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Howstuffworks "HowStuffWorks Table of Contents"
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A friend of mine says she can tell counterfeit bills by the way they “feel.” Is this possible?
A friend of mine told me that just because you have HIV doesn't mean you have AIDS. Is this true?
Are fluorescent bulbs really more efficient than normal light bulbs?
Are there more floods now than there used to be?
At night, why does it take my eyes several minutes to get used to darkness?
Biting on aluminum foil can be painful. Why?
Can anyone hear my baby monitor?
Can bug zappers help transmit diseases?
Can eye creams really do anything for fine lines, wrinkles, dark circles, and puffiness?
Can flour explode?
Can grass seed grow on a lava rock as well as it can grow on soil?
Can I get AIDS from a mosquito bite?
Can I get struck by lightning when I'm indoors?
Can I have more than one monitor on my Windows 98 machine?
Can I really trade my dollars in for gold bullion?
Can nasal sprays be addictive?
Can the curvature of the Earth only be seen from outer space?
Can two cans and a string really be used to talk over a distance?
Can water go bad?
Can you calculate how far away lightning struck by how long it takes for the thunder to arrive?
Can you explain pressurized airplane cabins?
Can you explain the basic difference between analog and digital technology?
Can you explain the diameter measurements used in bullets, wire and nails?
Can you make a rocket engine using hydrogen peroxide and silver?
Can you make time stand still?
Could a car run on compressed air?
Could anti-lock brakes detect a flat?
Could I power my computer or my TV with a bicycle generator?
Could I see a flashlight beam from Earth on the moon?
Could someone really find a mummy in his backyard?
Do certain radio wave frequencies (like those used by cell phones) pose health risks?
Do commercial jets have locks on the doors and ignition keys?
Do green tea, white tea and red tea come from the same plant?
Do race cars use gasoline like normal cars do, or do they use something else?
Do the digits in my social security number represent anything in particular?
Do the humps on camels hold water?
Do those tall, skinny speakers work differently than regular speakers?
Do whales and dolphins sleep?
Do you know what causes me to get leg cramps when I exercise, or, even worse, why I get cramps in my sleep after exercising during the day?
Do you know why some Web pages end in htm, others end in html, others end in asp and so on? Why all the different extensions?
Does adding more RAM to your computer make it faster?
Does drinking ice water burn calories?
Does it do any good to air out rugs and mattresses outside?
Does reading in low light hurt your eyes?
Does the chicken's body make the shell and fill it with the white and yolk, or does it make the white and yolk and then wrap the shell around it?
How 'Junkyard Wars' Works
How 'Making It' Works: Antigone Rising
How 'Unsolved History' Works
How 3-D Glasses Work
How 3-D Graphics Work
How 3-D PC Glasses Work
How 3DO Creates Video Games
How 401(k) Plans Work
How 529 Plans Work
How a BlackBerry Works
How a Block and Tackle Works
How a U.S. Spy Plane Works
How accessDTV Works
How Acoustic Guitars Work
How Ad Slogans Work
How Aerosol Cans Work
How Affiliate Programs Work
How AGP Works
How AIDS Works
How Air Bags Work
How Air Conditioners Work
How Air Force One Works
How Air Taxis Will Work
How Air Traffic Control Works
How Air-breathing Rockets Will Work
How Air-Powered Cars Will Work
How Aircraft Carriers Work
How Airline Crews Work
How Airline Freight Works
How Airlines Work
How Airplanes Work
How Airport Security Works
How Airports Work
How Alcohol Works
How Alcoholism Works
How Aliens Work
How Allergies Work
How Alligators Work
How AMBER Alert Works
How American Football Works
How Amplifiers Work
How Analog and Digital Recording Works
How and why do bats hang upside down all day?
How Anesthesia Works
How Animal Camouflage Works
How Animated Tattoos Work
How Animatronics Works
How Anthrax Works
How Anti-Lock Brakes Work
How Anti-shoplifting Devices Work
How Antimatter Spacecraft Will Work
How Antioxidants Work
How Apache Helicopters Work
How Aphrodisiacs Work
How are astronomers able to measure how far away a star is?
How are coffee, tea and colas decaffeinated?
How are Crayons and markers made?
How are movies stored on DVD discs?
How are people able to breathe inside a submarine?
How are the college football rankings determined?
How are the Voyager spacecraft able to transmit radio messages so far?
How Art Works
How Artificial Hearts Work
How Artificial Sweeteners Work
How Artificial Vision Will Work
How ASIMO Works
How Aspirin Works
How ASPs Work
How Asteroid Mining Will Work
How Asteroids Work
How ATMs Work
How Atom Smashers Work
How Atomic Clocks Work
How Atoms Work
How Atrial Fibrillation Works
How Augmented Reality Will Work
How Autofocus Cameras Work
How Automatic Transmissions Work
How Automobile Ignition Systems Work
How Automobiles Work
How Autopsies Work
How Avalanches Work
How B Vitamins Work
How Ballpoint Pens Work
How Band Equipment Works
How Bankruptcy Works
How Banks Work
How Banner Ads Work
How Barrier Islands Work
How Baseball Works
How Basketball Works
How Bats Work
How Batteries Work
How Bearings Work
How Becoming a Doctor Works
How Becoming an Airline Pilot Works
How Beer Works
How Biathlon Works
How Bicycles Work
How big does a meteor have to be to make it to the ground?
How Bigfoot Works
How Billiard Tables Work
How Biodiesel Works
How Biological and Chemical Warfare Works
How Biometrics Works
How BIOS Works
How Bird Flu Works
How Bits and Bytes Work
How BitTorrent Works
How Black Boxes Work
How Black Hawk Helicopters Work
How Black Holes Work
How Black Lights Work
How Blackjack Works
How Blackouts Work
How Blimps Work
How "Blink" Technology Works
How Blogs Work
How Blood Works
How Blu-ray Discs Work
How Blue Screens Work
How Bluetooth Works
How Body Armor Works
How Body Mass Index Works
How Bombs Work
How Bone China Works
How Boolean Logic Works
How Boomerangs Work
How Botox Works
How Bounty Hunting Works
How Bowling Pinsetters Work
How Bradley Fighting Vehicles Work
How Brain Death Works
How Brakes Work
How Bread Works
How Breast Implants Work
How Breathalyzers Work
How Bridges Work
How Broadband Over Powerlines Works
How Bug Zappers Work
How Building a Business Identity Works
How Building a Sales Team Works
How Building Implosions Work
How Bunker Busters Work
How Burglar Alarms Work
How Business Accounting Works
How Business Ideas Work
How Business Legal Structures Work
How Business Plans Work
How Buying a Car Works
How Buying a Cell Phone Works
How Buying a House Works
How C Programming Works
How C-4 Works
How Cable Modems Work
How Cable Television Works
How Caching Works
How Caffeine Works
How Calories Work
How Camcorders Work
How Camera Flashes Work
How Cameras Work
How Camshafts Work
How can a totally logical machine like a computer generate a random number?
How can an egg carton claim that the contained eggs have less fat and more vitamin E?
How can an electric toothbrush recharge its batteries when there are no metal contacts between the toothbrush and the base?
How can children from the same parents look so different?
How can I burn MP3s from my computer onto CD-Rs?
How can I make a pinewood derby car go faster?
How can I make my own battery to win a contest at school?
How can I measure the drag on a car?
How can I receive faxes in my home office without paying for a fax machine and phone line?
How can I tell if the light in my refrigerator goes off or not when I close the door?
How can I track the NASA's Starshine satellite?
How can my glasses change from transparent, when I'm inside, to dark when I go outdoors?
How can ozone be both good and bad?
How can the grass on the greens at a golf course be so perfect?
How can there be seedless grapes? How can they reproduce?
How can you make a wine glass sing?
How can you measure the height of a tall tower?
