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Does a deer have exactly enough brains to tan its own hide?
animals.howstuffworks.com/mammals/deer-tan-own-hide.htm
Tanning with deer brain might seem odd, but some people prefer this leather-making tradition. Learn why tanning with deer brain can soften leather.
Does trickle-down economics apply to a down market?
money.howstuffworks.com/trickle-down-in-down-market.htm
Applying trickle down in a down market can seem senseless to people -- they're after a quick fix. Read about applications of trickle down in a down market.
How does a three-way light bulb work?
home.howstuffworks.com/three-way-bulb.htm
A three-way bulb has two filaments, which allows the light to be turned on at different light levels. Learn about a three-way bulb.
What Is a 5th Wheel and How Does It Work?
auto.howstuffworks.com/auto-parts/towing/equipment/protective-towing/5th-wheel-safety-systems.htm
5th wheel safety systems are designed to save your vehicle from damage in case of a towing mishap. Read about 5th wheel towing systems at HowStuffWorks.
What does it mean when a barometer is rising or falling?
science.howstuffworks.com/nature/climate-weather/atmospheric/barometer.htm
A barometer is an instrument that is used to predict the weather. Learn about barometers in this article.
What does the 'pursuit of happiness' mean in the Declaration of Independence?
science.howstuffworks.com/life/inside-the-mind/emotions/pursuit-of-happiness-meaning.htm
What exactly in the pursuit of happiness? Stated in the Declaration of Independence, it has some mystery behind it. Read about the pursuit of happiness.
Why does caffeine keep you awake?
health.howstuffworks.com/wellness/drugs-alcohol/caffeine-awake.htm
Caffeine effects include an increase in your heart rate and an increased level of alertness. Learn more about some of the different caffeine effects.
Why does it take my eyes several minutes to adjust to darkness?
health.howstuffworks.com/human-body/systems/eye/eyes-adjust-darkness.htm
At night, your eyes adjust to darkness after several minutes. Do you know why it takes that long? Take a look at how your eyes adjust to darkness.
How Does a Hippo Make Its Own Sunscreen?
animals.howstuffworks.com/mammals/hippo-sunscreen.htm
Hippo sunscreen is actually the thick sweat that hippos produce to protect their skin from the sun. Learn why red hippo sunscreen is such powerful stuff.
Does light attract sharks?
animals.howstuffworks.com/fish/sharks/light-attract-sharks.htm
Light attracting sharks is a theory that suggests sharks are drawn by bright, shiny, yellow and light-colored objects. Learn about light and sharks.