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Home Runs & Hole-in-One
Statisticians Show that High Altitude Makes Hits Longer

Two mathematicians at the University of Northern Colorado are taking a fresh statistical look at the effects of elevation on hitting -- specifically at Coors Field in Denver, where the field is at a ... > watch video

Detecting Toxins: Saving Lives
Electrical Engineers Develop Microplasma Device to Detect Toxins

Electrical engineers have developed a new, portable lab that identifies chemicals by their unique color signatures. It is the first such device to be portable, allowing scientists to recognize ... > watch video

Harder Rain, More Snow
Meteorologists See Future of Increasingly Extreme Weather Events

While raising average global temperatures, climate change could also bring more snow, harder rain, or heat waves, meteorologists say. Computer models based on climate data from nine countries ... > watch video

Safer Water Worldwide
Industrial Toxicologists Develop Cost-Effective, Life-Saving Disinfection

Industrial toxicologists at a non-profit venture founded by Procter & Gamble developed PUR, a water purifier that combines a flocculant -- which separates particles and organisms from water -- ... > watch video

Turning Trash Into Power
Biological Engineers Generate Natural Gas with Bacteria

A new kind of waste digester uses two different strains of bacteria in different tanks. This would normally take place in the same environment, but microbiologists have now separated it into two ... > watch video

Cleaning Up Our Beaches
Environmental Engineers Link Contamination Levels to Tides

By washing decomposing plants into the ocean, high tides could contribute to the increased levels of Enterococci that are often responsible for beach closures. Scientists have now established a clear ... > watch video

Uncovering the Mysteries of the Seas
Are Bioluminescent Bacteria Behind Milky Seas Legend?

For centuries, sailors in the Indian Ocean have told stories of seas glowing with a dim, white light at night. Satellite images have now confirmed the appearance of what seem to be bioluminescent ... > watch video

Help for Thunder-Phobic Dogs
Veterinarians Show Consoling Dogs Does Not Relieve Their Panic

A new study shows that dogs can get very upset during thunderstorms, whether or not their owner holds them. The study measured the stress hormone cortisol to be up to three times normal levels while ... > watch video

Can Your Home Trigger Asthma?
Environmental Toxicologists Link Household Bacteria to Asthma

Scientists have found that chemicals called endotoxins can inflame airways and trigger asthma. Endotoxins are shed by bacteria in household dust. Experts say better home hygiene, washing bed linens ... > watch video

Is Your Water Safe?
Physical Chemists Devise Quick Spectrometry-Based Mercury Test

Physical chemists have created a new, cheap test to detect mercury, an element known to harm the brain, kidneys, heart, lungs and immune system. A gold nanorod absorbs mercury from a sample and, then ... > watch video

Sounds From the Sea
Acoustical Oceanographers Record Noises in the Deep

Manmade and natural sounds, from boat engines to rainfall, sound different below the sea surface. To study their impact of noise on marine life, scientists are submerging devices called Passive ... > watch video

The Mysterious Gravity Hill
Physicists Show "Antigravity" Mystery Spots Are Optical Illusions

At several hilly locations around the U.S., know as "gravity hills," objects such as cars left on neutral supposedly roll uphill, driven by unknown forces and against the force of gravity. Physicists ... > watch video

Blue Jean Insulation
Environmental Engineers Replace Chemical-Laden Building Insulation with Recycled Denim

A medical center is insulating its walls with recycled blue jeans instead of fiberglass. The new construction material is more environmentally friendly, as fiberglass contains formaldehyde, which is ... > watch video

Lightning: Fact or Fiction?
Physicists, Engineers Capture Lightning with Tethered Rockets

To study lightning, scientists use rockets connected to the ground by wires. They fire the rockets into clouds, triggering electrical discharges, and storing their power. They have found that ... > watch video

Real-Time Quake Detection
Seismologists Use Ultrasounds to Assess Quakes Faster

Using ultrasound imaging, seismologists can now determine the epicenter and magnitude of an earthquake quake within 10 to 20 minutes, precisely imaging which fault ruptured and where the rupture ... > watch video

Sun Darkens Electronics
Space Physicists and Atmospheric Scientists Can Now Predict Disruptions Caused by the Sun's Coronal Mass Ejections

