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Today we’ll talk about whether dark energy is made of black holes, four types of solar systems, exoboots, whether banning short-haul flights makes sense, 3D printing with sound, smart contact lenses, how copper makes fuel, a new method to extract carbon dioxide from seawater, and of course the telephone will ring.

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00:00 Intro
00:29 Dark Energy = Black Holes?
05:53 4 Types of Solar Systems
07:23 Better Balance with Exoboots
09:04 Does Banning Short-haul Flights Make Sense?
11:45 3D Printing With Sound
14:08 Simple Smart Contact Lenses
15:40 How Copper Makes Fuel
17:30 A New Method to Extract Carbon Dioxide from Seawater
20:05 Learn Science With Brilliant

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