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Movie : can1.m1v (1.3MB)
Aluminium can, using coil made of 3mm copper rod, sleeved in polythene tube. Power
around 1.5KJ.
Probably 1000 frames/sec - we were messing with external sync & can't be sure....!
Before
Dark band visible, probably due to magnetic field interfering with camera. Slight
crushing starting to become visible at bottom of can.
1ms later - coil has pinched together and can-crush is pretty much complete
Crush spreads out - probably due to springiness of can
Coil starts to recover shape, can now pretty stable
Movie : lpcan_4k.m1v (92K)
(Probably) 4000 frames per second...!
Some interesting rippling effects can be seen at the ends of the can in the movie.
Indirect crushing by smashing a hard-disc platter into the can.1000 frames/sec.
Movie : discintocan.m1v (7MB).
Initial state - again you can see the horinzontal bars from the interference to the
camera
Where's the disc gone...? You can just see the blur
Disc meets can...
Disc bends round can
