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10 Things You Didn't Know About Einstein
The man who had some theories about relativity was also an eccentric who gleefully eschewed socks, dodged German military service and spurned social conventions.
How Bitcoin Works
money.howstuffworks.com/bitcoin.htm
Digital currency could shape all future commerce. Find out about how Bitcoin is paving the way for virtual money.
How Ramjets Work
science.howstuffworks.com/transport/engines-equipment/ramjet.htm
Imagine whipping through the sky at thousands of miles per hour. This special type of jet engine can do exactly that.
How do 30 pounds of air in your tires hold up 2 tons of car?
auto.howstuffworks.com/question506.htm
How do 30 pounds of air in your tires hold up 2 tons of car?
Why does caffeine keep you awake?
health.howstuffworks.com/wellness/drugs-alcohol/caffeine-awake.htm
Caffeine effects include an increase in your heart rate and an increased level of alertness. Learn more about some of the different caffeine effects.
What Causes Seasons? Earth's Tilt and Orbit
science.howstuffworks.com/nature/climate-weather/atmospheric/question165.htm
What causes the seasons? Why are the seasons reversed in the Northern and Southern Hemispheres? And if the Earth moves in an elliptical orbit around the Sun, why don't we have two summers and two winters every year?
What is an atomic clock and how does it work?
science.howstuffworks.com/question40.htm
Many ads for new clocks advertise their ability to automatically synchronize themselves with the atomic clock in Boulder, Colorado. This atomic clock is more precise because it uses the frequencies of atoms as its resonator.
If an Astronaut took a Pet Bird Into Space, Would it Fly?
animals.howstuffworks.com/animal-facts/birds-in-space.htm
Birds in space would actually do quite well because their wings would help stabilize them as they float through space. Learn about birds in space.
Why do batteries seem to go dead and then come back to life if you let them rest?
electronics.howstuffworks.com/everyday-tech/question390.htm
Why do batteries seem to go dead and then come back to life if you let them rest? Learn about dead batteries and battery life.
How Did Earth Day Start?
people.howstuffworks.com/culture-traditions/holidays-other/earth-day-qotd.htm
Every April 22, millions of people around the world gather to celebrate Earth Day. Who started Earth Day and when?