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How Digital Clocks Work
electronics.howstuffworks.com/gadgets/clocks-watches/digital-clock.htm
When you need to know the time, it's about a 50-50 chance you'll turn to some LEDs to find out. Ever wonder what goes on inside a digital clock or wristwatch? Find out about this basic digital technology -- and learn how to create your own digital timekeeper.
How Gas Compression-ignition Engines Work
auto.howstuffworks.com/gas-compression-ignition-engines.htm
HowStuffWorks talks to Mazda about the world's first gas compression-ignition engine and how the car company finally made the breakthrough.
10 Times Humanity Found the Answer (and Then Forgot)
history.howstuffworks.com/10-times-humanity-found-answer-and-then-forgot.htm
Could humanity be even farther ahead if we hadn't forgotten what we'd learned centuries ago? Learn about 10 times we forgot answers at HowStuffWorks.
How to Choose Aquarium Equipment
animals.howstuffworks.com/pets/choosing-aquarium-equipment.htm
The best way to learn how to keep a freshwater aquarium is to learn how to choose aquarium equipment. Find an introduction to aquarium equipment here.
How Fast Does Hair Grow?
health.howstuffworks.com/skin-care/hair-care/scalp-treatments/question251.htm
Anyone who's ever regretted a haircut has probably wondered how fast their hair will grow back. It's a good question, with a not-so-simple answer.
1961 Matchless G-12
auto.howstuffworks.com/1961-matchless-g-12.htm
The 1961 Matchless G-12 motorcycle was one of the last models offered bearing the Matchless name. See pictures and learn about the Matchless G-12.
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.
Could shape memory alloys harness heat energy from cars?
auto.howstuffworks.com/under-the-hood/trends-innovations/shape-memory-alloy.htm
Could Shape Memory Alloys Harness Heat Energy From Cars? Keep reading to learn about shape memory alloys and the future of transportation.
What human activities increase carbon dioxide in the atmosphere?
science.howstuffworks.com/environmental/green-science/human-activities-increase-carbon-dioxide.htm
Although a certain amount of carbon dioxide (CO2) occurs naturally in the Earth's atmosphere, there are several human activities that increase levels of the greenhouse gas.
We Say 'Once in a Blue Moon' But Blue Moons Aren't That Rare
people.howstuffworks.com/once-in-a-blue-moon.htm
If something happens on a rare occasion, you might have heard someone describe is as a "once in a blue moon" situation. The phrase describes occurrences that don't come around often, making them extraordinary.