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882: Searching The Universe For Clues To The Ultra-Small
Manage episode 445501832 series 3381328
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What exactly is … everything? What is space-time?
At one extreme, you’ve got the weird rules of quantum physics that deal with subatomic particles. At the other extreme, you’ve got the vast expanses of space, such as spinning galaxies and black holes.
By mapping the cosmic microwave background, surveying the distribution of galaxies around the sky, and listening for gravitational waves, researchers are studying the cosmos for clues to the quantum. They hope that by finding patterns in some of these large-scale structures, tiny irregularities involving quantum effects in the earliest days of the universe might be revealed.
Charlie Wood, a staff writer covering physics for Quanta Magazine, has written about some of these space-time mysteries in a special issue. He joins Ira to discuss the nature of space-time and how scientists are trying to decode its physics.
Transcript for this segment will be available after the show airs on sciencefriday.com.
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