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High speed photos

When

These photos ware made in 1977.

How

The photos were made with electronic flashlight in a darkened room.
The timing is crucial. The soapbubbles burst because they are hit by a doplet of salted ethanol. The droplet passed two golden contacts. The signal this generated was amplified and delayed with a TTL MMV before it trigger the flashlight.
By experimenting with the delaytime (≈ 5.8 mS) the following results were achieved.

Three photos of bursting soapbubbles

The diameter of the soapbubbles is 14 cm.
Exposuretime ≈ 60 µS.
Scans of a prints on rastered photopaper.
portfolio_files/highspeed1.jpg
portfolio_files/highspeed2.jpg
portfolio_files/highspeed3.jpg
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