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Charles Liu

๐Ÿ‘ค Speaker
1443 total appearances

Appearances Over Time

Podcast Appearances

StarTalk Radio
Cosmic Queries โ€“ Spontaneous Symmetry Breaking with Charles Liu

That's very interesting, Albert, but how are we ever going to figure that out?

StarTalk Radio
Cosmic Queries โ€“ Spontaneous Symmetry Breaking with Charles Liu

And a guy named Arthur Eddington says, I know how we can figure this out.

StarTalk Radio
Cosmic Queries โ€“ Spontaneous Symmetry Breaking with Charles Liu

And organizes an expedition to see a total solar eclipse and take photographs.

StarTalk Radio
Cosmic Queries โ€“ Spontaneous Symmetry Breaking with Charles Liu

And sure enough, he was able to measure with his colleagues that very amount of curvature in space-time that Einstein had predicted.

StarTalk Radio
Cosmic Queries โ€“ Spontaneous Symmetry Breaking with Charles Liu

And so people had been thinking about gravity ever since Newton's time.

StarTalk Radio
Cosmic Queries โ€“ Spontaneous Symmetry Breaking with Charles Liu

And then within that short 10, 15 year period, boom, we figured it out.

StarTalk Radio
Cosmic Queries โ€“ Spontaneous Symmetry Breaking with Charles Liu

But then we had to wait another long period of time to the next thing and the next thing.

StarTalk Radio
Cosmic Queries โ€“ Spontaneous Symmetry Breaking with Charles Liu

Right.

StarTalk Radio
Cosmic Queries โ€“ Spontaneous Symmetry Breaking with Charles Liu

No, yeah, you're completely right, Neil, in what you've said.

StarTalk Radio
Cosmic Queries โ€“ Spontaneous Symmetry Breaking with Charles Liu

The key there, Gary, to sort of circle back to your point, wasn't the eclipse, but it was to use the eclipse as a way to measure the curvature of space and time and thus the motions that are different.

StarTalk Radio
Cosmic Queries โ€“ Spontaneous Symmetry Breaking with Charles Liu

No, Chuck, I feel like that all the time.

StarTalk Radio
Cosmic Queries โ€“ Spontaneous Symmetry Breaking with Charles Liu

It really is amazing how smart all of our predecessors have been.

StarTalk Radio
Cosmic Queries โ€“ Spontaneous Symmetry Breaking with Charles Liu

In many cases, yes.

StarTalk Radio
Cosmic Queries โ€“ Spontaneous Symmetry Breaking with Charles Liu

One of my colleagues right now is doing an amazing kind of theoretical work about quantum information.

StarTalk Radio
Cosmic Queries โ€“ Spontaneous Symmetry Breaking with Charles Liu

When you're trying to send information through, say, fiber optics or something like that,

StarTalk Radio
Cosmic Queries โ€“ Spontaneous Symmetry Breaking with Charles Liu

You lose information because there's noise in the system.

StarTalk Radio
Cosmic Queries โ€“ Spontaneous Symmetry Breaking with Charles Liu

But this guy is like saying, you know what?

StarTalk Radio
Cosmic Queries โ€“ Spontaneous Symmetry Breaking with Charles Liu

I can take that noise and learn, find information in there that we thought was lost and thus make my quantum communications that much better.

StarTalk Radio
Cosmic Queries โ€“ Spontaneous Symmetry Breaking with Charles Liu

It's amazing.

StarTalk Radio
Cosmic Queries โ€“ Spontaneous Symmetry Breaking with Charles Liu

It's like thinking about dust in the solar system and the galaxy, blocking our view of things we want to see, but then turning it around and saying, you know what?