Can you make your own universe? We usually think of the universe as “everything that exists,” so how could you make another one? Well, physicists have been speculating about the existence of multiple universes for some time now. And for Robert, the obvious next question was: “Can we make one?” So he invited physicist Brian Greene to his kitchen to speculate about just that. And it turns out, it’s not such a far-fetched idea. There are scientists right now trying to figure out whether it’s possible and what it would take. According to Brian, it would require a tiny black hole, a dash of reverse-gravity, and a lot of luck. But the laws of physics don’t rule it out.
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Famed screenwriter Charlie Kaufman and theoretical physicist Brian Greene dissect time as we know it. What is the smallest unit of time, and what does it look like? For starters, you should stop looking at the clock, and start looking at the universe.
Discussion between Robert Krulwich (host) & Brian Greene (physics & math professor) about infinite universes and the idea of the multiverses.
Characters on Star Trek suffer frequent misadventures on the holodeck, a room that creates advanced holograms indistinguishable from reality. But now theoretical physicists such as Brian Greene, host of the recent PBS special The Fabric of the Cosmos, are starting to wonder if every object in the universe isn’t some sort of hologram. Greene talks physics and science fiction in this week’s episode of the Geek’s Guide to the Galaxy podcast.