Plot: 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
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Horizon - Season 11 - The Greatest Advance Since the Wheel? (Episode 29)
Episode Aired On:
Monday, November 25 1974
50 years ago
Monday, November 25 1974
50 years ago