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Cobalt: Essential for Batteries and Bright Blues
science.howstuffworks.com/environmental/earth/geology/cobalt.htm
Cobalt is associated with the color blue, but it's so needed for rechargeable batteries that the U.S. put it on the list of minerals it can't live without.
Why doesn't tear-free shampoo sting your eyes?
science.howstuffworks.com/science-vs-myth/everyday-myths/tear-free-shampoo-not-sting-eyes.htm
Some say the real reason "no tear" shampoo works is that it has Novocain in it, desensitizing babies to its sting. Fact or urban legend?
How Much Do You Really Know About HVAC?
play.howstuffworks.com/quiz/how-much-do-you-know-hvac
HVAC professionals help us stay warm or cold on the days we need it most. Think you can keep your cool on this quiz? Take it to find out!
What Car Should I Buy?
play.howstuffworks.com/quiz/what-car-should-i-buy
Have you been shopping for a fresh new ride to replace your jalopy but are uncertain what to buy? Instead of wasting your time scouring sites like Carvana, why don't you take our quiz and let us predict what new car you should buy! Who knows, you might be a Camry person after all!
How Solar-powered Refrigerators Work
home.howstuffworks.com/solar-powered-refrigerator.htm
Solar-powered refrigerators may sound like something of the future, but the SunDanzer is already on the market. Learn about solar-powered refrigerators.
How the International Space Station Works
science.howstuffworks.com/international-space-station.htm
In 1984, President Ronald Reagan had a vision for a permanently inhabited space station. Today that vision is a reality we know as the International Space Station.
How the Jaws of Life Work
auto.howstuffworks.com/car-driving-safety/accidents-hazardous-conditions/jaws-life.htm
The "Jaws of Life" is a huge tool used to free people from mangled cars and burning or collapsed buildings. Learn about this amazingly powerful machine and how it saves lives.
How Radio Controlled Toys Work
science.howstuffworks.com/rc-toy.htm
RC toys come in many varieties from cars to robots. Learn about the parts of a radio controlled toy and see how RC toys operate without the aid of wires.
How California's Power Crisis Works
science.howstuffworks.com/environmental/conservation/issues/california-power.htm
Another series of rolling blackouts are hitting California. Learn why this is happening and how it affects you.
How Electronic Ink Works
electronics.howstuffworks.com/gadgets/high-tech-gadgets/e-ink.htm
Electronic ink promises to be an amazing, breakthrough technology that we will all be using in five years -- it will completely change books and newspapers!