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Can you make a rocket engine using hydrogen peroxide and silver?
science.howstuffworks.com/question159.htm
At a drag race, I once saw a rocket car that was supposedly powered by spraying hydrogen peroxide on a silver mesh. The resultant reaction produced huge amounts of pure white smoke and apparently enough thrust to propel the car rapidly down the track. Does hydrogen peroxide really react with silver that way?
How did public fountains, like those in Rome, work without any type of motor to pump the water?
science.howstuffworks.com/engineering/structural/question33.htm
Rome is famous for having large public fountains that work without the use of any kind of mechanized pump. How were these fountains able to generate enough water pressure without a motor? Check out this article for the answer to this question.
How to Fix a Scratched DVD
electronics.howstuffworks.com/how-to-fix-scratched-dvd.htm
Your DVD disc got scratched and you want to know how to fix it. This article will tell you how to fix a scratched DVD disc.
Are drill bits universal?
home.howstuffworks.com/are-drill-bits-universal.htm
Universal drill bits are available to make light work of a range of jobs. Find out more about universal drill bits from this article.
Is your workplace tracking your computer activities?
computer.howstuffworks.com/workplace-surveillance.htm
If you're surfing the Internet at work, you may not be the only one who knows. Watching workers has become an industry unto itself. Find out exactly how companies are monitoring employees.
How Blu-ray Discs Work
electronics.howstuffworks.com/blu-ray.htm
Blu-ray discs provide huge storage capacity for high definition movies. Learn about Blu-ray discs, how they work, and Blu-ray competitors.
How Cryonics Works
science.howstuffworks.com/life/genetic/cryonics.htm
Dozens of people are frozen in cryogenic storage facilities, waiting to be revived when science is able to cure whatever killed them. But if they're dead, is revival from a frozen state even possible? Find out.
How to Restore Old Family Photos
electronics.howstuffworks.com/cameras-photography/tips/how-to-restore-old-family-photos.htm
Want to know how to restore old family photos? Visit HowStuffWorks to learn how to restore old family photos.
How Remote File Access Works
computer.howstuffworks.com/remote-file-access.htm
Remote file access lets you access your files anywhere, anytime, as long as you're connected to the Internet. Read more about remote file access.
How Location Tracking Works
electronics.howstuffworks.com/everyday-tech/location-tracking.htm
Location tracking can help find people in an emergency, but it can also make your whereabouts known to strangers. Learn about location tracking.