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How Prenatal Testing Works
health.howstuffworks.com/pregnancy-and-parenting/pregnancy/issues/prenatal-testing.htm
During a pregnancy, different kinds of prenatal testing are an important part of the process. See how prenatal testing protects both the mother and child.
How Movie Projectors Work
entertainment.howstuffworks.com/movie-projector.htm
When you see a movie in the theater, do you notice the projector? Without it, you'd be staring at a blank screen. Enter the projection booth and learn what it takes to show a movie.
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 Acoustic Levitation Works
science.howstuffworks.com/acoustic-levitation.htm
The idea that something so intangible as acoustic levitation can lift objects may seem unbelievable, but it's a real phenomenon.
How HD-DVD Works
electronics.howstuffworks.com/hd-dvd.htm
HD-DVD was designed for the storage of high-definition video. Find out about HD-DVD, how HD-DVD players work and see how HD-DVD compared to Blu-Ray.
10 Effective Solutions: How to Keep Bugs Out of House
home.howstuffworks.com/home-improvement/household-safety/10-ways-to-bug-proof-your-home.htm
Whether you're frightened or fascinated by insects, you can probably agree they don't belong in your home. But how can you keep something so small from worming its way into your walls?
The Predator Drone: A Pioneering Force in Modern Warfare
science.howstuffworks.com/predator.htm
The Predator Unmanned Aerial Vehicle exemplifies the military trend toward high-tech, low-risk equipment. This remotely-operated spy plane offers the most bang for the human-safety buck.
Skin Cancer Overview
health.howstuffworks.com/skin-care/problems/medical/skin-cancer.htm
Skin cancer is a serious health concern. Learn more about how skin cancer works at HowStuffWorks.
How Denim Insulation Works
home.howstuffworks.com/denim-insulation.htm
Do you love your jeans so much that you want them to stay in your house forever and ever? Then you're going to love denim insulation, the blue way to go green.
Interesting Science Facts Confirmed and Debunked
science.howstuffworks.com/science-vs-myth/everyday-myths/10-false-science-facts.htm
When reeling off dubious facts (like lemmings plunging off cliffs en masse), there's no better retort to a skeptical audience than calmly explaining that it's not just true - it's science...right?