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What's the difference between backscatter machines and millimeter wave scanners?
science.howstuffworks.com/backscatter-machines-vs-millimeter-wave-scanners.htm
Nope, these advanced imaging technologies are not the same. So whether you're concerned about privacy, safety or time as you're shuffling through the airport security line, we can tell you how these two types of scanners stack up against each other.
Can you wash SPF-treated clothes?
Sunscreen is no longer your only option for deflecting the sun's UV rays. Now, you can get protection from your clothes, too. But how do you wash them?
How CAT Scans Work
science.howstuffworks.com/cat-scan.htm
CAT scans take X-ray imaging to a whole new level. Find out how a CAT scan machine uses "slices" to form a 3-D computer model of a patient's insides.
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.
Researchers Find First (Potential) Planet Outside the Milky Way
science.howstuffworks.com/first-planet-outside-milky-way-news.htm
Using the Chandra X-ray Observatory, a team of scientists discovered what could very well be the first exoplanet outside the Milky Way. It's massive and might even orbit a black hole.
Yellow Coneflower, Perennial Black-Eyed Susan
home.howstuffworks.com/yellow-coneflower-perennial-black-eyed-susan.htm
Yellow coneflowers, or black-eyed Susans, are an American wildflower. Their daisylike ray flowers and purple-brown disk flowers bloom in midsummer on to frost and are perfect for cutting. Learn more about these pretty perennials.
How Safe is Spray Tanning?
health.howstuffworks.com/skin-care/beauty/sun-care/how-safe-is-spray-tanning.htm
I remember when I first learned about spray tanning. I was thrilled. No longer would I need to worry about the rays outside because I could get that glowing tan in a bottle.
Which Famous Photographer Matches Your Own Photography Style?
play.howstuffworks.com/quiz/which-famous-photographer-matches-your-own-photography-style
Are your photography skills more whimsical like "Weegee" or are you a "Man Ray" of fashionable sunshine in the portrait realm? Whatever the "camera" case may be, this "exposure" quiz will match you to a mega-famous photographer!
What causes the faint horizontal lines on my monitor?
computer.howstuffworks.com/question406.htm
What causes the faint horizontal lines I can see on my monitor?
Why has the World Trade Center memorial been delayed?
people.howstuffworks.com/wtc-memorial-delay.htm
Learn why, or whether, the WTC memorial project is behind schedule.