How Cancer Vaccines Will Work
How Cancer Works
How Capacitors Work
How Car Alarms Work
How Car Computers Work
How Car Cooling Systems Work
How Car Engines Work
How Car Financing Works
How Car Insurance Works
How Car Steering Works
How Car Suspensions Work
How Car Washes Work
How Carbon-14 Dating Works
How Carnivore Worked
How Carrier Battle Groups Work
How Cars Work
How CAT Scans Work
How Catalytic Converters Work
How Catering Works
How Caterpillar Backhoe Loaders Work
How Caterpillar Skid Steer Loaders & Multi Terrain Loaders Work
How Cavities and Fillings Work
How CD Burners Work
How CDs Work
How Cell Phones Work
How Cell-phone Jammers Work
How Cell-phone Radiation Works
How Cell-phone Viruses Work
How Cells Work
How Central Vacuum Systems Work
How Centropolis FX Creates Visual Effects
How CGI Scripting Works
How Chain Saws Work
How Champ Cars Work
How Chess Computers Work
How Child Car Seats Work
How Chocolate Works
How Cholesterol Works
How Christmas Lights Work
How Christmas Trees Work
How Christmas Works
How Chupacabras Work
How Cicadas Work
How Cinco de Mayo Works
How Cipro Works
How Circuit Breakers Work
How Cirque du Soleil Works
How Clocks Work
How Cloning Works
How Clothes Dryers Work
How Clutches Work
How Coffee Makers Work
How Coffee Works
How Cold Heat
™
Works
How College Admission Works
How College Financial Aid Works
How Combination Locks Work
How Comets Work
How Compasses Work
How Competitive Eating Works
How Composting Works
How Computer Keyboards Work
How Computer Memory Works
How Computer Mice Work
How Computer Monitors Work
How Computer Viruses Work
How Concordes Work
How Congestive Heart Failure Works
How Contact Lenses Work
How Convertibles Work
How Cooking the Books Works
How Cordless Telephones Work
How Corrective Lenses Work
How Cosmetic Dentistry Works
How could the year 2000 be a leap year when 1900 was not?
How Counterfeiting Works
How CPR Works
How Crack Cocaine Works
How Craps Works
How Crash Testing Works
How Creating an Online Business Works
How Creationism Works
How Credit Cards Work
How Credit Reports Work
How Credit Scores Work
How Crime-scene Clean-up Works
How Crop Circles Work
How Cruise Missiles Work
How Cryonics Works
How Cults Work
How Currency Works
How Customer Service Works
How Customs Works
How Cutting Your Own CD Works
How CVTs Work
How Dancing Monsters Work
How Deep Impact Works
How Déjà Vu Works
How Designer Children Will Work
How Diabetes Works
How Diagnosing Heart Disease Works
How Diamonds Work
How did public fountains, like those in Rome, work without any type of motor to pump the water?
How did the game of paintball get started?
How did they get a huge IMAX camera to the top of Mt. Everest?
How Diesel Engines Work
How Diesel Locomotives Work
How Diesel Two-Stroke Engines Work
How Diet Pills Work
How Dieting Works
How Differentials Work
How Digital Cameras Work
How Digital Cinema Works
How Digital Jewelry Will Work
How Digital Picture Frames Work
How Digital Rights Management Works
How Digital Television Works
How Dimmer Switches Work
How Dirty Bombs Work
How Disc Brakes Work
How Dishwashers Work
How Divorce Works
How DLP Sets Work
How DNA Computers Will Work
How DNA Evidence Works
How do 3-D glasses work?
How do 30 pounds of air in your tires hold up 2 tons of car?
How do a zebra's stripes act as camouflage?
How do antibiotics work?
How do artificial flavors work?
How do astronauts function in their spacesuits for hours at a time?
How do astronomers detect that a star has a planet orbiting it?
How do bacteria become resistant to antibiotics?
How do BB guns work?
How do big city "shell games" and "three card monte" games work?
How do bonds work?
How do brewers measure the alcohol in beer?
How do caucuses work?
How do CD-R discs work?
How do CD-RWs (rewriteable CDs) work?
How do CDs (certificates of deposit) work?
How do conference calls work?
How do developers get such realistic environments in video games?
How do diets that limit your carbohydrate consumption, like the Atkins diet, cause weight loss?
How do digital answering machines work?
How do digital signatures work?
How do dry chemical fire extinguishers work?
How do ear thermometers work?
How do exhaust headers work to improve engine performance?
How do fans make you feel cooler?
How do fireflies light up?
How do fish rise and sink in the water?
How do flies breathe?
How do fog machines work?
How do honeybees make honey?
How do I add another USB device to my computer if I am out of USB ports?
How do I add applications to the task bar in Windows 98?
How do I become an astronaut?
How do I build a telescope at home?
How do I burn calories on a stair machine?
How do I know if my catalytic converter has failed?
How do instant cameras work?
How do kosher foods work?
How do large Web sites handle the load of millions of visitors a day?
How do lip enhancers or lip plumpers like Lip Venom work?
How do Mexican jumping beans work?
How do microphones work, and why are there so many different types?
How do money market accounts work?
How do mood rings work?
How do motion sensing lights and burglar alarms work?
How do mutual funds work?
How do one-way mirrors work
How do optical mice work?
How do oysters make pearls?
How do people pull large objects with their teeth?
How do plants compare to solar cells when it comes to collecting solar energy?
How do polymer crystals work and why do they absorb so much water?
How do Pop Rocks candy work?
How do proximity-type Christmas-light testers work?
How do radio-controlled clocks that set themselves to the atomic clock in Colorado work?
How do retractable roofs in convertible stadiums work?
How do satellites orbit the earth?
How do savings accounts work?
How do scratch-and-sniff stickers work?
How do Sea Monkeys work?
How do self-cleaning ovens work?
How do smoke detectors intercommunicate?
How do sodium-acetate heat pads work?
How do spray bottles pump fluid?
How do stabilizer bars work?
How do stock options work?
How do store coupons work? How does the store get its money back?
How do stud finders work?
How do sunless-tanning products work?
How do television ratings work? How do they figure out how many people are watching a show?
How do the automobile ignition keys with chips embedded in them work?
How do the battery testers on battery packages work?
How do the blue-ish headlights on expensive luxury cars work?
How do the characters in video games move so fluidly?
How do the engines breathe in diesel submarines?
How do the shoplifting prevention systems in stores work?
How do the streetlights turn on automatically at night?
How do they color old black-and-white movies?
How do they create patterns in a baseball field?
How do they create the hopping cars you see in the movies?
How do they create the special effects in movies like "The Matrix" where the camera rotates around a frozen actor?
How do they determine what day Easter will occur on?
How do they get lead in a wooden pencil?
How do they get the balls in ball bearings so perfectly round and smooth?
How do they make cotton candy?
How do they make Fortune Cookies?
How do they make hollow chocolate Easter rabbits?
How do they make maple syrup?
How do they make marshmallows?
How do they make the ice at an ice skating rink?
How do they measure sea level?
How do they start jet engines on airplanes?
How do they superimpose the first-down line onto the field on televised football games?
How do those yo-yos with the special clutches work?
How do time and dates work?
How do torpedo engines work under water?
How do touch-sensitive lamps work?
How do touchscreen monitors know where you're touching?
How do trick birthday candles work?
How do truck weigh stations work?
How do tuned intake runners work on your car?
How do viruses and worms spread in e-mail?
How do Voice over IP audio conferences work?
How Do Waterjets Work?
How do web conferencing programs work?
How do you calculate G-forces?
How do you convert engine torque to horsepower?
How do you make clear ice cubes?
How do you replace a seal under a toilet?
How do you throw a boomerang so that it comes back to you?
How do you treat atrial fibrillation?
How do you write the chemical reaction that takes place in a smoke detector?
How does a ball point pen work?
How does a black light work?
How does a blood pressure gauge (sphygmomanometer) work? What exactly is blood pressure?
How does a bubble jet printer work?
How does a candle work?
How does a car's rearview mirror work when it's in the glare-resistant setting?
How does a carburetor work?
How does a cat's purring work? How do cats make the purring noise?
How does a catapult work?