Solar activity can wreak havoc in communications systems -- particularly during coronal mass ejections, when plumes of electrically charged particles hit earth's atmosphere. Scientists can now track ... > watch video

Is Your Drinking Water Contaminated?
New Software Helps Track the Path of Toxic Spills

Ecological engineers have developed software that can model the path of a toxic spill in waterways anywhere in the United States. The system can predict if and when a contaminant will reach a ... > watch video

Smart Trash Cans
RFID-Based Recycling Technology Makes Philadelphia Greener

Electrical engineers have developed a system that identifies a recycling bin by its household, using Radio Frequency IDentification (RFID) chips embedded in the bins. Bins are scanned and weighed ... > watch video

The Future of Underwater Robots
Engineering Students Build Next-Generation Bathyscaphe

Computer, electrical, and mechanical engineering students at the University of Florida have built a fully automated underwater vehicle. Driven by five thrusters and controlled by complex electronics, ... > watch video

Building Better Dams
Civil Engineers Learn from Dutch Flood Barrier System

A group of U.S. civil engineers and city officials went on a recent trip to the Netherlands -- a country much of which is below sea level -- to study the country's storm surge barrier system. The ... > watch video

 
 
 

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Summaries | Headlines

Growing More Rice With Less Water (October 18, 2007) -- Twenty years after its discovery in the forested mountains of Vietnam, local authorities here have agreed to establish new nature reserves to protect a critically endangered wild ox. Found only in ... > full story

Fishing Ban Protects Largest Coral Reef In The Philippines (October 18, 2007) -- Reef fish and other marine species can breathe easier with the introduction of a fishing ban around Apo Reef, the largest coral reef in the Philippines and the second largest contiguous reef in the ... > full story

Endangered Wild Ox Given Lifeline (October 18, 2007) -- Twenty years after its discovery in the forested mountains of Vietnam, local authorities here have agreed to establish new nature reserves to protect a critically endangered wild ox. Found only in ... > full story

Some Tropical Birds Depend Completely On Army Ants To Flush Out Prey (October 17, 2007) -- In the jungles of Central and South America, a group of birds has evolved a unique way of finding food -- by following hordes of army ants and letting them do all the work. Some of the birds rely ... > full story

Stronger EPA Leadership Needed To Improve Water Quality In Mississippi River, Report Says (October 17, 2007) -- The US Environmental Protection Agency must take a more aggressive leadership role in implementing the Clean Water Act if water quality in the Mississippi River and the northern Gulf of Mexico is to ... > full story

Hidden Costs Of Climate Change In US: Major, Nationwide, Uncounted (October 17, 2007) -- The total economic cost of climate change in the United States will be major and nationwide in scope. Climate change will affect all sectors of the national economy, especially agriculture, energy ... > full story

Ancient Fossil Evidence Supports Carbon Dioxide As Driver Of Global Warming (October 17, 2007) -- A new way to study Earth's past climate by analyzing the chemical composition of ancient marine fossils has been devised. The first published tests with the method further support the view that ... > full story

Upper Midwest Forests Are Losing Diversity, Complexity (October 17, 2007) -- Forests in the nation's Upper Midwest have changed greatly since the time of the early settlers. And more changes may be coming. Researchers found that none of the areas surveyed - from Minnesota to ... > full story

Giant Wave Experiment Reveals Poorly Understood Behavior Of Tsunamis (October 17, 2007) -- With the goal of saving lives and preventing environmental and structural damage during real tsunamis, Princeton Engineering researchers have been creating experimental mini-tsunamis. Existing models ... > full story

After Drought, Diversity Dries Up And Ponds All Look The Same (October 17, 2007) -- An ecologist has discovered that after ponds dry up through drought in a region, when they revive, the community of species in each pond tends to be very similar to one another, like so many suburban ... > full story

Switchgrass: Bridging Bioenergy And Conservation (October 17, 2007) -- An important part of the answer to the country's energy woes could be blowing in the prairie wind, according to one plant geneticist. He has spent the past 10 years breeding switchgrass, an ... > full story

What Is The World's Potential To Produce Biodiesel? (October 17, 2007) -- What do the countries of Thailand, Uruguay and Ghana have in common? They all could become leading producers of the emerging renewable fuel known as biodiesel, according to a new ... > full story

