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20 Black and White Birds and Where to Spot Them
animals.howstuffworks.com/birds/black-and-white-birds.htm
Black and white birds may not be as vibrant as bright-colored birds, but in many parts of the world, birds such as magpies symbolize luck, intelligence or mystery. Black-and-white seabirds such as penguins and razorbills have also become icons of climate change awareness.
How Reverse Osmosis Works
science.howstuffworks.com/reverse-osmosis.htm
How does reverse osmosis work? Find out how a semipermeable membrane can act as a filter for some particles while letting others pass through.
How Labor Unions Work
money.howstuffworks.com/labor-union.htm
Labor unions lobby for better working conditions, hours, pay and benefits. Learn about labor unions and the role they play in securing workers' rights.
Top 10 Things That Devalue Your House
home.howstuffworks.com/top-5-devalue-house.htm
Things that devalue the house include paint colors and your neighborhood. Learn more about the things that devalue the house.
How Hackers Work
computer.howstuffworks.com/hacker.htm
Hackers with bad intentions make up a surprisingly small percentage of the hacker community. Learn more about hackers and how hackers help the computer world.
How McCarthyism Worked
history.howstuffworks.com/historical-figures/mccarthyism.htm
McCarthyism is a political ploy that wields accusations and shame without significant evidence. Learn about Joseph McCarthy and his Cold War tactics.
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 Leper Colonies (Leprosaria) Work
health.howstuffworks.com/diseases-conditions/infectious/leper-colonies.htm
Leprosy, or Hansen's disease, was the AIDS of the first millennium. Find out how leper colonies (leprosaria) worked at HowStuffWorks.
How Biodegradation Additives Work
science.howstuffworks.com/environmental/green-science/biodegradation-additives.htm
Plastic's handy, hardy stuff, but we don't want to leave piles of old forks and water bottles for future generations to trip over. Can special additives that break down plastics faster save the day?
How Executive Powers Work
people.howstuffworks.com/executive-powers.htm
The powers wielded by the U.S. president have waxed and waned over the years. Learn about executive powers in this article at HowStuffWorks.