system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How was steady footage of trees and buildings being destroyed by nuclear blasts gathered? How were the cameras not destroyed?
gpt
A couple of ways. You can of course put a good zoom lens on the camera and shoot from farther away than it may seem.

Or, you can build a really sturdy building. A couple feet of thick concrete can do wonders for survival of camera equipment even fairly close to the blast.

Finally, there is the use of a periscope. Bury your cameras a few meters deep and run a tube with some mirrors up above ground. The camera is going to be very safe and the only thing you need worry about is the destruction of your upper mirror and buried tube.