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Lisa Randall

๐Ÿ‘ค Speaker
516 total appearances

Appearances Over Time

Podcast Appearances

Freakonomics Radio
The Brilliant Mr. Feynman (Update)

And I thought, wow, that is one place I do not want to go.

Freakonomics Radio
The Brilliant Mr. Feynman (Update)

You know, it's very interesting in this day and age because growing up in the age of the women's movement, a lot of other movements, a lot of it was about not focusing on your identity, being just considered like anyone else.

Freakonomics Radio
The Brilliant Mr. Feynman (Update)

And today's identity politics is very much the opposite.

Freakonomics Radio
The Brilliant Mr. Feynman (Update)

So it's very confusing.

Lex Fridman Podcast
#403 โ€“ Lisa Randall: Dark Matter, Theoretical Physics, and Extinction Events

I think one of the really important things that physics teaches you is just our limitations, but also our abilities. So the fact that we can deduce the existence of something that we don't directly see is really a tribute to people that we can do that. But it's also something that tells you you can't overly rely on your direct senses.

Lex Fridman Podcast
#403 โ€“ Lisa Randall: Dark Matter, Theoretical Physics, and Extinction Events

I think one of the really important things that physics teaches you is just our limitations, but also our abilities. So the fact that we can deduce the existence of something that we don't directly see is really a tribute to people that we can do that. But it's also something that tells you you can't overly rely on your direct senses.

Lex Fridman Podcast
#403 โ€“ Lisa Randall: Dark Matter, Theoretical Physics, and Extinction Events

I think one of the really important things that physics teaches you is just our limitations, but also our abilities. So the fact that we can deduce the existence of something that we don't directly see is really a tribute to people that we can do that. But it's also something that tells you you can't overly rely on your direct senses.

Lex Fridman Podcast
#403 โ€“ Lisa Randall: Dark Matter, Theoretical Physics, and Extinction Events

If you just relied on just what you see directly, you would miss so much of what's happening in the world. And we can generalize this, but just for now, to focus on dark matter. It's something we know is there. And it's not just one way we know it's there.

Lex Fridman Podcast
#403 โ€“ Lisa Randall: Dark Matter, Theoretical Physics, and Extinction Events

If you just relied on just what you see directly, you would miss so much of what's happening in the world. And we can generalize this, but just for now, to focus on dark matter. It's something we know is there. And it's not just one way we know it's there.

Lex Fridman Podcast
#403 โ€“ Lisa Randall: Dark Matter, Theoretical Physics, and Extinction Events

If you just relied on just what you see directly, you would miss so much of what's happening in the world. And we can generalize this, but just for now, to focus on dark matter. It's something we know is there. And it's not just one way we know it's there.

Lex Fridman Podcast
#403 โ€“ Lisa Randall: Dark Matter, Theoretical Physics, and Extinction Events

In my book, Dark Matter and the Dinosaurs, I talk about the many different ways, you know, there's eight or nine that we deduce not just the existence of dark matter, but how much is there. And they all agree. Now, how do we know it's there? Because of its gravitational force. And individually, a particle doesn't have such a big gravitational force.

Lex Fridman Podcast
#403 โ€“ Lisa Randall: Dark Matter, Theoretical Physics, and Extinction Events

In my book, Dark Matter and the Dinosaurs, I talk about the many different ways, you know, there's eight or nine that we deduce not just the existence of dark matter, but how much is there. And they all agree. Now, how do we know it's there? Because of its gravitational force. And individually, a particle doesn't have such a big gravitational force.

Lex Fridman Podcast
#403 โ€“ Lisa Randall: Dark Matter, Theoretical Physics, and Extinction Events

In my book, Dark Matter and the Dinosaurs, I talk about the many different ways, you know, there's eight or nine that we deduce not just the existence of dark matter, but how much is there. And they all agree. Now, how do we know it's there? Because of its gravitational force. And individually, a particle doesn't have such a big gravitational force.

Lex Fridman Podcast
#403 โ€“ Lisa Randall: Dark Matter, Theoretical Physics, and Extinction Events

In fact, gravity is an extremely weak force compared to other forces we know about in nature. But there's a lot of dark matter out there. It carries a lot of energy, five times the amount of energy as the matter we know that's in atoms, et cetera. So you can ask, how should we think about it? Well, it's just another form of matter that doesn't interact with light, or at least as far as we know.

Lex Fridman Podcast
#403 โ€“ Lisa Randall: Dark Matter, Theoretical Physics, and Extinction Events

In fact, gravity is an extremely weak force compared to other forces we know about in nature. But there's a lot of dark matter out there. It carries a lot of energy, five times the amount of energy as the matter we know that's in atoms, et cetera. So you can ask, how should we think about it? Well, it's just another form of matter that doesn't interact with light, or at least as far as we know.

Lex Fridman Podcast
#403 โ€“ Lisa Randall: Dark Matter, Theoretical Physics, and Extinction Events

In fact, gravity is an extremely weak force compared to other forces we know about in nature. But there's a lot of dark matter out there. It carries a lot of energy, five times the amount of energy as the matter we know that's in atoms, et cetera. So you can ask, how should we think about it? Well, it's just another form of matter that doesn't interact with light, or at least as far as we know.

Lex Fridman Podcast
#403 โ€“ Lisa Randall: Dark Matter, Theoretical Physics, and Extinction Events

So it interacts gravitationally, it clumps, it forms galaxies, but it doesn't interact with light, which means we just don't see it. And most of our detection before gravitational wave detectors We only saw things because of their interactions with light in some sense.

Lex Fridman Podcast
#403 โ€“ Lisa Randall: Dark Matter, Theoretical Physics, and Extinction Events

So it interacts gravitationally, it clumps, it forms galaxies, but it doesn't interact with light, which means we just don't see it. And most of our detection before gravitational wave detectors We only saw things because of their interactions with light in some sense.

Lex Fridman Podcast
#403 โ€“ Lisa Randall: Dark Matter, Theoretical Physics, and Extinction Events

So it interacts gravitationally, it clumps, it forms galaxies, but it doesn't interact with light, which means we just don't see it. And most of our detection before gravitational wave detectors We only saw things because of their interactions with light in some sense.

Lex Fridman Podcast
#403 โ€“ Lisa Randall: Dark Matter, Theoretical Physics, and Extinction Events

So when we say it interacts just like any other form of matter, we have to be careful, because gravitationally, it interacts like other forms of matter, but it doesn't experience electromagnetism, which is why it has a different distribution. So in our galaxy, it's roughly spherical, unless it has its own interactions, that's another story.