A retired American police officer has captured a pellet flying through a falling water drop. Dennis Havel decided to take on the seemingly impossible challenge after a fellow photography enthusiast bet him 50 US dollars that it couldn't be done. "I'm not an expert photographer, it was more of a mathematics and physics thing," said Dennis. "A lot of calculations have to be done, it is down to 20,000ths of a second. I use infa red detectors so when the drop is released it breaks the beam which starts a sequence in a timer module made specially for this called a 'stopshot'. Once the falling water drop breaks that beam, it starts the timer and I've pre-calculated how long it will take to drop 13 inches. I have the timer set so it fires the flash a couple of thousands of seconds after the drop is released so it fires when the drop is in the middle of the frame."

Credit : Dennis Havel / newsteam