How does a CB radio antenna work?
How does a computer's parallel port work?
How does a computer's uninterruptible power supply (UPS) work?
How does a counterfeit detector pen work?
How does a Crookes' radiometer work?
How does a dehumidifier work?
How does a Dippy Bird work?
How does a dollar bill changer work?
How does a DVD work?
How does a fiber optic cable work?
How does a FireWire (IEEE-1394) connection work?
How does a fluorescent starter work?
How does a Fresnel lens work?
How does a frost-free refrigerator work?
How does a Galileo thermometer work?
How does a gasoline pump at a filling station know when the tank is full?
How does a GFCI outlet work?
How does a gun silencer work?
How does a halogen light bulb work?
How does a heat pump work?
How does a hybrid car work?
How does a hydraulic ram pump work?
How does a jet truck work?
How does a kidney dialysis machine work?
How does a laser speed gun work to measure a car's speed?
How does a lava lamp work?
How does a lie detector (polygraph) work?
How does a long-distance call work?
How does a Magna Doodle Work?
How does a magnetic stripe on the back of a credit card work?
How does a magneto work?
How does a master key work?
How does a Miller-cycle engine work?
How does a movie clapperboard work?
How does a "perfect game" in baseball work?
How does a pinhole camera work?
How does a quantum computer work?
How does a rebreather work?
How does a rice cooker know when to turn off?
How does a security passcard work?
How does a seismograph work? What is the Richter scale?
How does a self-winding watch work?
How does a speedometer in an airplane work?
How does a "Star Wars" lightsaber work?
How does a T1 line work?
How does a three-way light bulb work?
How does a time-of-use program with the power company work?
How does a traffic light detect that a car has pulled up and is waiting for the light to change?
How does a vibrating cell phone or pager work?
How does a water softener work?
How does a water-cooled air conditioner work?
How does a Zip drive store so much more data than a floppy drive?
How does acne work?
How does acupressure work?
How does aging work?
How does an afterburner work?
How does an air bag work?
How does an EPIRB distress radio work?
How does an Etch-a-Sketch work?
How does an Indiglo watch work?
How does an oxygen canister on an airplane work? How can heat generate oxygen?
How does an X-ray machine work?
How does botulism work?
How does "bulletproof" glass work?
How does Caller ID work? How is the caller's phone number sent to my phone?
How does catnip work?
How does chlorine bleach work?
How does chlorine work to clean swimming pools?
How does copy protection on a video tape work?
How does disk defrag work?
How does dry cleaning work?
How does dry ice work?
How does Dursban work?
How does exfoliation affect acne treatment?
How does faxing over e-mail work?
How does faxing over the Internet work?
How does glow-in-the-dark stuff work?
How does gravity assist work with interplanetary satellites?
How does gravity work?
How does hemp work?
How does homeschooling work?
How does JavaScript work and how can I build simple calculators with it?
How does microdermabrasion affect skin quality and clarity?
How does Mobil Travel Guide
®
rate hotels?
How does my computer know when to activate the screensaver?
How does Napster work, and why is there such a huge fight around it right now?
How does nitrous oxide help an engine perform better?
How does olestra work?
How does popcorn work?
How does pressure-treated lumber work?
How does reverse osmosis work?
How does rust work?
How does safety glass work?
How does satellite Internet operate?
How does saturation diving work?
How does scar removal work?
How does SETI@home work?
How does silk-screening work?
How does someone become a saint?
How does St. John's wort work?
How does stealth technology work?
How does the aurora borealis (the Northern Lights) work?
How does the baby come out?
How does the baby eat and breathe in the uterus?
How does the ball return work on a coin-operated pool table?
How does the Downy fabric-softener ball work?
How does the e-mail notification in my Web browser work?
How does the Electoral College work?
How does the electron gun inside a TV work, and why is it called an "electron gun"?
How does the FCC police obscenity?
How does the Hanukkah Menorah work?
How does the herbicide Roundup work?
How does the light gun for a video game work?
How does the lighter in a BBQ grill work?
How does the Melissa virus work?
How does the Nextel Cup points system work?
How does the NFL's salary cap work?
How does the Nobel Prize work?
How does the oxygen sensor in a car work?
How does the pop-up timer on a turkey work?
How does the sense of smell work? What causes a smell?
How does the Social Security system work?
How does the thermostat in a car's cooling system work?
How does the toilet in a commercial airliner work?
How does the "walkie-talkie" feature on a Nextel phone work?
How does the widget in a beer can work?
How does the windchill factor work?
How does this card trick work?
How does venture capital work?
How does your body know the difference between dominant and recessive genes?
How does your stomach keep from digesting itself?
How Dog Training Works
How Dogs Work
How Domain Name Servers Work
How Doorbells Work
How Dreamcast Works
How Dreams Work
How Drum Brakes Work
How Dry Cleaning Works
How DSL Works
How Dual-clutch Transmissions Work
How Duels Work
How DVDs Work
How DVRs Work
How E-Bombs Work
How E-commerce Works
How E-learning Works
How E-mail Works
How E-ZPass Works
How Earthquakes Work
How Easter Works
How eBay Works
How Ecolodges Work
How Ejection Seats Work
How Electric Cars Work
How Electric Guitars Work
How Electric Motors Work
How Electricity Works
How Electromagnetic Propulsion Will Work
How Electromagnets Work
How Electronic Gates Work
How Electronic Ink Will Work
How Electronic Payment Works
How Elevators Work
How Elumens Vision Station Works
How Emergency Power Systems Work
How Emergency Rooms Work
How Employee Compensation Works
How Encryption Works
How Escalators Work
How ESP Works
How Espresso Machines Work
How Espresso Works
How Ethernet Works
How EUV Chipmaking Works
How Evolution Works
How EVP Works
How Exchange Rates Work
How Exercise Works
How Exorcism Works
How Exoskeletons Will Work
How Exploding Manholes Work
How EyeVision Works
How F-15s Work
How F/A-18s Work
How F/A-22 Raptors Work
How Facelifts Work
How Facial Recognition Systems Work
How Fantasy Football Works
How far does ultraviolet light penetrate into the body?
How Fat Cells Work
How Fat Vaccines Will Work
How Fats Work
How Fax Machines Work
How Fear Works
How FEMA Works
How Fencing Equipment Works
How Fiber Optics Work
How File Compression Works
How Film Festivals Work
How Finding Office Space Works
How Fingerprint Scanners Work
How Fire Breathing Works
How Fire Engines Work
How Fire Extinguishers Work
How Fire Works
How Firefox Works
How Firewalking Works
How Firewalls Work
How FireWire Works
How Fireworks Work
How FIRST Works
How Flamethrowers Work
How Flash Memory Works
How Flexplay DVDs Work
How Flintlock Guns Work
How Floating Cities Will Work
How Floods Work
How Floppy Disk Drives Work
How Fluorescent Lamps Work
How Flying Cars Will Work
How Flying Wings Will Work
How FoIP Works
How Food Preservation Works
How Food Processors Work
How Food Works
How Force, Power, Torque and Energy Work
How Foster Care Works
How Four-Wheel Drive Works
How Franchising Works
How Freelance Magazine Writing Works
How Freeze-Drying Works
How Frequent Flier Programs Work
How Friday the 13th Works
How Fuel Cells Work
How Fuel Gauges Work
How Fuel Injection Systems Work
How Fuel Processors Work
How Fusion Propulsion Will Work
How Game Boy Advance Works
How GameCube Works
How Gas Lanterns Work
How Gas Masks Work
How Gas Prices Work
How Gas Turbine Engines Work
How Gasoline Works
How Gear Ratios Work
How Gears Work
How Geisha Work
How Gene Pools Work
How Ghost Busters Work
How Gizmondo Works
How Gliders Work
How GM's Hy-wire Works
How Gnutella Works
How Going Over Niagara Works
How Golf Clubs Work
How Google Earth Works
How GPS Receivers Work
How Graphics Cards Work
How Grass Works
How Grenades Work
How Grills Work
How Guide Dogs Work
How Guns Work
How Gyroscopes Work
How Hair Coloring Works
How Hair Dryers Work
How Hair Replacement Works
How Halloween Works
How Ham Radio Works
How Hang Gliding Works
How Hangovers Work
How Hanukkah Works
How Hard Disks Work
How hard is it to set up a network between two computers in my home?
