…about thunder…and lightning?

A while ago Dad told us how to calculate the distance of lightning. Here’s how you do it:

- Right after you see a flash of lightning start counting 1 and 2 and 3 and 4 and 5…
- As soon as you hear thunder, stop counting.
- Divide the number of seconds by three to calculate the distance in kilometers. In other words if you counted 18 seconds then divided that by three you get six, so the lightning struck about six kilometers away

Did you know that:

sound travels through the air at about 330-350 meters per second?

the speed of sound is about 299,792,458 meters per second?

!!!WOW!!!