Making Heat Engines - Christmas Lectures with George Porter

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George Porter shows how we can make heat engines by harnessing the power of sunlight, and what we can use them to do.
Watch the full fifth lecture of the series:

George Porter gave the 1976 Christmas Lectures "The Natural History Of A Sunbeam" about the power of light, from the role it plays in stimulating life to supplying energy to our homes.

The fifth lecture "Making Light Work", where this clip is from, sees George taking the audience through the laws of thermodynamics with a series of demos which explain how they work in real-life settings.

Watch the full series:


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