How Hardwood Floors Work
How Harley-Davidson Works
How HD Upconverters Work
How HD-DVD Works
How Health Insurance Works
How Hearing Works
How Heart Disease Works
How Helicopters Work
How Helium Balloons Work
How HEMI Engines Work
How High-speed Dial-up Works
How Hiring Works
How Hockey Works
How Holographic Environments Will Work
How Holographic Memory Will Work
How Holographic Versatile Discs Work
How Home Dry Cleaning Works
How Home Networking Works
How Home Thermostats Work
How Horsepower Works
How Hostage Negotiation Works
How Hot Air Balloons Work
How House Construction Works
How Hoverboards Will Work
How Hubble Space Telescope Works
How Human Cloning Will Work
How Human Networking Works
How Humidifiers Work
How Hurricanes Work
How Hydraulic Cranes Work
How Hydraulic Machines Work
How Hydropower Plants Work
How Hypersonic Planes Work
How Hypnosis Works
How Ice Cream Works
How Ice Rinks Work
How Icemakers Work
How IDE Controllers Work
How Identity Theft Works
How Illustration Works
How IMAX Works
How Income Taxes Work
How Inductors Work
How Industrial Light & Magic Works
How Infectious Diseases Work
How Inflatable Spacecraft Will Work
How Inkjet Printers Work
How Instant Film Works
How Instant Messaging Works
How Intelligent Design Works
How Intelligent Highways Will Work
How Internet Cookies Work
How Internet Infrastructure Works
How Internet Radio Works
How Internet Search Engines Work
How Interplanetary Internet Will Work
How Invisibility Cloaks Work
How iPods Work
How IPOs Work
How Iron & Steel Work
How Irrigation Works
How is an electric guitar different from an acoustic guitar?
How is helium made?
How is my radio able to display the station's call letters?
How is sound recorded on motion picture film?
How is the LCD in a laptop computer so bright?
How iTunes Works
How Java Works
How Joysticks Work
How Jumbo TV Screens Work
How Karate Works
How Krispy Kremes Work
How Kwanzaa Works
How LAN Switches Work
How Landfills Work
How Landmines Work
How Laptops Work
How Laser Printers Work
How Lasers Work
How LASIK Works
How Laughter Works
How Lawsuits Work
How LCDs Work
How LCoS Works
How Lethal Injection Works
How Lie Detectors Work
How Light Bulbs Work
How Light Emitting Diodes Work
How Light Microscopes Work
How Light Propulsion Will Work
How Light Sticks Work
How Light Works
How Lightning Works
How Lightsabers Work
How Liposuction Works
How Liquefied Petroleum
Gas Works
How Liquid Motion Lamps Work
How Location Tracking Works
How Lock Picking Works
How Locks Work
How long can a germ live in a room?
How long can a human survive in outer space?
How Long-Distance Scams Work
How Lotteries Work
How Love Works
How Low-carbing Works
How Low-Fat Baking Works
How LRAD Works
How Luge Works
How Luminol Works
How M1 Tanks Work
How Machine Guns Work
How Mad Cow Disease Works
How Maglev Trains Work
How Magna Doodle Works
How Manual Transmissions Work
How many calories does a person need daily?
How many regular-sized helium-filled balloons would it take to lift someone?
How many senses does a human being have?
How many sheets of paper can be produced from a single tree?
How many solar cells would I need in order to provide all of the electricity that my house needs?
How many teaspoons are there in a cubic light year?
How March Madness Works
How Mardi Gras Works
How Marijuana Works
How Market Research Works
How Marketing Plans Work
How Mars Odyssey Works
How Mars Works
How Master Cylinders and Combination Valves Work
How Maybachs Work
How Media Chairs Work
How Media-center PCs Work
How Medicare Works
How Metal Detectors Work
How Microcontrollers Work
How Microdermabrasion Works
How Microprocessors Work
How Microsoft Works
How Microwave Cooking Works
How Military Camouflage Works
How Military Pain Beams Will Work
How Military Snipers Work
How Minor League Baseball Teams Work
How Mirages Work
How Missile Defense Systems Will Work
How Missiles Work
How Mistletoe Works
How MOAB Works
How Mobile Printing Works
How Modems Work
How Moissanite Jewels Work
How Moonshine Works
How Mortgages Work
How Mosquito Magnets® Work
How Mosquitoes Work
How Motes Work
How Motherboards Work
How Motherboards Work
How Motorcycles Work
How Mountain Bikes Work
How Movie Distribution Works
How Movie Projectors Work
How Movie Screens Work
How Movie Sound Works
How MP3 Files Work
How MP3 Players Work
How MREs Work
How MRI Works
How much coal is required to run a 100-watt light bulb 24 hours a day for a year?
How much corn would I need to grow in order to produce enough ethanol fuel to drive my car across the country?
How much does 20-pound bond paper weigh?
How much does it cost to run an electric blanket?
How much does planet Earth weigh?
How much does the average person eat in two years?
How much does the U.S. president get paid?
How much fuel does an international plane use for a trip?
How much gasoline does the United States consume in one year?
How much ice would I have to store up in the winter in order to air condition my house all summer?
How much oxygen does a person consume in a day?
How much power does a small transformer consume if it is plugged in but not doing anything?
How much sugar do they really put in soft drinks?
How much water is there on Earth?
How Mufflers Work
How Mummies Work
How Muscles Work
How Music Licensing Works
How Music Royalties Work
How MusicTellers Will Work
How MySpace Works
How N64 Works
How Nail Guns Work
How Nanotechnology Will Work
How Narnia Works
How NASCAR Race Cars Work
How NASCAR Safety Works
How NATO Works
How Natural-gas Vehicles Work
How Near-death Experiences Work
How Neopets.com Works
How Network Address Translation Works
How New York Works
How Newsgroups Work
How Newspapers Work
How NFL Equipment Works
How Nicotine Works
How Night Vision Works
How Ninja Work
How Nintendo DS Works
How Nirvana Works
How Nostradamus Works
How Nuclear Bombs Work
How Nuclear Fusion Reactors Work
How Nuclear Medicine Works
How Nuclear Power Works
How Nuclear Radiation Works
How Odometers Work
How Offset Printing Works
How often do state quarters come out and how many does the mint produce?
How Oil Drilling Works
How Oil Refining Works
How OLEDs Work
How Olympic Timing Works
How Olympic Torches Work
How Online Dating Works
How Online Degrees Work
How Online Gambling Works
How OnStar Works
How Operating Systems Work
How Operations Works
How Organ Transplants Work
How Organic Food Works
How Oscillating Sprinklers Work
How Oscillators Work
How OSI Works
How OxyContin Works
How Ozone Pollution Works
How Paintball Works
How Paparazzi Work
How Parallel Ports Work
How Passports Work
How Patents Work
How Patriot Missiles Work
How Pawnshops Work
How PayPal Works
How PC Power Supplies Work
How PCI Express Works
How PCI Works
How PCs Work
How PDAs Work
How Pendulum Clocks Work
How "Penny Per Page" Might Work
How Performance-Enhancing Drugs Work
How Perl Works
How Personal Air Vehicles Work
How Personal Jetpacks Work
How Personal Watercraft Work
How Philanthropy Works
How Phone-line Networking Works
How Photocopiers Work
How Photographic Film Works
How Photonics Masts Will Work
How Phytochemicals Work
How Pi Works
How Pickpockets Work
How Pinball Machines Work
How Planet Hunting Works
How Planning an Online Business Works
How Plasma Cutters Work
How Plasma Displays Work
How PlayStation 2 Works
How PlayStation 3 Works
How PlayStation Works
How PMS Works
How Podcasting Works
How Poison Ivy Works
How Poker Works
How Pole Vaulting Works
How Police Chases Work
How Police Dogs Work
How Political Conventions Work
How Pop-Up Turkey Timers Work
How Portable Media Centers Work
How Power Brakes Work
How Power Door Locks Work
How Power Grids Work
How Power Windows Work
How Power-line Networking Works
How Pregnancy Works
How Prenatal Testing Works
How Presidential Debates Work
How Presidential Memoirs Work
How Printable Computers Will Work
How Pro Wrestling Works
How Product Placement Works
How Project Mercury Worked
How Projection Television Works
How Promoting an Online Business Works
How Quantum Computers Will Work
How Quartz Watches Work
How Quasiturbine Engines Work
How quickly does hair grow?
