A Moment of Science

Posts tagged speed of light

September 17, 2012

 

an illustration of a man shooting a 17th century musket

Measuring The Speed Of Sound

Gunshots for science? 17th century scientist first attempts to measure the speed of sound.

January 2, 2012

 

plane overhead

Why Is It So Difficult To Spot A Plane In The Air?

How many times have you heard a jet plane going over but not been able to find it even though you were looking toward where the sound was coming from?

January 18, 2011

 

light lines created by a flashlight

How To Calculate The Speed Of Light

Learn how Ole Roemer learned that light does take time to travel.

February 22, 2010

 

light_037

The Speed Of Light And The Interstellar Highway

Have you ever wondered what the speed of light meant?

April 22, 2008

 

Three toy ray guns

You Can’t Outrun a Ray Gun

Sometimes on science fiction shows you see somebody fire a laser beam only to miss because the other person ducked in time. Can you see what's wrong with this?

March 25, 2008

 

The Sun exploding while setting over the Pacific Ocean in California

The Sun Just Blew Up!

How do you know the sun didn't just explode? We aren't talking about the everyday, run-of-the-mill controlled explosion the sun is always doing, but a big boom.

April 9, 2007

 

TV broadcasting tower

TV for Aliens

MTV for Martians? Maybe not, but the idea of broadcasting into space is not as far out as you'd think!

December 20, 2005

 

Faster Than a Speeding Moon

How fast does light travel? What could you do to find out? One natural thing to try is to have someone send some light your way and see how long it takes to reach you. How about if you got a friend to shine a flashlight at you from a distant hill, exactly at midnight? With your stopwatch you start counting the seconds until you see the light. Learn more on this Moment of Science.

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