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How Waterless Toilets Work
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Waterless toilets are a great way to save water. Visit HowStuffWorks to learn all about waterless toilets.
Top 10 NASA Inventions
science.howstuffworks.com/innovation/inventions/top-5-nasa-inventions.htm
The men and women of NASA are an ingenious bunch, and they're not just inventing amazing things for space. Which inventions have changed our lives here on Earth?
How 4D Printing Works
science.howstuffworks.com/4d-printing.htm
Is 4D printing much different from 3-D printing? What if we told you some tech insiders are betting it has the potential to change industries from fashion to health care to defense?
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.
Top 10 Mad Scientist Fails
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Most mad scientists slave away their entire lives in pursuit of godlike powers. These 10 mad scientists' fails ended their careers.
How Breast Pumps Work
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Breastfeeding is a healthy way to feed young children, but busy schedules and other factors may keep mom from being available when baby's hungry. Breast pumps can help bridge that gap.
10 Crackpot Theories About Space
science.howstuffworks.com/10-crackpot-theories-space.htm
Our knowledge of space changes all the time as new discoveries are made. But some ideas about the universe have never really held water - including the one that everything is made of frozen H2O.
10 Future Jobs in Health Care
health.howstuffworks.com/medicine/healthcare/10-future-jobs-in-health-care.htm
With Americans living longer, newer and more innovative health care jobs will be go digital. Learn more about future heath care jobs at HowStuffWorks.
10 Unidentified Sounds That Scientists Are Seriously Looking Into
science.howstuffworks.com/science-vs-myth/unexplained-phenomena/10-unidentified-sounds.htm
"Stop, what's that sound?" Doesn't it creep you out when you don't know? There are lots of sounds out there that baffle even scientists.
10 Embarrassing Movie Tie-in Toys
entertainment.howstuffworks.com/10-embarrassing-movie-tie-in-toys.htm
Sometimes toy-makers miss the mark. Learn about 10 embarrassing movie tie-in toys at HowStuffWorks.