How Quicksand Works
How Radar Detectors Work
How Radar Works
How Radial Engines Work
How Radio Controlled Toys Work
How Radio Scanners Work
How Radio Works
How Radon Works
How Rail Guns Work
How Rainbows Work
How Rainforests Work
How RAM Works
How Ramadan Works
How Recessions Work
How Record Labels Work
How Recording Contracts Work
How Red Baron's Antiques Works
How Red-light Cameras Work
How Refractive Vision Problems Work
How Refrigerators Work
How Relays Work
How Remote Controls Work
How Remote Entry Works
How Removable Storage Works
How Restaurant Pagers Work
How Revolvers Work
How RFIDs Work
How Ringtones Work
How Riot Control Works
How Rip Currents Work
How Robonauts Will Work
How Robotic Surgery Will Work
How Robotic Vacuums Work
How Robots Work
How Rock Climbing Works
How Rocket Engines Work
How Rocket-Propelled Grenades Work
How Roller Coasters Work
How Roller Derby Works
How ROM Works
How Rosh Hashanah Works
How Rotary Engines Work
How Routers Work
How Routing Algorithms Work
How Rumble Robots Work
How Safaris Work
How Safecracking Works
How Sales Techniques Work
How Samurai Work
How SARS Works
How Satellite Radio Works
How Satellite TV Works
How Satellites Work
How SATs Work
How Scanners Work
How Screensavers Work
How SCSI Works
How SCUBA Works
How Search-and-rescue Dogs Work
How Seatbelts Work
How See 'n Says Work
How Segways Work
How Self-healing Spacecraft Will Work
How Self-inflating Tires Work
How Self-Publishing Works
How Selling a Car Works
How Semantic Web Works
How Semiconductors Work
How Sequential Gearboxes Work
How Serial Ports Work
How SETI Works
How Setting Up a Home Office Works
How Sewer and Septic Systems Work
How Sewing Machines Work
How Sex Works
How Shark Attacks Work
How Sharks Work
How Shepherd Center Works
How Shockwave 3-D Technology Works
How Shotguns Work
How Sidewinder Missiles Work
How Singing Fish Work
How Skydiving Works
How Skyscrapers Work
How Sleep Works
How Slingbox Works
How Slot Machines Work
How Smart Bombs Work
How Smart Clothes Work
How Smart Structures Will Work
How Smart Watches Work
How Smart Windows Work
How Smartphones Work
How Smoke Detectors Work
How SMS Works
How Snakebots Will Work
How Snakes Work
How Snow Makers Work
How Snowmobiles Work
How Social Security Numbers Work
How Social Security Works
How Solar Cells Work
How Solar Eclipses Work
How Solar Sail Technology Works
How Solar Sails Work
How Solar Yard Lights Work
How Sonic Cruisers Will Work
How Sound Cards Work
How Sourdough Bread Works
How Space Elevators Will Work
How Space Planes Will Work
How Space Shuttles Work
How Space Stations Work
How Space Tourism Works
How Space Wars Will Work
How SpaceShipOne Works
How Spacesuits Work
How Spam Works
How Speakers Work
How Special Relativity Works
How Spiders Work
How Spontaneous Human Combustion Works
How Sports Betting Works
How Spud Guns Work
How Spy Flies Will Work
How Spyware Works
How St. John's Wort Works
How St. Patrick's Day Works
How Stars Work
How Start-up Capital Works
How State Dinners Work
How Steadicams Work
How Stealth Bombers Work
How Steam Engines Work
How Stem Cells Work
How Stereolithography (3-D Layering) Works
How Stinger Missiles Work
How Stirling Engines Work
How Stocks and the Stock Market Work
How Stone Lithography Works
How Strikes Work
How strong are the magnets in an MRI machine?
How Strykers Work
How Stun Guns Work
How Submarines Work
How Sudoku Works
How Sunburn and Sun Tans Work
How Sunglasses Work
How Superchargers Work
How Supreme Court Appointments Work
How Surge Protectors Work
How Surround Sound Works
How Sushi Works
How Swearing Works
How Sweat Works
How Swimming Pools Work
How Sword Making Works
How Tabloids Work
How Tamiflu
®
Works
How Tape Recorders Work
How Tarot Cards Work
How Tattoo Removal Works
How Tattoos Work
How Teleconferencing Works
How Telephones Work
How Teleportation Will Work
How Television Works
How Terraforming Mars Will Work
How Thanksgiving Works
How the ACLU Works
How the Airborne Internet Will Work
How the Airbus A380 Works
How the Amish Work
How the Atkins Diet Works
How the Batmobile Works
How the Batsuit Works
How the BMW H2R Works
How the Bugatti Veyron Works
How the Cannes Film Festival Works
How the Census Works
How the Chrysler ME Four-Twelve Works
How the Club Circuit Works
How the Crew Exploration Vehicle Will Work
How the Death Star Works
How the Delta IV Heavy Works
How the DHARMA Initiative Works
How the Do Something Brick Awards Work
How the Eden Project Works
How the Electoral College Works
How the Emmy Awards Work
How the Enzo Ferrari Works
How the ESRB Works
How the Euro Works
How the EZ-Rocket Works
How the Fed Works
How the First-Down Line Works
How the Flu Works
How the Ford Escape Hybrid Works
How the Ford Shelby GR-1 Works
How the Ford SynUS Works
How the Freecycle
Network™ Works
How the FSF-1 Sea Fighter Works
How the Future Force Warrior Will Work
How the General Lee Works
How the Georgia Aquarium Works
How the Gibbs Aquada Works
How the HowStuffWorks Book Works (2001)
How the Hydrogen Economy Works
How the "Jaws of Life" Work
How the Jeep Hurricane Works
How the Kelley Blue Book Works
How the Leonid Meteor Shower Works
How the Lotus Elise Works
How the Mafia Works
How the Male Birth-control Pill Will Work
How the Mars Exploration Rovers Work
How the Mercedes SLR Works
How The Nature Conservancy Works
How the Navy SEALs Work
How the New $20 Bill Works
How the NFL Draft Works
How the Node Explorer Works
How the Old Napster Worked
How the Oscars
®
Work
How the Papacy Works
How the Phantom Works
How the Physics of Football Works
How the PlayStation Portable Works
How the Porsche Carrera GT Works
How the Predator UAV Works
How the Radio Spectrum Works
How the Rules of War Work
How the Shelby Cobra GT500 Works
How the Shoah Foundation Works
How the Sun Works
How the Super Bowl Works
How the Swing States Work
How the Tornado Intercept Vehicle Works
How the Toyota MTRC Works
How the Toyota PM Works
How the U.S. Customs Service Works
How the U.S. Draft Works
How the United Nations Works
How the V-22 Osprey Works
How the Volvo 'Your Concept Car' Works
How the World Health Organization Works
How the World Wildlife Fund Works
How the Year 2000 Problem Worked
How Thermometers Work
How Thermoses (Vacuum Flasks) Work
How Three-Way Switches Work
How THX Works
How Time Travel Will Work
How Time Works
How Timeshares Work
How Tipping Works
How Tire Pressure Gauges Work
How Tires Work
How to Apply an Oil Finish to Wooden Furniture
How To Calculate Your Pregnancy Due Date
How to Care for Your Clothes
How to Choose a Doctor
How To Choose A Gas Grill
How to Choose a Medical Specialist
How to Clean Cooktops
How to Clean Cookware
How to Clean Large Kitchen Appliances
How to Clean Natural Fabrics
How to Clean Servingware
How to Clean Small Kitchen Appliances
How to Clean Synthetic Fabrics
How to Clean Windows
How to Clean Your Bathroom
How to Clean Your Bedding
How to Clean Your Home Furnishings
How to Clean Your Walls and Ceilings
How to Cope With Diabetes Complications
How to Create a Home Office
How To Get Pregnant Using An Ovulation Calendar
How to Identify Antique Wooden Furniture for Refinishing
How to Install Drywall
How to Manage Your Diabetes Care
How to Monitor Your Glucose
How to Organize Household Papers
How to Organize Your Closet
How to Play Omaha Poker
How to Play Whist
How to Remove Adhesive Tape Stains
