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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.
How To Drill a Hole in Glass
home.howstuffworks.com/drill-glass.htm
Always take the proper safety precautions and use the right drill bit when you drill through glass. Learn about how to drill glass from this article.
The Mule Outperforms Both Its Horse Mom and Donkey Dad
animals.howstuffworks.com/mammals/mule.htm
Since many of us no longer live in small agricultural societies, while you might be familiar with the idea of a mule, you might not know about the specifics of the actual animal.
Top 10 Ancient Chinese Inventions
science.howstuffworks.com/innovation/inventions/10-ancient-chinese-inventions.htm
The ancient Chinese brought us many great innovations, including some that we take for granted in the modern world. Let's examine 10 of ancient China's greatest inventions.
Was Hitler Building Advanced UFOs in Antarctica?
history.howstuffworks.com/history-vs-myth/was-hitler-building-advanced-ufos-in-antarctica.htm
U.S. pilots called them foo fighters, but were these UFOs weapons of war being developed by the Nazis? Stuff They Don't Want You To Know investigates.
Cyanosis: Why Your Fingers Turn Blue
health.howstuffworks.com/diseases-conditions/cardiovascular/heart/cyanosis.htm
It might be OK for a Smurf to have blue fingers, but for the rest of us, it's something you don't want to see. Cyanosis is usually a sign of a bigger health problem.
National Historic Vehicle Register Honors Elite Cars
auto.howstuffworks.com/national-historic-vehicle-register-honors-elite-cars.htm
The Library of Congress archives all things historical in the U.S. That includes 24 select cars. HowStuffWorks looks at why and how they're chosen.
Is It Unlawful to Remove the Tag From Your Mattress?
money.howstuffworks.com/removed-mattress-tag.htm
Most of us have heard that we're not supposed to remove the tags from our mattresses or pillows because it violates some kind of law. But what's the real story?
Did cars ever have external combustion engines?
auto.howstuffworks.com/did-cars-ever-have-external-combustion-engines.htm
Did cars ever have external combustion engines? Find out if external combustion engines have ever being used to power automobiles at HowStuffWorks.
Aspirin 101
health.howstuffworks.com/medicine/medication/aspirin.htm
Aspirin and its relatives are used to relieve all kinds of ailments. Learn about the history and chemistry of aspirin, how aspirin works against pain and aspirin side effects.