Transcript

TOM:

OK, the first thing we do is take the bucket. We have the water in the bucket, and we start to emulate circular motion by gradually building up speed, and then confidently swinging it around in a motion where the water stays in the bucket. If you slow it down very carefully, the water doesn't fall out of the bucket.

The trick now is to show you circular motion as we're going around, what happens when the force stops. The water falls out of the bucket. At the wrong time, the water will fall out and continue towards the centre. As proof, there's very little water left in the bucket.