How to Remove Maple and Corn Syrup Stains
How to Repair a Toilet
How to Replace an Incandescent Light Fixture
How to Stick to a Diabetic Diet
How to Strip Wooden Furniture
How to Use Diabetes Pills
How Toasters Work
How Toilets Work
How Tooth Whitening Works
How Top 40 Radio Works
How Tornadoes Work
How Torque Converters Work
How Tower Cranes Work
How Trade Shows Work
How Traveling Sprinklers Work
How Tsunamis Work
How Turbochargers Work
How Turn Signals Work
How TV Animation Works
How TV Phones Work
How Two-stroke Engines Work
How Ubiquitous Networking Will Work
How UFOs Work
How Ultrasound Works
How Underground Pet Fences Work
How Universal Translators Will Work
How UPC Bar Codes Work
How Urban Gaming Works
How Urban Legends Work
How USB Ports Work
How Vacuum Cleaners Work
How Valentine's Day Works
How Vampires Work
How Van de Graaff Generators Work
How VCRs Work
How VDSL Works
How Venus Flytraps Work
How Verbal Self-Defense Works
How Viagra Works
How Video Editing Works
How Video Formatting Works
How Video Game Systems Work
How Virtual Memory Works
How Virtual Offices Work
How Virtual Private Networks Work
How Viruses Work
How Vision Works
How VistaPrint Works
How Vitamin C Works
How VoIP Works
How Volcanoes Work
How WAP Works
How Washing Machines Work
How Washington, D.C. Works
How Water Blasters Work
How Water Heaters Work
How Water Slides Work
How Water Towers Work
How Wave Pools Work
How Web Advertising Works
How Web Animation Works
How Web Pages Work
How Web Servers Work
How Webcams Work
How Weightlessness Works
How West Nile Virus Works
How Whales Work
How WiFi Phones Work
How WiFi Works
How Wikis Work
How Wildfires Work
How will the Mir space station be deorbited?
How WiMAX Works
How Windshield Wipers Work
How Winemaking Works
How Wires, Fuses and Connectors Work
How Wiretapping Works
How Witchcraft Works
How Witness Protection Works
How Workplace Surveillance Works
How WWII Fighter Planes Worked
How X-rays Work
How Xbox 360 Works
How Xbox Live Works
How Xbox Works
How Yo-Yos Work
How Yom Kippur Works
How Your Brain Works
How Your Heart Works
How Your Immune System Works
How Your Kidneys Work
How Your Lungs Work
How Zippers Work
How Zombies Work
I am wondering what the little recycling symbols that you see on some plastic items mean. How many different symbols are there?
I have heard that carbon monoxide is extremely poisonous. Can you explain why?
I heard someone mention a "third team" in a football game. What is that? Who are these guys and what do they do?
I just saw a movie where the main character, a British secret agent, is revived after 30 years on ice. Are scientists actually working on this stuff?
I would like to donate blood -- do they need all blood types or just certain ones?
I would like to increase the horsepower of my car's engine. What's the best way to do this?
I'm looking for a new computer monitor. What does the salesperson mean when he says I need a monitor with a .28 dot pitch or better?
I've heard of bank robbers being foiled by a "dye pack" put in their money stash. What is a "dye pack"?
I've noticed that I am not allowed to use my cell phone in airplanes or in hospitals. Why are these prohibitions in place?
If all the money in the U.S. only totals $6 trillion, how can the New York Stock Exchange have stocks valued at $15 trillion?
If daytime running lights were mandatory in the U.S., and all vehicles had them, how much extra gasoline would that use each year?
If diesel engines are more efficient, why do most cars have gasoline engines?
If I want to get started creating my own Web site, what do I have to do?
If nature abhors a vacuum, then why doesn't the vacuum of space suck away all of the Earth's atmosphere?
If the polar ice caps melted, how much would the oceans rise?
If the temperature is 30 degrees F, why do we sometimes get snow and other times get freezing rain?
If water is made up of hydrogen and oxygen, why can't we breathe underwater?
If you could spin a carousel fast enough to get its rim moving at nearly the speed of light, would time stand still for people on the carousel?
If you took all of the gold in the world and put it in one place, how much would there be?
If you were to move all of the matter in the universe into one corner, how much space would it take up?
In a kitchen oven, what is the difference between the bake setting and the broil setting?
In a PA system, how does feedback work to cause that howling sound?
In a track meet, how are false starts detected?
In baseball, how does a pitcher throw a curveball?
In built-in lawn sprinkling systems, there is a device called an anti-siphon valve. What is it for and how does it work?
In Windows, what is 'Safe Mode' used for and why?
Inside 'Serenity'
Inside 'Shark Tale'
Inside a Bathroom Scale
Inside a Combination Lock
Inside a Competition Tractor
Inside a Digital Cell Phone
Inside a Power-Cube Transformer
Inside a TV Remote Control
Inside a Wind-up Alarm Clock
Inside an Electric Razor
Inside an Electric Screwdriver
Inside Engines
Inside Ladder 49
Inside The Amazing Race
Is a tomato a fruit or a vegetable?
Is antibacterial soap any better than regular soap?
Is chocolate poisonous to dogs?
Is hyaluronic acid an antioxidant? What does it do for my skin?
Is it better to turn my computer off when I am not using it or leave it on all the time?
Is it harmful to breathe 100-percent oxygen?
Is it more efficient to mow the yard in a spiral or up and back?
Is it possible to detect if someone is illegally using my phone line?
Is it possible to generate electricity directly from heat?
Is it possible to see (with a telescope) the stuff left behind on the moon?
Is it true that a diesel engine can operate under water while a gasoline engine cannot?
Is it true that grilling meat can cause cancer?
Is it true that scientists are predicting a really big earthquake will sink western California?
Is it true that the Mac G4 processor is twice as fast as a Pentium III?
Is the sound on vinyl records better than on CDs or DVDs?
Is there a difference between inline and V engine configurations?
Is there a difference between monkeys and apes?
Is there a way to compare a human being to an engine in terms of efficiency?
Is there a way to make my sunglasses scratch-resistant?
Is there an easy way to record a radio show so I can listen to it later?
Is there any rhyme or reason to how U.S. interstate highways are numbered?
Is there any way to see satellites that are in orbit?
Is there something in turkey that makes you sleepy?
Is your name really Marshall Brain?
Marshall, where do you go when YOU have a question?
Meteors burn up when they hit the Earth's atmosphere. Why doesn't the space shuttle?
My glasses have an anti-reflective coating. How does that work?
My scanner has a resolution of 9,600x1,200 dpi -- what do those numbers mean?
On a microprocessor like a Pentium or a G5, why can't they simply crank the speed up to 1,000 GHz?
On television, how does closed captioning work?
Someone started controlling my computer over the Internet -- what happened?
Someone told me that if there are 20 people in a room, there's a 50/50 chance that two of them will have the same birthday. How can that be?
What are all the different ways to store energy besides using rechargeable batteries?
What are amps, watts, volts and ohms?
What are calories? How are they measured in food?
What are carbide tips?
