S11·E29 The Greatest Advance Since the Wheel?
Synopsis
Sixty years ago a Dutch scientist discovered a phenomenon that overturned the electrical rule book. By cooling certain metals to incredibly low temperatures he found they could continue to carry an electric current for ever, even when the power supply was switched off. Today, developments of these metals - called superconductors-have led to trains that fly, magnets that could depollute rivers and machines that promise cheaper power.
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Frequently Asked Questions
When did Season 11 Episode 29 of Horizon air?
Season 11, Episode 29 ('The Greatest Advance Since the Wheel?') originally aired on November 25, 1974.
How long is Season 11 Episode 29 ('The Greatest Advance Since the Wheel?')?
The runtime for this episode is approximately 60 minutes.
What happens in Horizon Season 11 Episode 29?
Sixty years ago a Dutch scientist discovered a phenomenon that overturned the electrical rule book. By cooling certain metals to incredibly low temperatures he found they could continue to carry an electric current for ever, even when the power supply was switched off. Today, developments of these m...
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