Washing Machine - The Secret Life of Machines - Video/DVD

Washing Machine - 25 minutes Program starts with early history of clothes washing aids demonstrated by Hunkin to illustrate effect of water pressure and agitation. Archibe footage shows how industrial washing came first. Safety issues of water, heat & electricity - design challenges. Then came early home automatic machine designs. Concrete blocks were used to damp vibration during the spin cycle - Hunkin demonstrates what happens when taken out. Detailed explanation of a solenoid tap valve, and pressure switch to turn off when full (see picture). Water heater element construction and workings are shown. Spin Vs wringer for removing water demonstrations. Centrifuge demonstration. Use of water pump design ingenious - how it can pass buttons. Electromechanical timer Vs micro chip control. Special notes

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	The Secret Life of Machines has been on TV around the world - USA, Australia, UK, Britain.... These award winning television programmes show how machines work. Using analogies, illustrations, working models and extraordinary experiments, Tim Hunkin 'lifts the bonnet' on the machines we take for granted. His enthusiasm for his subject is infectious. Excellent education and technology resources.
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