Videos

Have you ever wondered why photos and videos of a helicopter in flight look unpredictably weird? Sometimes the helicopter blades appear as a blur, while other times (as in the video below), the blades look like they’re not moving at all.

Take a look and see for yourself:

Obviously, there’s more going on than meets the eye when it comes to shooting fast-moving objects like helicopter blades, and the answer to the riddle has to do with a combination of shutter speed and frame rate. The video below from the Brain Stuff YouTube channel offers a succinct explanation.

Via Twisted Sifter