What are chiggers and how do they bite?
What are copyrights and patents?
What are crop circles?
What are dissolvable stitches?
What are electrolytes?
What are film festivals?
What are frankincense and myrrh?
What are genetically modified (GM) foods?
What are Gouraud shading and texture mapping in 3-D video games?
What are homogenization and pasteurization?
What are hot dogs made from?
What are motion cards and how do they work?
What are MP3 files and how do they work?
What are relational databases?
What are some effective communication tools for keeping employees in touch with the office?
What are stem cells and what are they used for?
What are system resources, and why do I run out of them?
What are the 12 Days of Christmas?
What are the benefits of red tea in beauty products?
What are the best over-the-counter remedies for a hangover?
What are the best settings when e-mailing digital pictures to friends, and what settings do I use if I want to print the picture?
What are the bumps at the end of computer cables?
What are the differences between the various "chapters" of bankruptcy?
What are the different types of brake fluid?
What are the different types of computers?
What are the different types of divorce?
What are the "four Cs" that people talk about when buying a diamond?
What are the standard top-level domain names and who controls them?
What are the twelve signs of the Zodiac?
What are those microchips that people put in their dogs?
What are TrueType fonts?
What are vitamins and how do they work?
What can I do about "Global Warming"?
What causes a rainbow?
What causes a sonic boom?
What causes an ice cream headache?
What causes heat stroke?
What causes helium balloons to lose their lift after a day or two?
What causes high tide and low tide? Why are there two tides each day?
What causes me to gain 2 or 3 pounds during the day and then lose 2 or 3 pounds while I sleep?
What causes poison ivy?
What causes snoring and can anything be done about it?
What causes "the bends"?
What causes the common cold?
What causes the faint horizontal lines on my monitor?
What causes the loud banging noise in my home's pipes?
What causes the seasons?
What causes the smell after rain?
What causes things like fatal exception errors and invalid page faults?
What constitutes a person's IQ?
What do digits in phone numbers mean?
What do movie ratings mean, and who applies them?
What do the big diamond-shaped signs with red, yellow and blue diamonds mean?
What do the brake warning lights mean in my car?
What do the little boxes that the phone company has around our neighborhood do?
What do the symbols on the U.S. $1 bill mean?
What do the UL marks on so many products mean?
What do the yellow and black wires in a home telephone jack do?
What do video game ratings mean?
What do you call the @ symbol used in e-mail addresses?
What does "2.4 liter" mean in the context of an engine?
What does 900 MHz mean in a cordless phone?
What does a V-chip really do and how does it work?
What does Alt+F4 do?
What does "Auld Lang Syne" mean?
What does "Case Hardened" mean when it's stamped on a piece of metal?
What does GSM mean in a cell phone?
What does it mean when a barometer is rising or falling?
What does it mean when a car has dual overhead cams?
What does it mean when a hard disk has a "head crash"?
What does it mean when someone has 20/20 vision?
What does not guilty by reason of insanity mean?
What does octane mean?
What does open source mean?
What does PEZ mean?
What does R.S.V.P. mean?
What does solid-state mean in relation to electronics?
What does tear gas do?
What does the battery light on the dashboard mean?
What does the "CE" logo I see on lots of products mean?
What does the computer in a car do?
What does the filter on a cigarette do?
What does the name "WD-40" stand for?
What does the VTEC system in a Honda engine do?
What does the weight mean on a can of motor oil?
What exactly is a blueprint?
What exactly is amnesia?
What exactly is dyslexia?
What exactly is inflation?
What exactly is Jell-O made from?
What exactly is Mensa? How smart do you have to be to join?
What exactly is pastrami?
What force causes a 3-pole motor to spin one way and not the other?
What gives a Harley-Davidson motorcycle its distinctive sound?
What happens if I don't fill out my census form?
What happens if I touch the surface of a CD?
What happens when pregnant women smoke?
What happens when someone gets a Botox injection?
What if you fell out of an airplane without a parachute?
What if you were on an elevator and the cable broke?
What is a birthmark?
What is a carat, and how does it relate to a karat?
What is a catalytic converter and how does it work?
What is a cavity in a tooth? Why do they drill it?
What is a "computer algorithm"?
What is a decibel, and what is the loudest sound I can listen to before it hurts my ears?
What is a fossil?
What is a funicular railway?
What is a gene, and what is genetic engineering?
What is a glacier?
What is a heart bypass operation?
What is a keyhole satellite and what can it really spy on?
What is a light year?
What is a MiniDisc and how does it differ from a CD?
What is a nautical mile, and how does it differ from a normal mile and a kilometer?
What is a "nervous breakdown"?
What is a Nor'easter?
What is a packet?
What is a punkin chunkin, and what types of machines throw those pumpkins so far?
What is a remotely operated spy plane?
What is a Rice Krispy? What is it made out of and how do they make it?
What is a "smart card"?
What is a spider's silk made of?
What is a tank engine, as in "Thomas the Tank Engine"?
What is a "trade secret," and how is it different from a patent or copyright?
What is activated charcoal and why is it used in filters?
What is Aimster?
What is all the flickering when I try to record a television set picture with a video camera?
What is an appendix and what causes appendicitis?
What is an atomic clock and how does it work?
What is an Internet "cookie"?
What is an IP address?
What is an "IPO"?
What is an MRE?
What is an oscilloscope used to measure?
What is Astrology?
What is baking powder and how does it work?
What is carrageenan?
What is chewing gum made of?
What is déjà vu?
What is digital spread spectrum as used in cordless telephones?
What is dioxin?
What is dye-sublimation printing?
What is dynamite and how does it work?
What is fertilizer and why do plants need it?
What is foot-and-mouth disease?
What is Homeschooling?
What is in an antiperspirant that stops sweat?
What is in moth balls? Is it harmful to people?
What is Linux and why is it so popular?
What is low-power FM (LPFM)?
What is lucid dreaming?
What is lymph?
What is mayonnaise?
What is MIME?
What is narcolepsy?
What is OxyContin?
What is plywood? Why do people use it so much? What about oriented strand board (OSB)?
What is relative humidity and how does it affect how I feel outside?
What is Ricin?
What is root beer?
What is silica gel and why do I find little packets of it in everything I buy?
What is skeleton? Is it some sort of sledding sport?
What is sodium nitrate? It seems like lots of meats contain it. Is it in any way harmful?
What is "sunburn"?
What is superconductivity?
What is the big deal about milk? Why do people treat it like some kind of miracle drink?
What is the biggest animal ever to exist on Earth?
What is the Chandler wobble?
What is the churning sound I hear from my hard drive whenever it is retrieving data?
What is the crystaline substance found in disposable diapers?
What is the difference between a fluorescent light and a neon light?
What is the difference between a hardwood and a softwood?
What is the difference between a house, a mobile home, a condominium, a co-op and a townhouse?
What is the difference between a normal lead-acid car battery and a deep cycle battery?
What is the difference between a Pentium and a Celeron processor?
What is the difference between a turbocharger and a supercharger on a car's engine?
What is the difference between analog and digital cell phones?
What is the difference between CCD and CMOS image sensors in a digital camera?
What is the difference between DVD-audio and CDs?
What is the difference between espresso and drip coffee?
What is the difference between gasoline, kerosene, diesel fuel, etc.?
What is the difference between jelly, jam and preserves? And what exactly is Jell-O?
What is the difference between "soft money" and "hard money" campaign donations?
What is the difference between static RAM and dynamic RAM in my computer?
What is the Dow Jones Industrial Average?
What is the Flu?
What is the function of the fan in a refrigerator?
What is the Greenhouse Effect?
What is the heat index that the weatherperson talks about during the summer?
What is the ideal temperature for a refrigerator?
What is the problem with MTBE in gasoline?
What is the Strategic Petroleum Reserve?
What is the "unschooling" method of homeschooling?
What is the UV index and how is it calculated?
What is the world's fastest computer?
What is the Year 2038 problem?
What is this bumpy stuff on my ceiling that looks like popcorn or cottage cheese?
