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Air Date: Wed, Jul 25, 2018 10:00 PM
Drill down to discover how Earth’s natural treasures provide bountiful energy to power our modern world yet are also driving us to seek new, cleaner alternatives that can help us keep the lights on.
Air Date: Wed, Jul 18, 2018 10:00 PM
Gold, bronze, iron, steel: these metals are pillars of our civilization, but what makes them so special? Discover their unique properties and explore how our mastery of metals has led us from the stone age to today’s hi-tech world.