< more recent summaries | earlier summaries >

Solstice -- The summer solstice is an astronomical term regarding the position of the sun in relation to the celestial equator. The summer solstice is the day of the year with the longest daylight period and ... > full article

Mid-Atlantic United States flood of 2006 -- The Eastern United States flooding of June 2006 is a significant flooding event in much of Mid-Atlantic region of the eastern United States. The flooding was very widespread, affecting numerous ... > full article

Japanese beetle -- The Japanese Beetle (Popillia japonica) is a beetle about 1.5 cm (0.6 inches) long and 1 cm (0.4 inches) wide (smaller in Canada), with shiny copper-colored elytra and a shiny green top of the thorax ... > full article

Gypsy moth -- The gypsy moth, Lymantria dispar, is a moth of European origin. Gypsy moth larvae prefer hardwoods, but may feed on several hundred different species of trees and shrubs. In the East the gypsy moth ... > full article

Tree -- A tree can be defined as a large, perennial, woody plant. Though there is no set definition regarding minimum size, the term generally applies to plants at least 6 m (20 ft) high at maturity and, ... > full article

Agriculture -- Agriculture is the process of producing food, feed, fiber and many other desired products by the cultivation of certain plants and the raising of domesticated animals (livestock). The practice of ... > full article

Plant -- Plants are a major group of living things including familiar organisms such as trees, flowers, herbs, ferns, and mosses. About 350,000 species of plants, defined as seed plants, bryophytes, ferns and ... > full article

Fungus -- A fungus (plural fungi) is a eukaryotic organism that digests its food externally and absorbs the nutrient molecules into its cells. Fungi are very important economically: yeasts are responsible for ... > full article

Photosynthesis -- Photosynthesis, generally, is the synthesis of sugar from light, carbon dioxide and water, with oxygen as a waste product. It is arguably the most important biochemical pathway known; nearly all life ... > full article

Carbon dioxide -- Carbon dioxide is a chemical compound composed of one carbon and two oxygen atoms. It is often referred to by its formula CO2. It is present in the Earth's atmosphere at a low concentration and acts ... > full article

Earth's atmosphere -- Earth's atmosphere is a layer of gases surrounding the planet Earth and retained by the Earth's gravity. It contains roughly 78% nitrogen and 21% oxygen 0.97% argon and carbon dioxide 0.04% trace ... > full article

Solar radiation -- Solar radiation is radiant energy emitted by the sun, particularly electromagnetic energy. About half of the radiation is in the visible short-wave part of the electromagnetic spectrum. The other ... > full article

Ultraviolet -- Ultraviolet (UV) radiation is electromagnetic radiation of a wavelength shorter than that of the visible region, but longer than that of soft X-rays. The Sun emits ultraviolet radiation in the UVA, ... > full article

Solar wind -- A solar wind is a stream of charged particles (i.e., a plasma) which are ejected from the upper atmosphere of a star. When originating from stars other than the Earth's Sun, it is sometimes called a ... > full article

Greenhouse gas -- Greenhouse gases are components of the atmosphere that contribute to the greenhouse effect. Some greenhouse gases occur naturally in the atmosphere, while others result from human activities such as ... > full article

Greenhouse effect -- The greenhouse effect is the process in which the emission of infrared radiation by the atmosphere warms a planet's surface. The name comes from an analogy with the warming of air inside a greenhouse ... > full article

Methane -- Methane is a significant and plentiful fuel which is the principal component of natural gas. Burning one molecule of methane in the presence of oxygen releases one molecule of CO2 (carbon ... > full article

Nitrous oxide -- Nitrous oxide, also known as dinitrogen oxide or dinitrogen monoxide, is a chemical compound with chemical formula N2O. It is commonly known as laughing gas due to the exhilarating effects of ... > full article

Sulfur hexafluoride -- Sulfur hexafluoride (SF6) is a gas whose molecules consist of one sulfur atom and six fluorine atoms. It is colorless, odorless, non-toxic, and non-flammable, and is soluble in water and some other ... > full article

Haloalkane -- The haloalkanes (also known as Halogenoalkanes) are a group of chemical compounds, consisting of alkanes, such as methane or ethane, with one or more halogens linked, such as chlorine or fluorine, ... > full article

 
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