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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.
Pennsylvania’s Most Haunted Places
history.howstuffworks.com/historical-events/haunted-places-in-pennsylvania.htm
Discover the most haunted places in Pennsylvania, from eerie ghost towns to haunted asylums. Explore chilling legends and real paranormal encounters!
10 Classic Swimming Pool Games
entertainment.howstuffworks.com/backyard-fun-games/10-swimming-pool-games.htm
Remember how much fun you had as a kid swimming in the pool with your friends and playing Marco Polo or sharks and minnows? What are some other classic pool games out there?
How Geniuses Work
people.howstuffworks.com/genius.htm
Without a doubt, Einstein was a genius. They're easy to spot, but it's difficult to explain exactly what makes a person a genius. Learn why.
How to Answer Difficult Questions From Children
Answering difficult questions from your children is a matter of balancing the honesty they deserve with their youth and inexperience. Find out how.
Harley-Davidson History
auto.howstuffworks.com/harley-davidson-history.htm
Harley-Davidson history spans over a century of innovation and excellence in motorcycle production. Learn about the history of Harley-Davidson.
How to Repair Windows
home.howstuffworks.com/home-improvement/repair/how-to-repair-windows.htm
Windows are a major source of heat-loss in most homes. They also may stick shut when they're painted or swell shut from humidity. Learn tips on how to keep your windows working properly.
How Master Cylinders and Combination Valves Work
auto.howstuffworks.com/auto-parts/brakes/brake-types/master-brake.htm
The master cylinder provides the pressure that engages your car brakes. Learn how the master cylinder works with the combination valve to make sure you can brake safely.
How Towing Braking Systems Work
auto.howstuffworks.com/auto-parts/towing/equipment/protective-towing/towing-braking-systems.htm
Towing braking systems provide RV drivers the peace of mind that they deserve. Learn all about towing braking systems at HowStuffWorks.
How Gear Ratios Work
auto.howstuffworks.com/gears.htm
Gear ratios are what allow a car to reach a high rate of speed or climb a steep hill. Learn about gear ratios see examples of how gear ratios function.