Free Falling In Outer Space

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Oct 302013
 

Free Falling In Outer Space

Have you ever wanted to float in space like an astronaut? It turns out that it’s less like floating, and more like a free-fall in orbit around the Earth.

Enjoy!

If you were to orbit the Earth, you’d experience the feeling of free fall, not unlike what your stomach feels before a big dive on a roller coaster. With a little help from Sir Isaac Newton, Matt J. Carlson explains the basic forces acting on an astronaut and why you probably shouldn’t try this one at home.

 

How To Of The Day: De-Skunk Your Dog

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Oct 292013
 

If your dog gets sprayed by a skunk, you can remove the stench with a simple bit of chemistry.

The video was produced by Sally B. Mitchell, a chemistry teacher from East Syracuse Minoa High School in Syracuse, NY. It turns out that tomato juice is not the best way to de-skunk your dog — watch the video to find out more!

 

James May – Why Do Boomerangs Come Back?

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Oct 172013
 

James May answers the question “Why do boomerangs come back?”.

Discover the scientific principles of the Boomerang with James May in the latest Head Squeeze Q & A video.

Not limited just to Aborigines in Australia, Boomerangs have been found all over the world – even in the tombs of Ancient Egypt. Did early hunter gatherers really use these to take our their opponents at long distance, or were they better suited to small prey like birds?

Boomerangs work by harnessing both gyroscopic and aerodynamic forces, much like helicopters and they must be thrown at a very specific angle to function properly.

The world record for a boomerang flight is an incredible six minutes.