Starting in 1996, Alexa Internet has been donating their crawl data to the Internet Archive. Flowing in every day, these data are added to the Wayback Machine after an embargo period.
How NASCAR Safety Works - Imagine being behind the wheel of 3,400-pound, 750-horsepower race car. NASCAR racing is dangerous. Explore the safety features and devices that attempt to safeguard these 200-mph racers.
How Air Bags Work - Statistics show that air bags reduce the risk of dying in a head-on crash by 30 percent. Learn the science behind the air bag, what its problems are and where the research is heading.
How Seatbelts Work - Seatbelts save thousands of lives each year. How can a piece of fabric end up being the difference between life and death? What does a seatbelt actually do? Learn how seatbelts react in a crash.
