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Behind the X Prize
science.howstuffworks.com/x-prize.htm
We know who won - top-runner SpaceShipOne. We know what the team receives for that accomplishment: $10 million and an obscenely gigantic trophy. But what about the story behind the contest? Learn about the rules, restrictions, red tape, test crashes, successful launches and the technological innovations that may get you into sub-orbit sooner than you think.
How Zippers Work
science.howstuffworks.com/innovation/everyday-innovations/zipper.htm
Better than buttons? Maybe. Less time-consuming than laces? Definitely. As far as fastening mechanisms go, the zipper is a work of art. Learn exactly what makes up a zipper and how it all fits together so perfectly.
Why are the insides of tunnels usually covered in ceramic tile?
science.howstuffworks.com/engineering/civil/question674.htm
I've noticed that the insides of road and subway tunnels are usually covered in ceramic tile. Is there any particular reason for this or is it simply convention?
Are there more floods now than there used to be?
science.howstuffworks.com/nature/natural-disasters/question665.htm
I read 'How Floods Work,' but I still have a question: Why are there so many more floods now? It seems like there are floods all the time, and it didn't used to be that way. Is it raining more?
Is there any rhyme or reason to how U.S. interstate highways are numbered?
science.howstuffworks.com/engineering/civil/question656.htm
Is there any rhyme or reason to how U.S. interstate highways are numbered?
How Caterpillar Skid Steer Loaders & Multi Terrain Loaders Work
science.howstuffworks.com/transport/engines-equipment/skid-steer.htm
You know those loaders used in construction and landscaping that dig up and pick up EVERYTHING? Learn how these incredible machines work!
Why Do Bridges Ice Before the Rest of the Highway?
science.howstuffworks.com/nature/climate-weather/atmospheric/question566.htm
I've noticed signs on the highway that warn "Bridge Ices Before Road." What causes bridges to ice before the rest of the highway?
Why Is Snow White?
science.howstuffworks.com/nature/climate-weather/atmospheric/question524.htm
Why is snow white? It's frozen water, and water isn't white, it's clear. Learn why snow is white by examining the frequencies of light and how they're absorbed.
How Gears Work
science.howstuffworks.com/transport/engines-equipment/gear.htm
If a device has a motor, engine or spring, it probably has gears! But what do gears do, exactly, and how do they do it?
Why can't you tickle yourself?
science.howstuffworks.com/life/inside-the-mind/human-brain/question511.htm
Tickling yourself is a lot harder than it seems. Have you ever wondered why you cannot tickle yourself? Find out why self-tickling seems impossible.