Science Demonstrations

We have been building a wide variety of science demonstrations since about 2000, originally for CHaOS (Cambridge Hands On Science), and our own shows but more recently for Lab in a Lorry, The Naked Scientists shows, the Cambridge Science Centre, the RI christmas lectures and others.
Having done a huge amount of loading experiments in and out of vans we have now become obsessed with making experiments pack as efficiently as possible, preferably into a standard box or if that is not possible, then as a clean flat object which will pack nicely.

A model train pushed along by the pressure of the air from a centrifugal pump to model a historical underground post railway in London.
A stick that will display the current passing through a circuit made of a group of people as a flow of lights.
Use a laser to send a message through the air. Use a fibre optic to send the signal around corners
A suitcase that looks normal-until you pick it up and try to turn a corner, when it all goes a bit weird...
This demo shows how how you can produce light by heating something up electrically in a reliable and impressive way.
A monitor which appears to be broken, it just shows a white screen whatever is plugged into it. However it you put a piece of polariser up to it and a picture suddenly appears.
Who wouldn't like a three metre column of spinning fire in their science show?
Most space rockets are launched from the equator. Why is this?
A pair of trolleys with very low friction, so you can throw fuel one way and the trolley will go in the other - a rocket.
Vacuum bazookas are a classic demo, which can be used to think about pressure and momentum. We went slightly further and have produced various repeating versions.

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