A Moment of Science

Posts tagged airplane

August 27, 2010

 

airplane

What Causes Airplane Turbulence?

Have you ever been on an airplane and experienced turbulence?

April 15, 2009

 

Chunnel entrance on England's side

Ear-friendly Train Tunnels

The most famous tunnel is the thirty mile "Chunnel" between England and France. The Chunnel is actually two separate tunnels, connected by cross passages.

April 14, 2009

 

Inside train tunnel

Popping Ears on a Train

When a train enters a tunnel, it compresses the air in front of it like a piston. Air in a tunnel can't be simply pushed aside--the tunnel walls are in the way.

December 10, 2008

 

Assortment of contrails

Airplane Contrails

Why do airplanes sometimes leave long white contrails behind?

September 23, 2006

 

two pilots sitting in the cockpit

Airplane Navigation

How do modern-day pilots navigate their way at 35,000 feet?

December 1, 2005

 

Physics of the Fall

Skydiving has become an increasingly popular sport, although most of us haven’t yet taken the plunge and only enjoy it from the sidelines. If you’ve seen video of skydivers in action, especially skydiving teams that link up to create formations, you might wonder how they do it. It’s a matter of elementary physics. Learn more on this Moment of Science.

September 15, 2005

 

Airplane Turbulence

You’d expect a ride this bumpy if you were driving an off-road vehicle over rocky, uneven terrain, but a bump bump BUMP as you glide 30,000 feet above that terrain in a modern jet liner, might surprise you, not to mention scare the bajeebers out of you. After all, you never notice hard lumps and bumps as you breathe air. What makes an airplane go bump? Learn more on this Moment of Science.

December 16, 2003

 

Popping Ears

Why do ears pop when traveling by plane? Find out on this Moment of Science.

September 27, 2003

 

Ear-friendly Train Tunnels

The most famous tunnel is the thirty mile “Chunnel” between England and France. Thirty miles of air is a lot to push around, so engineers have come up with a clever solution. The Chunnel is actually two separate tunnels, connected by cross passages.

September 27, 2003

 

Hole in the Earth

Also, earth’s core is a metal sphere 800 miles wide, but just pretend we’ve bored through it. What would be the result? For one thing, you could then travel to the other side of the world in under one hour.

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