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How Turn Signals Work
auto.howstuffworks.com/turn-signal.htm
To most drivers, turn signals seem pretty simple: There's a lever that makes your signal lights flash. But there's actually some cool technology at work. Find out how this under-used device operates.
How Photonics Masts Will Work
science.howstuffworks.com/photonic-mast.htm
The U.S. Navy's new subs will use photonics masts instead of periscopes. Learn how these imaging devices will work.
How Fuel Gauges Work
auto.howstuffworks.com/fuel-gauge.htm
Has your fuel gauge ever read "empty" when you know there are gallons left in your auto's tank? Learn all about how fuel gauges work and how to know when "Empty" means "No seriously, get gas."
What was the Prison Project?
people.howstuffworks.com/prison-project.htm
The Prison Project enabled middle school students to communicate with prisoners via the Internet. Find out more about the Prison Project and its purpose.
What is the DARPA Urban Challenge?
auto.howstuffworks.com/under-the-hood/trends-innovations/darpa-urban-challenge.htm
What is the DARPA Urban Challenge? Learn about the DARPA Urban Challenge and find out why we might want driverless cars in the first place.
Stegosaurus: Body Like a Bus, Tiny Little Brain
animals.howstuffworks.com/dinosaurs/stegosaurus.htm
Stegosaurus, an herbivorous dinosaur from 149 million years ago, walked on four legs, had a long, beak-tipped skull, a row of spikes adorning its tail and a pea-sized brain.
Why do the eyes in paintings seem to follow you sometimes?
entertainment.howstuffworks.com/arts/artwork/eyes-in-painting-follow.htm
The eyes in paintings, such as the Mona Lisa, seem to follow you wherever you go, but what causes this? Learn about the eyes in paintings.
How Motion-powered Electronics Work
science.howstuffworks.com/environmental/green-tech/sustainable/motion-powered-electronics.htm
Motion-powered electronics are discussed in this article from HowStuffWorks. Learn about motion-powered electronics.
How can you print without ink?
computer.howstuffworks.com/print-without-ink.htm
Is it possible to print without ink? Companies are working on new technology that would enable inkless printing. Learn how to print without ink.
What Is a Quartz Watch?
electronics.howstuffworks.com/gadgets/clocks-watches/quartz-watch.htm
Quartz watches actually use quartz crystals to keep time. How can they be so accurate? Find out why quartz makes such a great time keeper.