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Why Snakebite Antivenom Is So Astronomically Expensive
health.howstuffworks.com/medicine/medication/why-snakebite-antivenom-expensive.htm
In the United States, a single vial of snakebite antivenom can cost thousands of dollars. HowStuffWorks looks at the reasons behind the high price.
'Pilot's Glory': Why a Rainbow Encircles an Airplane Shadow on Clouds
Very specific atmospheric conditions and just the right perspective are necessary to see the phenomenon.
Ghost Tape No. 10: The Haunted Mixtape of the Vietnam War
science.howstuffworks.com/ghost-tape-no-10-haunted-mixtape-the-vietnam-war.htm
In one of its more bizarre moments, the U.S. Army created voice tapes of allegedly wandering souls to depress Viet Cong morale.
Space Lettuce Is Out of This World Good
science.howstuffworks.com/space-lettuce.htm
Lettuce has key nutrients that give both astronauts and Earth-dwellers alike a physical and psychological boost. And the lettuce grown in space is no less nutritious than the Earth-bound variety.
The Racial History of the Term 'Grandfathered In'
history.howstuffworks.com/american-civil-war/grandfathered-in.htm
While it often evokes the image of a gray-haired, old gentleman let off the hook because of his age, the intention behind the term 'grandfathered' came from origins far more sinister.
Why do elbows itch?
health.howstuffworks.com/human-body/parts/why-do-elbows-itch.htm
Itchy elbows can be really annoying. Learn what causes your elbows to itch at HowStuffWorks.
Why do antibiotics make you sensitive to the sun?
health.howstuffworks.com/medicine/medication/antibiotics-sensitive-to-sun.htm
Sun sensitivity is a common side effect of antibiotics. Find out why antibiotics make you sensitive to the sun at HowStuffWorks.
Why does salt prevent food from spoiling?
recipes.howstuffworks.com/tools-and-techniques/salt-prevent-food-from-spoiling.htm
Salt has prevented foods from spoiling and kept entire civilizations alive as a result. Learn how salt preserves food at HowStuffWorks.
Why is it considered unlucky to leave a hat on the bed?
people.howstuffworks.com/unlucky-to-leave-hat-on-bed.htm
If you're one of the clueless citizens who's laid a hat on a bed, welcome to the club. Apparently, we've all doomed ourselves to evil spirits as guests. According to this superstition, anyway.
The Mystique of the Lucky Horseshoe: History and Beliefs
people.howstuffworks.com/horseshoes-lucky.htm
Lucky horseshoes are meant to bring good fortune. But which way are you supposed to hang it, and why are there seven holes in a horseshoe? Read on to find out.