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Connections - Season 3 Episode 3 Drop the Apple
10.00 48 minutes At the Smithsonian, we learn of electric crystals that help Pierre and Marie Curie discover what they call radium, and then Langevin uses the piezoelectric crystal to develop sonar that helps save Liberty ships (from German U-boats) put together with welding techniques using acetylene made with carbon arcs, also working the arc lights with clockwork regulators built by Foucault, whose pendulum helps him to take pictures of solar eclipses. Also thanks to ash from seaweed, interchangeable parts for clocks, the world of opera, and gurus, we get Einstein's theory of the gravity effect, which means Newton's universe is gone and you can drop the apple.
