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Your search for "preliminary" returned 178 results
How Indoor Automatic Composting Systems Work
home.howstuffworks.com/indoor-automatic-composting-system.htm
Indoor automatic composting systems help reduce the amount of waste that goes into the trash. Learn about indoor automatic composting systems.
8 Famous Parks Designed by Frederick Law Olmsted, Plus a Tiny One You May Not Know About
science.howstuffworks.com/engineering/civil/frederick-law-olmsted.htm
The designer of New York's Central Park believed that public parks were 'democratic spaces' belonging to all citizens, and aren't we glad he did?
How Telephones Work
www.howstuffworks.com/telephone.htm
Telephones are one of the most important and useful modern inventions. Learn about telephone operation, creating a telephone network and tones and bandwidth.
How Wireless Power Works
electronics.howstuffworks.com/everyday-tech/wireless-power.htm
Unless you are particularly organized and good with tie wrap, you probably have a few dusty power cord tangles around your home. Find out how methods of wireless power transmission could cut the clutter or lead to clean sources of electricity.
Balneotherapy Overview
health.howstuffworks.com/skin-care/beauty/skin-treatments/balneotherapy.htm
Balneotherapy, or the therapeutic use of water, is a safe and time-tested treatment. Learn about uses and history of balneotherapy.
Top 6 Fire-resistant Building Materials
How do you slow down a fire? These six building materials are particularly resistant to fire and intense heat, reducing the possibility of fatalities.
How Fatal Familial Insomnia Works
health.howstuffworks.com/mental-health/sleep/disorders/fatal-familial-insomnia.htm
Fatal familial insomnia is a rare genetic variation of the debilitating sleeping disorder. Learn more about FFI at HowStuffWorks.
The Dyatlov Pass Incident: Could an Avalanche Have Killed the Hikers?
history.howstuffworks.com/historical-events/dyatlov-pass.htm
What happened to the nine dead hikers at Dyatlov Pass in Russia? HowStuffWorks takes the mystery apart and examines it.
Egg Donation Overview
health.howstuffworks.com/pregnancy-and-parenting/pregnancy/fertility/egg-donation.htm
Egg donation is one option for women or couples with fertility problems. Learn about egg donation and find out what it takes to be an egg donor.
How Mahjong Works
entertainment.howstuffworks.com/leisure/brain-games/mahjong.htm
Mahjong is a strategy game that originated in China. Visit HowStuffWorks to learn all about Mahjong.