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How Jackhammers Work
home.howstuffworks.com/jackhammers.htm
You've probably been irritated by jackhammer noise at some point, but have you ever stopped to think about these marvels of concrete-busting power? Without them, demolition would be a whole lot more difficult.
How do you sharpen a knife with sandpaper?
home.howstuffworks.com/sharpen-knife-sandpaper.htm
Some people prefer to sharpen a knife by moving the blade in circles against sandpaper, while others keep the blade at an angle. Learn how to sharpen a knife with sandpaper from this article.
The Pros and Cons of Placebos
health.howstuffworks.com/medicine/medication/pros-and-cons-of-placebos.htm
The pros and cons of placebos is good information to know for your overall health. Learn more about the pros and cons of placebos from HowStuffWorks.
What are some common symptoms of a shellfish allergy?
What are some common symptoms of a shellfish allergy? Learn some common symptoms of a shellfish allergy in this article.
How Amplifiers Work
electronics.howstuffworks.com/amplifier.htm
It may seem like an audio add-on, but without an amplifier, you'd never be able to hear the music on your CDs (your neighbors might be happier, but would you?). Find out how amps pump it up to 11.
Could You Dig a Tunnel Right Through the Center of Earth?
science.howstuffworks.com/environmental/earth/geophysics/question373.htm
Let's say you have a lunch date to make - and it's on the other side of the planet. Wouldn't it be convenient to pop down a hole through Earth's innards? But what would really happen if you did?
How to Get Rid of Hiccups
Have you ever tried holding your breath, drinking water upside down or any other bizarre method to get rid of the hiccups? Do any actually work?
Is premium gasoline really better for luxury vehicles?
auto.howstuffworks.com/premium-gas-luxury-vehicles.htm
Premium gasoline is often advised for luxury cars, but do you really need it? Learn whether premium gasoline really is better for luxury cars.
How Low-flow Toilets Flush Your Waste Without Wasting Water
home.howstuffworks.com/low-flow-toilet.htm
Low-flow toilets have improved significantly since they first came onto the market in the 1990s. Not only can they save tons of water, they also now can flush your waste with as little as a gallon of water.
Do houses really settle?
home.howstuffworks.com/home-improvement/repair/houses-settle.htm
Houses settle for a variety of reasons, and they exhibit a variety of signs that they're settling. Learn how houses settle and why they creak.