Where is this bolt? в Android Market

Where is this bolt? (v. 1.1) Разработано LeKant

Do you know that you can estimate where a lightning hits the ground counting time between the flash and the sound?

This app will do that for you : push the button when you see the flash, release it when you hear the sound and you will know how far is the lightning.

You can use this app with fireworks as well.
Any kind of detonation also...