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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.
10 iPad Apps for Teaching Kids About Science
computer.howstuffworks.com/tablets/10-ipad-apps-for-teaching-kids-about-science.htm
There are several iPad apps that teach kids about science. Take a look at our list of 10 iPad apps for teaching kids about science to get started.
5 Reasons Parasites Are Beneficial to Earth
science.howstuffworks.com/environmental/green-science/5-reasons-parasites-beneficial.htm
You probably think all parasites are disgusting little critters, but that's not always the case. Several are actually critical to the planet.
How Foreign Accent Syndrome Works
health.howstuffworks.com/mental-health/neurological-conditions/foreign-accent-syndrome.htm
Are patients actually developing a foreign accent, or has something else gone haywire? Learn about foreign accent syndrome at HowStuffWorks.
How Code Switching Works
people.howstuffworks.com/code-switching.htm
Code switching involves moving back and forth between two languages while in a conversation. Learn why code switching happens at HowStuffWorks.
How Walmart Works
money.howstuffworks.com/wal-mart.htm
Learn the key reasons that Walmart has been able to keep its prices low -- cutting-edge technology, a frugal corporate culture and a push to make suppliers sell merchandise at cheaper and cheaper prices.
How Octopuses Work
animals.howstuffworks.com/marine-life/octopus.htm
The two centimeter male pillow octopus is dwarfed by his six-foot female pillow octopus mate. Learn more about the intriguing octopus.
Bipolar Disorder Overview
health.howstuffworks.com/mental-health/mental-disorders/bipolar-disorder.htm
Bipolar disorder, also called manic-depressive disorder, affects millions of Americans. Learn about mania, mood swings and how bipolar is treated.
How Vitamin B6 Works
health.howstuffworks.com/wellness/food-nutrition/vitamin-supplements/vitamin-b6.htm
Vitamin B6, also known as pyridoxine, is found in every food in one form or another. Learn how much you should ingest and the best ways to get it.
How Sign Language Works
people.howstuffworks.com/sign-language.htm
Sign language has been used for centuries as a way to communicate with the deaf. Learn about sign language and see pictures of the sign language alphabet.