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How Backscatter X-ray Systems Work
electronics.howstuffworks.com/gadgets/high-tech-gadgets/backscatter-x-ray.htm
Do you know how backscatter X-ray systems work? Find out how backscatter X-ray systems work in this article from HowStuffWorks.
How do they superimpose the first-down line onto the field on televised football games?
entertainment.howstuffworks.com/question225.htm
When a football game is on television, how do the broadcast stations superimpose the first-down line across the TV screen without it appearing on the uniforms of the players?
Will orbital chaos cause Earth, Venus and Mars to collide?
science.howstuffworks.com/earth-venus-mars-collide.htm
Will orbital chaos collide Earth, Venus and Mars? Read about the possibility of Earth, Venus and Mars colliding if their orbits go awry.
10 Ways Insurance Agents Spot Fraudulent Claims
Insurance fraud scams, including staging accidents and creating fake titles for nonexistent cars, cost Americans billions of dollars a year. How do savvy insurance agents suss them out?
Medical Uses for the Turkey Tail Mushroom
The turkey tail mushroom has elements that strengthen the immune system and reduce susceptibility to infections. Learn about this healing agent.
Tattoos May Be Good for Your Health
health.howstuffworks.com/skin-care/beauty/skin-and-lifestyle/tattoos-may-be-good-your-health.htm
Having a lot of tattoos could mean you have a healthy immune system. HowStuffWorks Now explains why.
How to Repair Small Engines
home.howstuffworks.com/home-improvement/repair/how-to-repair-small-engines.htm
Small engines serve as useful home tools and power our toys. To keep them operating efficiently, an owner should know how these engines work and what to do when they don't. Learn more.
How Does an Oral HIV Test Work?
health.howstuffworks.com/medicine/tests-treatment/oral-hiv-test.htm
A recently FDA-approved rapid HIV test (one that doesn't have to be sent to a laboratory for processing) can use blood, serum or oral fluids with equal accuracy.
Why the 1933 London Tube Map Is Still Considered Design Genius
science.howstuffworks.com/engineering/civil/london-tube-map.htm
Before 1933, getting around London on the massively confusing Tube system was a nightmare. That's when draftsman Harry Beck stepped in and revolutionized map design.
What causes allergic reactions?
The source of allergies is not mysterious. Simply put, it is the rejection of a non-dangerous substance by your body's immune system. Learn more.