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Posts tagged acceleration

April 1, 2013

 

guy on skateboard

Ollie Gelfant And His Famous Skateboard Jump

Today's Moment of Science is about the ollie, the jump skateboarders use to jump over curbs, onto benches, or across chasms.

October 28, 2011

 

treadmill

Why Do I Feel Strange When I Get Off A Treadmill?

After a session on a treadmill you might have noticed that when you get off the machine you feel like you are walking much faster than you really are.

February 15, 2011

 

sky_diver

How Do Skydivers Control Their Terminal Velocity?

A skydiver's body is in a delicate balance. Gravity tugs her downward with a constant, relentless force, while air resistance pushes her upward.

February 14, 2011

 

Two men skydiving

The Physics Of Skydiving

Every skydiver experiences two different forces: the tug of gravity and the upward push of air resistance.

February 13, 2007

 

a yellow sportscar with solar panels on hood

Solar Powered Cars

What are the pros and cons of a solar powered ride?

July 29, 2005

 

The Garden Hose

Have you ever sprayed someone with a garden hose? If you wanted to get them good, you placed your finger over part of the tip of the hose. The water then sprayed out faster and farther. Why does putting your finger over the tip of the hose make the water shoot out faster and farther? 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.

September 27, 2003

 

A skateboarder jumping over (ollie) a stack of skateboards.

The Ollie

Though they make it look easy, skateboarders spend a tremendous amount of time practicing when it comes to perfecting the ollie.

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