Still Gallery

Single Flash Still Images

    These images of milk splashing into petroleum ether were taken using only one flash with the Sony DKC-FP3 camera. They were used as a preliminary measure to determine how dual liquid splashes progress. The flash was triggered by a photogate and delayed with a time delay circuit.. 

Flash Distance (side) - 6 in.
Camera Distance - 1.5 ft. 

Multi-Colored Flash: Time Lapse Stills

   These images are of milk splashes in petroleum ether. They were taken using multiple flashes. All images were taken with a Sony DKC-FP3 camera. The following settings were used for all pictures. The flashes were sequenced with a computer-controlled  interface (Apple II). The time delay for the first flash and the interval between subsequent splashes are specified for each image.

Flash Distance (side) - 6 in.
Camera Distance - 1 ft. 

The three images below were taken using four flashes. The flashes triggered in the order: blue, orange, green, and red.

Delay = 165 ms Interval = 12 ms

Delay = 165 ms Interval = 12 ms

Delay = 165 ms Interval = 12 ms

The images below were taken using only three flashes because the orange flash was too bright. The flashes triggered in the order: blank, blue, green, and red. The blank flash was triggered, but since the cable the flash unit was disconnected, it did not flash. This means that the first flash (blue) actually went off "interval+delay" after the drop passed through the photogate.

"High-Speed Photography with Computer Control", L.M. Winters, The Physics Teacher 29, 356 (1991)