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How NASA Planetary Protection Works

science.howstuffworks.com/nasa-planetary-protection.htm

What if your job were to protect life in the galaxy at all costs? Read about NASA's Planetary Protection program at HowStuffWorks.

How Therapeutic Hypothermia Works

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During therapeutic hypothermia, doctors reduce a patient's body temperature to prevent cellular damage. See how therapeutic hypothermia saves lives.

Top 10 Foods High in Omega-3

health.howstuffworks.com/wellness/food-nutrition/healthy-eating/5-foods-high-in-omega-3.htm

Foods high in omega-3 are supposedly good for you, but do you know why? Explore 10 foods high in omega-3 and learn the benefits of this fatty acid.

How Astronauts Work

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Astronauts are adventurers and scientists who work in space. Learn who astronauts are and what they do in space and on Earth.

How does a jet truck work?

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Shockwave, a triple jet-engine truck, holds the Guinness record for jet-truck speed at 376 miles per hour. Find out how it works.

How does acupressure work?

health.howstuffworks.com/wellness/natural-medicine/alternative/question654.htm

When I get a headache, my friend presses a spot on my hand. Somehow, this makes my headache go away. How does this work?

How do you replace a seal under a toilet?

home.howstuffworks.com/home-improvement/plumbing/question504.htm

A friend told me that the bad smell coming from my toilet indicates that the seal under the toilet is broken and needs to be replaced. He also said that I could probably do the job myself. I'd like to try. So how do you replace the seal underneath the toilet?

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