Daisy Cutter
So I decided to take a few more pictures of my last attempt to make a good shock wave. From the damage to the glass I knew that the heat shrink fragments were traveling very fast.
To replace the broken glass from the last shot I used a thin piece of Lexan, used in bullet proof windows. I also took the shot earlier, about 48usec after the detonation. i don't have an exact value because I don't know what the illuminating flash delay is.
The Lexan has a lot of optical problems which you can see in the vertical stripes. You can also see the shock wave, the black ring in the picture. It is not circular because the explosive charge was a cylinder.
The fun parts are the little triangular hairs spread outside the shock wave. They are little pieces of heat shrink tubing moving faster than the shock wave. From the measured angle the pieces are traveling at about Mach 3. Quite speedy.
Cheers.
Daisy Cutter
So I decided to take a few more pictures of my last attempt to make a good shock wave. From the damage to the glass I knew that the heat shrink fragments were traveling very fast.
To replace the broken glass from the last shot I used a thin piece of Lexan, used in bullet proof windows. I also took the shot earlier, about 48usec after the detonation. i don't have an exact value because I don't know what the illuminating flash delay is.
The Lexan has a lot of optical problems which you can see in the vertical stripes. You can also see the shock wave, the black ring in the picture. It is not circular because the explosive charge was a cylinder.
The fun parts are the little triangular hairs spread outside the shock wave. They are little pieces of heat shrink tubing moving faster than the shock wave. From the measured angle the pieces are traveling at about Mach 3. Quite speedy.
Cheers.