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How to Tap a Keg

home.howstuffworks.com/beer-keg.htm

It's the centerpiece of many festive occasions. It keeps beer fresh and makes it portable. So how is it designed and manufactured? And where does it go when its party days are over?

What are the odds there is life in outer space?

science.howstuffworks.com/space/aliens-ufos/extraterrestrial-life-odds.htm

Are we alone? Jodie Foster's character in "Contact" didn't think so, and neither do the scientists who've been listening for an extraterrestrial message for decades.

How Plasma Donation Works

health.howstuffworks.com/medicine/modern-technology/plasma-donation.htm

There are two types of plasma donations -- the plasma's the same, it's just the method of donation that differs. Find out how plasma donation works.

5 Ways to Use Algae for Fuel

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Could we use algae for fuel? Keep reading to discover 5 Ways to Use Algae for Fuel.

How Dopamine Works

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You could call dopamine the most misunderstood neurochemical in the brain. It's allegedly the cause of people getting addicted to drugs, chocolate or video games. But what does really dopamine do?

What is flash steaming?

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Flashing steaming is part of the tomato canning process. Check out how flash steaming works to peel your canned tomatoes.

What Is Octane and How Does It Work?

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Adding a chemical called tetraethyl to fuel can significantly improve the gasoline's octane rating. But what is octane? And how does it improve the gasoline we buy? Read on to explore this fascinating molecule.

Sagrada Familia Basilica Is Almost Finished, After 140 Years

science.howstuffworks.com/engineering/architecture/sagrada-familia.htm

Started in 1882, this beautifully ornate church was the vision of architect Antoni Gaudí who conceived of it as a "forest in stone."

10 Cool Things You Didn't Know About Stephen Hawking

science.howstuffworks.com/dictionary/famous-scientists/physicists/10-cool-things-stephen-hawking.htm

He was born exactly 300 years after Galileo died. He never won a Nobel Prize, although he was awarded a guest spot on "The Simpsons." What else do you know (or not know) about this acclaimed physicist?

What Is Xanthan Gum, and Should You Stock It in Your Pantry?

recipes.howstuffworks.com/food-facts/xanthan-gum.htm

Xanthan gum is a flavorless food thickener that's been around for decades. Is it the pantry staple that's missing for your pantry?

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