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Modern Marvels Presented by History
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Live
Modern Marvels
16:00–16:54
Electrical linemen repair 345,000-volt power lines from helicopters as part of America's nearly two-century hardwiring story fiber optic cables transmitting light since the late 1970s remain vital infrastructure alongside wireless technology.
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Mon 16:54
Modern Marvels
16:54–17:46
Mixtures of metals and caustic chemicals that make our tech, tools and toys surge with energy visit the world's most powerful battery in Fairbanks, Alaska--13,760 hulking cells humming with 5,000 volts, ready to help the city survive power outages.