The Sound of Speed Calculator

To restart the program
click Reload/Refresh
 

The speed of sound depends on the type of medium and the temperature. 
In the air, at 70 degrees Fahrenheit, sound travels at approximately 343.79 meters per second or 769.04 miles per hour.

This program will let you calculate how far a lightning occurrence is. 
Once you see the lightening, watch the clock and count the number of seconds until you hear the thunder. 
Now, click calculate below to find out how far away the lightening is from you!