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How Does Herd Immunity Keep a Country Safe From Diseases?
science.howstuffworks.com/life/cellular-microscopic/herd-immunity.htm
Herd immunity relies on the principle of safety in numbers as far as vaccinations go. Find out why herd immunity is an important public health issue.
11 of the World's Worst Serial Killers
people.howstuffworks.com/10-worlds-most-prolific-serial-killers.htm
Some serial killers have murdered more than 100 people. Who are the worst serial killers, and why did they do it?
UFO History
science.howstuffworks.com/space/aliens-ufos/ufo-history.htm
Modern UFO history began with the 1947 UFO sighting by pilot Kenneth Arnold. Learn the history of UFOs from ancient times to the mid-20th century.
How Hillary Clinton Works
history.howstuffworks.com/historical-figures/hillary-clinton.htm
Hillary Clinton is in the running to become the first female U.S. President. Read about Hillary Clinton and her agenda, voting record and career.
How the Sharing Economy Works
money.howstuffworks.com/sharing-economy.htm
In some places, people forgo buying things to rent what they need from complete strangers. Learn about the sharing economy from HowStuffWorks.
10 Big Questions in the U.S. Gun Control Debate
people.howstuffworks.com/10-questions-in-gun-control-debate.htm
The U.S. gun control debate is controversial and multifaceted. Learn about 10 of the big questions in the U.S. gun control debate at HowStuffWorks.
How VoIP Works
computer.howstuffworks.com/ip-telephony.htm
VoIP lets you make calls through your computer, sometimes for free. Learn how VoIP works, find reviews of VoIP phones and learn how to make free VoIP calls.
10 Dangerous Everyday Things in Your Home
home.howstuffworks.com/home-improvement/home-diy/dangerous-home-products.htm
You would not believe the dangerous things in your home - everything from air freshener to cosmetics. Learn about the dangerous things in your home.
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.
5 Ways to Cheat in Baseball (That Aren't Steroids)
entertainment.howstuffworks.com/5-ways-to-cheat-in-baseball.htm
What are some ways to cheat in baseball (that aren't steroids)? Learn about ways to cheat in baseball (that aren't steroids) at HowStuffWorks.