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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.
How Day Trading Works
money.howstuffworks.com/day-trading.htm
Day trading is buying and selling securities in the same day. Day traders take advantage of small price shifts. Learn about day trading.
How are crystals made?
science.howstuffworks.com/environmental/earth/geology/how-are-crystals-made.htm
From the Hope diamond to the shiny bits in instant coffee, crystals have always held the power to fascinate us humans. Are they more than just a bunch of pretty facets?
How Space Farming Works
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Space farming is the process of cultivating plants in space. Learn why space farming is important and how space farming will affect life on Earth
How Play-Doh Works
entertainment.howstuffworks.com/play-doh.htm
The smell of Play-Doh® modeling compound is instantly recognizable to millions of people. Learn about its history and why it acts the way it does.
How Circuits Work
science.howstuffworks.com/environmental/energy/circuit.htm
Circuits can be found in just about every electronic device you can think of. Find out what circuits are and how circuits make electronic devices work.
How Willpower Works
science.howstuffworks.com/life/inside-the-mind/human-brain/willpower.htm
Willpower allows us to resist urges and impulses. Learn about willpower in this article.
5 Vehicles That Were Crossover Before There Were Crossovers
Some vehicles were simply ahead of their time, with features from cars and trucks. Read about 5 vehicles that were crossover before there were crossovers.
10 Vintage Motorcycle Brands
auto.howstuffworks.com/10-vintage-motorcycle-brands.htm
Some vintage motorcycles garner intense passion and following, whether it's Harley or Honda or Indian. Check out 10 vintage motorcycle brands at HowStuffWorks.
How Google Voice Works
electronics.howstuffworks.com/google-voice.htm
Have you heard about Google Voice? It allows someone to call one phone number and reach you no matter where you are. See how Google Voice works.