Air Pressure Droplets

This time I try to make some different with the droplets.
The first drop come from below. I use a little container filled with water and about 1 bar pressure. Through the solenoid valve, controlled with the Camera Axe trigger, I shoot water to the top, then a couple milliseconds later the second drop fall from above and collides with the first one.
Of course also this time I use food color for the water and different filter for the flash.

 

 

Drop collisions (drop-on-drop)

One drop falls down into water and bounces back up. A couple milliseconds later the next drops comes down and collides with the first one. Photos taken with help of the selfmade microcontroller CameraAxe to trigger the flashes.