Television - The Secret Life of Machines - Video/DVD

Television - 25 minutes This program starts with Hunkin cutting a TV set in half with a saw to show what's inside. Demonstrates how light interacts with electricity. Early history of valves is covered using archive. John Logie Baird's invention. EMI vs BBC technology in 1930's. The cathode ray tube and its phosphor coating is shown. High voltage applications are described and the care needed. He shows the effect of a magnet on an electron beam, and how the beam moves to build a picture. A model demonstrates this. How TVs have evolved over the years is portrayed using archive film. Safety issues with High tension. Colour TVs are explained - how mesh and phosphor work to make picture. Component electronics in a TV set are illustrated - resistor, capacitor, transistor, diode - what they do. Repairing a TV - easy faults/hard faults. The program ends with the reliability of modern electronics. 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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