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Has Earth reached its carrying capacity?
science.howstuffworks.com/environmental/green-science/earth-carrying-capacity.htm
Carrying capacity is the idea that sustainability requires balance. Learn about carrying capacity and human population.
Cecilia Helena Payne-Gaposchkin
Payne-Gaposchkin, Cecilia Helena (1900-1979) was a British-born astronomer who became an authority on variable stars (stars that change in brightness) and the structure of the Milky Way Galaxy.
How Wind-up Cell Phone Chargers Work
electronics.howstuffworks.com/gadgets/travel/wind-up-cell-phone-chargers.htm
Wind-up cell phone chargers are popular travel gadgets. Learn more about wind-up cell phone chargers at HowStuffWorks.
Does smiling make you happy?
science.howstuffworks.com/life/inside-the-mind/emotions/smiling-happy.htm
Can smiling make you happy? Take a look at research and explanations behind whether or not smiling can make you happy.
Doctor Fish Skin Treatment
health.howstuffworks.com/skin-care/problems/treating/doctor-fish.htm
Doctor fish are used to treat a number of skin ailments. Learn about how doctor fish work at HowStuffWorks.
Filiform Warts Overview
health.howstuffworks.com/skin-care/problems/medical/filiform-warts.htm
Filiform warts are usually located on the face. Learn more about how filiform warts work at HowStuffWorks.
1980 Corvette
auto.howstuffworks.com/1980-corvette.htm
The 1980 Corvette was born in the midst of a new 'energy crisis,' which likely contributed to a decrease in sales. Learn about the 1980 Corvette.
Can the government read your private e-mails?
people.howstuffworks.com/stored-email.htm
Email is now protected from secret government searches thanks to a recent U.S. Circuit Court of Appeals ruling. Read about this landmark email privacy ruling.
How Edsel Cars Work
auto.howstuffworks.com/edsel-cars.htm
Edsel is a case of a good idea happening at the wrong time. Learn about the road blocks that kept Edsel from greatness.
Which trees hold up best during a natural disaster?
home.howstuffworks.com/lawn-garden/professional-landscaping/natural-disaster-tree.htm
In a natural disaster, a tree won't always hold up against wind and rain. To withstand a disaster, a tree must be strong, so learn which fit the bill.