
work out how far away a storm is, using the lightning/ thunder principle?
( , Mon 4 Jul 2005, 14:55, archived)

When you are struck you know its close
( , Mon 4 Jul 2005, 14:56, archived)

sound travels about a mile every five seconds
edit: which makes flapjack a mach 3 fighter jet, and me a badly-made paper dart
( , Mon 4 Jul 2005, 15:03, archived)

So the sound has to go down the long side of a triangle. Or something. I saw a picture in a book, once.
( , Mon 4 Jul 2005, 15:05, archived)

very much corrected.
So much for my engineering degree!
( , Mon 4 Jul 2005, 15:09, archived)

Number of seconds from flash to bang / 5 = number of miles to epicentre*.
* or whatever lightning has
( , Mon 4 Jul 2005, 15:05, archived)