Here a lime is about to be shot with a .22 caliber bullet, then it is shown in the act of being shot as recorded with ultra-high speed electronic flashes activated by the passage of the bullet's shockwave over a synchronizing microphone thus triggering the flashes at the correct instant, and then the inevitable clean-up following the disintegration and instant conversion to juice of each subject brought by the students to this laboratory exercise.

Here a student is getting a Dynafax camera ready for making a sequence of pictures at 20,000 pictures per second to determine the velocity of a .22 caliber bullet as it travles in front of a 12 inch diameter concave mirror set up in a single mirror Schlieren system configuration. A section of the sequence obtained in this manner is also shown. In it the shockwave of the bullet as it flies at supersonic speed is prominently visible.

Here you can see a group of students in the process of setting up to photograph water or milk splashes using a dark-activated synchronizer with built-in delay capability. This synchronizer is built "from scratch" by students who enroll in the Photoinstrumentation Seminar course at a cost of about $35. Here one of these synchronizers is used to detect the passage of a drop through a light beam. This causes the synchronizer to become activated. It "holds" the trigger signal until the drop has reached the impact zone at which time it fires a powered-down electronic flash which delivers a light burst lasting about 1/10,000 second. A typical result of such photography is shown.