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Into the Impossible With Brian Keating

Delilah Gates: Black Hole Basics! (#156)

Into the Impossible With Brian Keating

Brian Keating

Science, Physics, Natural Sciences

4.71.1K Ratings

🗓️ 10 June 2021

⏱️ 24 minutes

🧾️ Download transcript

Summary

Harvard's Dr. Delilah Gates joins to discuss the fascinating & foreboding subject of black holes! Black holes are mysterious objects that have perplexed humanity for centuries, yet Delilah reveals new perspectives on their most inscrutable properties via in-depth studies of their spins, entropy, event horizons & more. Dr. Delilah Gates is Harvard's second African American woman to receive a Ph.D. in physics. Before joining Harvard, she earned two Bachelors of Science degrees: one in physics and one in math, from the University of Maryland, College Park. She studies high-spin black holes and gravity working to analytically characterize observational signatures of near extremal Kerr black holes using the emergent near-horizon conformal symmetry. Her interests include (near) extremal black hole geometries, black hole binaries, AdS/CFT correspondence, and black hole entropy. Find her on the web at https://bhi.fas.harvard.edu/people/delilah-gates Thanks to our sponsor! http://betterhelp.com/impossible Stay tuned for a 45 minute technical talk from Delilah soon. 00:00 Introduction 01:00 The Most Fascinating Thing 01:42 Could black holes be dark matter? 02:00 Crash Course: Black Hole History 05:00 The Information Loss Paradox 06:27 The Holographic Principle 09:00 Can you create a Black Hole in the Lab? 11:00 What's a Black Hole made of? 12:50 Are black holes primordial? 13:00 Are some black holes primordial, created in the Big Bang? 14:15 The Black Hole Diet? 14:30 Spaghettification! 15:30 Growing up and becoming a PhD student 20:00 The Nobel Prize, Barry Barish, Albert Einstein, and the Imposter Syndrome! 23:00 Happy Father's Day to Prof. S. James Gates Watch my interview with Jim Gates (Delilah's dad) Jim Gates: Proving Einstein RIGHT! The daring expedition that changed how we look at the Universe! https://www.youtube.com/watch?v=UzY4nwulC6E Please join my mailing list to get resources and enter giveaways to win a FREE copy of my book Losing the Nobel Prize: http://briankeating.com/mailing_list.php 📝 🎥 🎥 Watch my most popular videos🎥 🎥 Frank Wilczek https://youtu.be/3z8RqKMQHe0?sub_conf... Weinstein and Wolfram https://www.youtube.com/watch?v=OI0AZ... Sheldon Glashow: https://youtu.be/a0_iaWgxQtA?sub_conf... Michael Saylor The Physics of Bitcoin https://youtu.be/CaN_CDKqXOg?sub_conf... Sir Roger Penrose, Nobel Prize winner: https://www.youtube.com/watch?v=AMuqy... Jill Tarter https://youtu.be/O9K9OBd3vHk?sub_conf... Sara Seager Venus LIfe: https://youtu.be/QPsEDoOTU6k?sub_conf... Noam Chomsky: https://youtu.be/Iaz6JIxDh6Y?sub_conf... Sabine Hossenfelder: https://youtu.be/V6dMM2-X6nk?sub_conf... Sarah Scoles: https://youtu.be/apVKobWigMw Stephen Wolfram: https://youtu.be/nSAemRxzmXM 🏄‍♂️ Find me on Twitter at https://twitter.com/DrBrianKeating 🔥 Find me on Instagram at https://instagram.com/DrBrianKeating 📖 Buy my book LOSING THE NOBEL PRIZE: http://amzn.to/2sa5UpA 🔔 Subscribe for more great content https://www.youtube.com/DrBrianKeatin... ✍️Detailed Blog posts here: https://briankeating.com/blog.php 📧Join my mailing list: http://briankeating.com/mailing_list.php 👪Join my Facebook Group: https://facebook.com/losingthenobelprize 🎙️Please subscribe, rate, and review the INTO THE IMPOSSIBLE Podcast on iTunes: https://itunes.apple.com/us/podcast/i... 🎙️Listen on all other platforms: https://wavve.link/into A production of http://imagination.ucsd.edu/ Artwork by Sloan Sobie Join this channel to get access to perks: https://www.youtube.com/channel/UCmXH_moPhfkqCk6S3b9RWuw/join Support the podcast: https://www.patreon.com/drbriankeating And please join my mailing list to get resources and enter giveaways to win a FREE copy of my book (and more) http://briankeating.com/mailing_list.php 📝 Learn more about your ad choices. Visit megaphone.fm/adchoices

Transcript

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0:00.0

Any sufficiently advanced technology is indistinguishable from magic.

0:07.0

Welcome everybody to this episode of Into the Impossible with my guest

0:14.0

Dr. Delilah Gates. She is one of the world's experts in black hole physics

0:18.9

and the mysteries of black holes of which there are many. Delilah, tell me, what is your favorite most fascinating thing about

0:26.1

black holes?

0:27.1

I think my favorite thing is that black holes are the only object we know about around which light can travel in circular

0:35.2

or bound orbit. So there's this region around a black hole where if you could

0:39.5

sit in it and aim a light ray just right it would wind around the black hole and you would be able to then see the back of your head.

0:45.0

So I think that's pretty fascinating.

0:49.0

In particular, this implies that there are actually, whenever you view a black hole there are multiple

0:54.4

images of the emission around it stacked on top of each other.

0:58.5

That's just amazing.

1:00.3

And who was the first person to really think about black holes that they could even possibly be conceived of if not explored in study?

1:07.5

The first notion of a black hole actually came from way back in around 1783 when philosopher John Mitchell posited what if you

1:16.6

had a star that had such strong gravitational pool that the escape velocity from its surface was the speed of light or greater.

1:25.0

And today we obviously when we hear that we think, oh he's describing an event horizon.

1:30.0

But of course the idea didn't take off at the time.

1:33.0

So everyone was just like, okay, what?

1:35.6

Do people really think that dark matter could be made up of black holes?

1:39.0

That's something I get asked about quite frequently.

1:41.9

Probably not. I don't. I haven't followed literature in this specific

1:46.3

topic, but I think the idea more so is black holes can be made of ordinary matter but certainly if there is dark matter that you

...

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