Thunderstorm
Lightning
Thunder
Press when you see the lightning
(works offline, loads faster, no ads)
This application calculates the distance of a thunder storm by measuring
the time between a lightning and the corresponding thunder.
How to use
- When you see the lightning press the Lightning button.
- Wait until you hear the thunder and press the Thunder button.
- Tap the distance to toggle between metric and imperial units
- With the help of the history list you can see whether the storm comes closer and moves away.
Background
The speed of light is much faster than the speed of sound. By measuring the time between the lightning and corresponding thunder one can easily approach the distance by multiplying the duration with the speed of sound.How to install
There is no need to install this aplication on the iPhone. Just openthunder.speedymarks.com
in the Safari browser. You can add it to the home screen by clicking the little plus at the bottom browser bar:
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