What is "top fuel," and how is it different from gasoline?
What is "virtual memory"?
What is white noise?
What makes glass transparent?
What makes NASCAR engines different from the engines in street cars?
What makes super glue so super?
What makes us yawn?
What makes you dizzy when you spin?
What makes your arms, legs and feet fall asleep?
What makes your knuckles pop?
What role do cleansers play in preventing acne?
What speed should I drive to get maximum fuel efficiency?
What would happen if I drilled a tunnel through the center of the Earth and jumped into it?
What would happen if you fired a gun on a train moving as fast as a bullet?
What's the deal with those 'quickie divorces' and Reno?
What's the fastest way to thaw a frozen turkey?
When a baseball player hits a home run, how do they know how far the ball traveled?
When an aerobatic plane flies upside down, how does the fuel get to the engine?
When buying gas appliances, why do you always have to specify whether you are using LPG or natural gas?
When I pay for my groceries by check, where does that check go?
When I put my car in park, what really keeps it from moving?
When I stand at the water's edge and look out over the ocean, how far away is the horizon?
When you delete files from your computer and after you empty it out of the Recycle Bin, where exactly does it go?
When you have an itch, what is happening under your skin?
Where are all the Internet domain names registered and maintained?
Where did the potato chip come from?
Where do bullets go when guns are fired straight up into the air?
Where do corn oil and corn syrup come from?
Where do salad dressings get their names?
Where do the names for prescription drugs come from?
Where does cork come from?
Where does the color come from in purple cabbage?
Where is the best place to sit when I go to the movies?
Where should I sit to get the best ride on a roller coaster?
Which came first, the chicken or the egg?
Which is better to use for a cable modem -- a USB connection or an Ethernet card?
Which is the tallest building in the world?
Which place on the planet was the first one to celebrate the new year on January 1, 2000?
While watching television shows sometimes you hear about medical examiners and other times you hear about coroners. Are they one and the same?
Who are the Duke of York, Duke of Kent, etc., and how did they get their titles?
Who came up with Mother's Day and why?
Why are acne treatment and anti-aging skincare products starting to use red tea?
Why are barns usually painted red?
Why are boogers sticky?
Why are cicadas so noisy?
Why are moths attracted to light?
Why are my digital photograph files so huge while photos on other Web sites are much smaller?
Why are my power bills so high? Which appliances use the most power?
Why are some national contests invalid in certain states and other countries?
Why are the insides of tunnels usually covered in ceramic tile?
Why are the keys arranged the way they are on a "QWERTY" keyboard?
Why are the waves on the U.S. West Coast larger than the waves on the East Coast?
Why are there more thunderstorms during the summer?
Why are there so many broken links in search engines?
Why are there so many different connectors on my DVD player?
Why are there so many different image formats on the Web?
Why are they replacing all of the toilets in my apartment?
Why are they replacing all of the traffic lights in my town?
Why can a trained athlete run a marathon, but a couch potato cannot run half a mile?
Why can boats made of steel float on water when a bar of steel sinks?
Why can I play some DVD movies, but not others, on my computer DVD-ROM?
Why can some medicines be taken as pills, while other medicines have to be injected with a needle?
Why can you hear the ocean when holding a seashell to your ear?
Why can't you tickle yourself?
Why do all FM radio stations end in an odd number?
Why do apples and potatoes turn brown when you slice them? How do you keep them from turning brown?
Why do batteries seem to go dead and then come back to life if you let them rest?
Why do big diesel engines and race car engines have such different horsepower ratings?
Why do brake lines have so many bends and loops?
Why do bridges ice before the rest of the highway?
Why do cats have whiskers?
Why do CDs reflect rainbow colors?
Why do CRTs contain lead?
Why do doors squeak? How do you solve the problem?
Why do eggs turn hard when you boil them?
Why do feet stink?
Why do golf balls have dimples?
Why do hurricanes seem to move as if they have a mind of their own, and why do they follow such peculiar tracks?
Why do I need an electrical adapter when I travel overseas?
Why do many foods have "High Altitude Cooking Instructions"?
Why do most zippers say "YKK" on the pull-tab?
Why do my ears pop when I dive in the deep end of the pool?
Why do my home and office seem to be infested with gnats in the summer? Where are they coming from?
Why do newspapers turn yellow over time?
Why do onions make you cry?
Why do people have red eyes in flash photographs?
Why do people tap on soda cans before opening them?
Why do some clothing items have a tag saying to wash the item before wearing?
Why do some dump trucks have extra, moveable axles?
Why do some engines use a dry sump oil system?
Why do some U.S. bills have a star instead of a letter at the end of the serial number?
Why do some Web sites include "www" in the URL while others don't?
Why do the entry doors to most homes open inward, while in most public buildings, the entry doors open outward?
Why do the plugs on some appliances have two prongs and others have three prongs?
Why do the two flat prongs on the plugs for electrical appliances have holes in them?
Why do they add iodine to table salt?
Why do they include jokers in a deck of cards?
Why do they use salt to melt ice on the road in the winter?
Why do those long, white clouds form behind jets flying high overhead?
Why do tools have "Drop Forged" stamped on them? What is drop forging?
Why do we celebrate Labor Day?
Why do we get headaches?
Why do we have eyebrows?
Why do Wint-O-Green Life Savers spark in the dark?
Why do you hear some radio stations better at night than in the day?
Why do you see "10 9 8 7 6 5 4 3 2 1" on the copyright page of many books?
Why does a mirror exchange left and right but not up and down?
Why does Alka Seltzer fizz?
Why does caffeine keep you awake?
Why does chocolate turn gray sometimes? Is it still safe to eat?
Why does hydrogen peroxide foam when you put it on a cut?
Why does it say 1-bit Dual D/A converter on my CD player?
Why does lettuce in a bag stay fresh longer than a head of lettuce?
Why does my computer need a battery?
Why does my manual transmission car make a loud whirring noise in reverse?
Why does my PC try to access my floppy disk drive when there is no diskette in it?
Why does my Web browser display some book-marked sites with a custom icon?
Why does smoke come from a fire?
Why does the hair on your arms stay short, while the hair on your head can grow very long?
Why does the moon look so much bigger when it is near the horizon?
Why does the phone still work when the electricity goes out?
Why does the sky get dark at night?
Why does the stock market use fractions?
Why does the weight come back so quickly once I stop dieting?
Why does your body temperature rise when you have a virus such as the flu?
Why doesn't gasoline burn cleanly?
Why doesn't paper money disintegrate when it gets washed in the washing machine?
Why doesn't the exhaust in a jet engine come out the front?
Why don't they use normal air in race car tires?
Why don't water towers freeze solid in the winter?
Why is a cell phone called a "cell" phone?
Why is a Popsicle called a "quiescently frozen confection"?
Why is a table saw quiet but a circular saw loud?
Why is April 1 a day to celebrate foolishness?
Why is cotton more absorbent than nylon?
Why is it called a hamburger when there is no ham in it?
Why is it colder at the top of a mountain than it is at sea level?
Why is it considered unlucky when the thirteenth day in a month falls on a Friday?
Why is it so hard to start a car in the winter?
Why is it that some Web pages seem to trap me so I can't get out?
Why is snow white?
Why is southern exposure so sought after when searching for an apartment in the city?
Why is the back of a refrigerator painted black?
Why is the keypad arrangement different for a telephone and a calculator?
Why is the sky blue?
Why is there a bulge in the exhaust pipe of my dirt bike?
Why is there a small hole on the top of spray-can lids?
Why shouldn't I go in swimming right after I eat?
Why the difference in speed with my cable modem?
Why was "911" chosen as the emergency phone number?
Will aspartame make me go blind?
Will we ever have space ships parked in our garages?
Would a balloon filled with vacuum instead of helium float?
You hear about celebrities having an annulment instead of a divorce – what is an annulment and how is it different from a divorce?
You often hear the expression, "If I had all the money in the world, I would..." My question is, how much money is "all the money in the world"?
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