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Scientists Working on Converting Human Waste Into Food for Astronauts
science.howstuffworks.com/converting-human-waste-into-food-for-astronauts.htm
HowStuffWorks looks at a study on how human waste can become food - particularly important for astronauts in space.
Which has better fuel economy: manual or automatic?
auto.howstuffworks.com/fuel-efficiency/fuel-economy/better-fuel-economy-manual-or-automatic.htm
In the past, manual transmission cars had better fuel economy. But what about today? Find out if manual or automatic transmissions have better fuel economy.
How to Make Elephant Toothpaste
lifestyle.howstuffworks.com/crafts/science-projects/elephant-toothpaste.htm
Elephant toothpaste: a super-fun science experiment, not a recipe for elephant dental hygiene.
What if You Really Ate 50 Eggs Like in 'Cool Hand Luke'?
science.howstuffworks.com/science-vs-myth/what-if/what-if-ate-50-eggs-like-cool-hand-luke.htm
In the classic film "Cool Hand Luke," the title character gulps down 50 hard-boiled eggs in less than an hour. Is this a trick you can (or should) try at home?
What the Stuff?! : 5 Ways to Stop a Killer Asteroid
www.howstuffworks.com/videos/what-the-stuff/hsw-5-ways-to-stop-a-killer-asteroid-video.htm
Asteroids could destroy life on Earth as we know it. Learn more about asteroids and what we could do to stop one in this video from HowStuffWorks.
How Artificial Geothermal Energy Works
Artificial geothermal energy is made by adding water to naturally hot rocks. Learn about artificial geothermal energy.
Top 10 Improvements in Engine Design
auto.howstuffworks.com/10-improvements-in-engine-design.htm
What are the biggest improvements in engine design over the years? Check out top 10 improvements in engine design at HowStuffWorks.
How Seat Belts Work
auto.howstuffworks.com/car-driving-safety/safety-regulatory-devices/seatbelt.htm
Seat belts save thousands of lives each year. How can a piece of fabric end up being the difference between life and death? What does a seat belt actually do? Learn how seat belts react in a crash.
10 Earth Day Activities to Celebrate Our Planet
science.howstuffworks.com/environmental/green-science/10-ways-celebrate-earth-day.htm
Earth Day is the ideal time of the year to form new eco-oriented habits. Here are 10 things you can do to celebrate our planet all year long.
How the Office of Civilian Defense Worked
money.howstuffworks.com/economics/volunteer/organizations/office-of-civil-defense.htm
The Office of the Civilian Defense was one of the biggest wartime volunteer efforts. Read up on the Office of Civilian Defense and learn when it disbanded.