TWIG 566: Thunderbolt and Lightning

TWiT Shows This Week In Google
21

It depends on the difference between the speed of light and the speed of sound. The thunder lags five (I was taught seven but Mike was right) seconds per mile behind the thunder.

Of course the speed of sound is highly variable so it’s only a rule of thumb.

https://www.livescience.com/37734-how-far-away-is-lightning-distance.html

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22

I loved the TD’s insertion of “mood music” for the thunder. :cloud_with_lightning::joy:

1 Like
23

yes, you’re right! I mis-wrote - of course you count after the lightning flashes. But the point still stands!

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