Hey thanks for uploading this. It's a precious piece of my childhood

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At 17:52, When a snooker cue applies force to a ball, the ball moves off in a straight line, until it hits another ball at an angle. At this point, the white ball starts on a new straight line of motion. Some of the white ball's momentum is transferred to the red ball in the collision. The white ball slows, and then is brought to a stop by friction.

At 49:28, A mixture of liquids that do not dissolve in each other, is placed in a separating funnel, and allowed to stand, so that the different liquids form separate layers. Opening a tap in the funnel stem, allows the bottom layer, (Which is the most dense liquid) to run slowly out of the funnel, and into a collection vessel placed underneath. As soon as all of this first liquid has been collected, the tap is closed. This process is then repeated for each liquid, using a new collection vessel for each one.

@kristophershepard2563

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I’ve fond memories of that voice over. Of course, that was the American narrator, but so far the British ones sound much better.

At 51:45, One way of picturing how your solution forms, is to imagine the water molecules sitting on top of molecules of glucose. The water molecules then begin to move between the glucose molecules, forcing them apart. When this happens, the separated glucose molecules gradually move away, and become dispersed among the rest of the water molecules. When all the glucose molecules have been dispersed, the glucose is said to have dissolved in the water, and the mixture becomes a solution.

14:24 You can see how secondary colours are created when spotlights of the primary colours overlap and become mixed. When you mix red light with an equal amount of blue light, you create a secondary colour called magenta. When you mix blue light with an equal amount of green light, you create a secondary colour called cyan. More surprisingly, when you mix red light equally with green light, the secondary colour you create is yellow. If you mix all three primary colours in equal amounts, you create pure white light.