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How Patents Work
money.howstuffworks.com/patent.htm
Patents protect inventions and intellectual property from being copied. Learn about the uses of patents, the history of patents and about intellectual property law.
How Biological and Chemical Warfare Works
science.howstuffworks.com/biochem-war.htm
Chemical warfare and biological warfare is explained in this article. Learn about biological and chemical warfare.
How Performance-enhancing Drugs Work
entertainment.howstuffworks.com/athletic-drug-test.htm
Performance-enhancing drugs are the frequent subject of controversy in the sporting world. Learn about performance-enhancing drugs and doping practices.
How Human Reproduction Works
health.howstuffworks.com/pregnancy-and-parenting/pregnancy/conception/human-reproduction.htm
Reproduction is a basic drive in all animals, including humans. Think you know what human reproduction is all about? Discover the biology of sex.
Railroads of the 1920s
history.howstuffworks.com/american-history/railroads-of-the-1920s.htm
Railroads of the 1920s reflected a time of uncertainty in the industry at the time. Learn more about the railroads of the 1920s.
How Octopuses Work
animals.howstuffworks.com/marine-life/octopus.htm
The two centimeter male pillow octopus is dwarfed by his six-foot female pillow octopus mate. Learn more about the intriguing octopus.
How the Berlin Wall Worked
history.howstuffworks.com/historical-events/berlin-wall.htm
The Berlin Wall divided a country and a city, but it had a purpose. Examine Berlin Wall history and Berlin Wall facts and see Berlin Wall pictures.
Bipolar Disorder Overview
health.howstuffworks.com/mental-health/mental-disorders/bipolar-disorder.htm
Bipolar disorder, also called manic-depressive disorder, affects millions of Americans. Learn about mania, mood swings and how bipolar is treated.
How Seed Banks Work
science.howstuffworks.com/environmental/green-science/seed-bank.htm
Seed banks store our world's seeds, in case disaster wipes out a plant species. Find out how seed banks protect our future.
How Food Cravings Work
science.howstuffworks.com/innovation/edible-innovations/food-craving.htm
As you surf the Web, your mind is distracted by the thought of warm cookies floating in cold milk. Will this craving ever subside, or do you need chocolaty satisfaction ASAP?