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How Combination Locks Work
home.howstuffworks.com/home-improvement/home-diy/combination-lock.htm
Combination locks use wheel packs to set the combination inside the lock. Learn about combination locks and see pictures of the inside of a combination lock.
Power Drill
home.howstuffworks.com/power-drill.htm
A power drill features an electric motor that rotates a drill bit to make a hole. Learn all about this powerful all-purpose tool here.
How Long Does it Take To Charge an Electric Car?
auto.howstuffworks.com/how-long-does-it-take-to-charge-an-electric-car.htm
Coming soon to a garage near you: Electric vehicles! Big-name auto makers like Nissan, Ford, and Mitsubishi are scheduled for major EV releases in the next year or so, while small car makers are busy building small electric vehicles for short trips around the neighborhood. Learn more about how long it takes to charge an electric car.
How does natural gas drilling work?
science.howstuffworks.com/environmental/energy/natural-gas-drilling.htm
When you switch on your furnace or turn on your gas stove and use the heat from that little blue flame, you're doing what people in 62 million other American homes do every day, too: You're using natural gas.
What Are the Odds You've Met a Psychopath?
health.howstuffworks.com/mental-health/human-nature/behavior/what-are-odds-youve-met-psychopath.htm
Psychopathy isn't as rare as you may think. Find out where you may have rubbed elbows with a psychopath at HowStuffWorks Now.
Newly Discovered Crane Fly Species: Tiny Wings, Double-barreled Penis
An Australian scientist has found an unusual species of crane fly with special properties. HowStuffWorks Now investigates.
The Science Behind Your Cat's Catnip Craze
science.howstuffworks.com/life/botany/science-behind-cats-catnip-craze.htm
Researchers are studying the chemistry behind what makes cats go crazy for catnip. And whether or not the chemical compound could have medicinal benefits for treating diseases like cancer.
Black Chickens Are Beautiful - Inside and Out
animals.howstuffworks.com/animal-facts/ayam-cemani-chicken.htm
The magic of a blacker-than-black chicken like the Ayam Cemani is in its genetics.
What Is Washing Soda and How Is It Used?
home.howstuffworks.com/home-improvement/household-hints-tips/cleaning-organizing/washing-soda.htm
Washing soda is more basic (as opposed to alkaline) and is stronger than baking soda, so it can be used for everything from tough stains to clogged drains.
Kummakivi, Finland's Balancing Rock, Seems to Defy the Laws of Physics
science.howstuffworks.com/kummakivi.htm
It looks completely impossible that this rock should stand, balanced as it is, but it has not moved since the last ice age.