You can determine your distance from lightning by counting the time between seeing the lightning and hearing the thunder. Divide the number of seconds by 3, and it is approximately how many kilometers away the lightning was. The same rule applies to explosions.
- For the nuclear bomb video, watch the reaction of the woman in red.
- For the failed rocket launch, count the seconds between the explosion and the shockwave to determine the crowd’s distance from the launch site.
- For the meteor landing, count the seconds between the explosion and the shockwave to determine the distance.
Best Shockwave Compilation | It Will Shake You (4:59 – watch to 0:30, then from 2:10 to 4:30)
Shockwave on the sun following a solar flare
Slow Motion Water Balloon and Bike Tire (0:32)
Shockwave pattern on the ground under the muzzle of an M240B rifle after shooting a few hundred rounds
Shockwave physically prevents rain from falling
WW2 mine recently exploded at a German farm. Shockwave created a perfect circle of broken stalks outside of the blast
Visible shockwave from an explosion
Interference pattern between two shockwaves
The USS Iowa firing a full broadside of nine 16″ shells
Making a Shockwave by Hitting Two Huge Steel Ball Bearings Together! (4:04)
How to Survive a Grenade Blast (5:00)
Discussion: Would you rather be in a pool with a grenade beside you, or on land?
Fishing with dynamite is not legal most places. Notice how far away from the explosion there are dead fish.

