Wouldn’t it be great to freeze time at the exact moment, for example, to see a rain drop create splash? Every day little things like this surround us and most of the time we don’t even realize them, most of the time because they happen at such a high speed so we can’t see them.

We decided to rig up a sensor that would detect the exact moment when the drop created the splash. We pointed a laser light at a Light Dependent Resistor so that it would read its maximum value. As soon as the drop would cut the beam, the LDR would read a different value and that would trigger the picture. We did the same for the balloon by setting up a microphone that would pick up the peak when the balloon popped, triggering the picture.