A Moment of Science

Posts tagged air pressure

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.

July 10, 2007

 

Hourglass with blue sand

The Ticking of the Hourglass

Aw, the ticking of the hourglass. Ticking hourglass? Clocks tick. Hourglasses flow. Are we mixing our metaphors? Learn more on this Moment of Science.

January 31, 2006

 

splash

The Physics of a Splash

What happens when a droplet of liquid lands on a glass surface?

June 27, 2005

 

No Pressure

Some very adventurous people have used big suction cups to climb the fronts of glass buildings. However, they’d better not climb too high, because the higher you go, the less effective a suction cup will be. In space they’re no good at all! Learn more on this Moment of Science.

May 3, 2005

 

Mile High, Feeling Low

It may seem that the Denver Nuggets have quite the advantage when playing the Detroit Pistons as a result of altitude. Learn more on this Moment of Science.

March 31, 2005

 

Driving Under Pressure

As your car rapidly decelerates, you feel yourself pushed up against the wheel. Why? Learn more on this Moment of Science.

February 3, 2005

 

Volcanos and Water

What happens when a volcano erupts underwater? Find out on this Moment of Science.

February 16, 2004

 

The Invisible Hand

Want to try a neat experiment that shows air pressure at work? "The Invisible Hand" on this Moment of Science.

December 23, 2003

 

What is Air?

What does air actually consist of? Find out on this Moment of Science.

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