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How Corrective Lenses Work
science.howstuffworks.com/innovation/everyday-innovations/lens.htm
Eyeglasses are one of the most common sights in the world. Learn what goes into creating the lenses and how to read an eyeglass prescription.
How Night Vision Works
electronics.howstuffworks.com/gadgets/high-tech-gadgets/nightvision.htm
Most of us instinctively think of darkness as a way to hide. Night vision has changed all that. So, how can you see someone standing over 200 yards away on a pitch-black night? Find out.
How Blowtorches Work
home.howstuffworks.com/blowtorch.htm
Blowtorches produce an exceptionally hot flame and harnesses that heat to mold and cut metal. Learn how the blowtorch revolutionized welding.
How Houseboats Work
home.howstuffworks.com/houseboat.htm
Houseboats aren't the most common place to live, but they're an interesting alternative. Learn about houseboat living, how houseboats float and more.
How Private Investigators Work
money.howstuffworks.com/private-investigator.htm
Thanks to popular culture, many people have a clear mental image of the stereotypical private investigator. Find out whether the stereotypes about private investigators are true.
How to Change Brake Pads
auto.howstuffworks.com/auto-parts/brakes/brake-repair/change-brake-pads.htm
If it's time to change brake pads, you don't necessarily have to go to a mechanic. Let HowStuffWorks explain how to change brake pads.
Nursing Homes Overview
health.howstuffworks.com/wellness/aging/elder-care/nursing-home.htm
Nursing homes have often have image problems and have dealt with various issues. Learn how nursing homes work, types of nursing homes, services and more.
What is China's one-child policy?
people.howstuffworks.com/one-child-policy.htm
What is China's one-child policy? Learn about China's one-child policy, implemented in 1979 to reduce the population and stimulate economic growth.
How Rocket Engines Work
science.howstuffworks.com/rocket.htm
Rocket engines harness the energy to get a spaceship off the ground. Learn about solid-fuel rocket engines, liquid-propellant rockets and the future of rocket engines.
How Nanowires Work
science.howstuffworks.com/nanowire.htm
Nanowires are incredibly thin structures that have an incredible length-to-width ratio. Learn about nanowires and how nanowires are created.