Janna Levin Public Lecture: Black Hole Blues and Other Songs from Outer Space

In her public lecture at Perimeter on May 3, 2017, Dr. Janna Levin discussed the profound discovery of gravitational waves made by LIGO in 2015, and their ongoing importance to the study of physics.

[yendorelrae]

Another great lecture by another great, strong, intelligent woman of science! She is just great! Thanks Perimeter

[gabrielasecara]

This was a great lecture! Thank you Perimeter!

[PrivasGuitar]

Unreal. Thanks for the lecture, Dr. Levin, and the upload, Perimeter Institute.

[ZaphodBeeb]

I read the book first. It was much more about the characters who designed and built LIGO and the interplay between their personalities, rather than the science.  But then I had to look for a video on YouTube, because I found the story so fascinating and I wanted to see how she covered the science in the lecture.  I was not disappointed, it was a really good lecture, well delivered. The visuals, soundtrack and simulations were excellent. Full marks, Perimeter !

[tracykarinp]

What an Awesome Lecture! Thank you Perimeter and Dr. Janna Levin...will certainly share this on my social media sites! Regards!

[Lunar_lunaa]

She’s so fun to listen to. Great unique talk.

[TerryPullen]

Completely blows my mind. The idea that LIGO can detect the motion caused by black holes 1.3 billion light years away. Absolutely incredible, likely the greatest scientific achievement of humankind to date.

[WaySafe]

P.I. does an excellent job at representing The Work.

[HarryNicNicholas]

one of the hurdles to realising that the ISS and it's occupants are falling is that we always picture images of orbits horizontally, i was chatting with a friend trying to explain newton and she said, hang on, can you do that hand waving up and down instead of horizontally, cos i can't picture "falling" until it's a vertical diagram. just a thought, people have trouble grasping scientific notions, and we (nearly always) picture orbits on a horizontal plane "how can they be falling" - it's good you explain that a black hole is empty space, it's another source of confusion about picturing all this to think it's a massive black object rather than a massive black void. i think i'm finally getting my head around how time gets warped along with space, finally getting a handle on what space/time really means.

[Omni-Kriss]

Awesome :) Loved the question and answering seqtion!

[tompyszczuk]

Awesome lecture like always :) I especially loved the person knitting a cap or something in the middle of it :D Of course I am joking. I hope detecting gravitional waves open a new chapter in astronomy and physics for us :)

[antongrigoruk]

Brilliant astrophysicist and perfect science communicator!

[Curelet]

Cool animation of observable Universe from Sloan Digital Sky Survey at minute 8:00 proving Universe's immensity. Number of galaxies in the observable Universe at same scale with number of starts in our galaxy, Milky Way.

[makinjica]

liked her emotional response after reading from that book .

[davidwilkie]

From First Principle Observation approach, let's relable these "Search For" Sciencing topics as QM-TIME Completeness Function, Euler's e-Pi-i 1-0-infinity instantaneous Singularity Positioning Discoveries, in Resonance Fusion-Fission Reciproction-recirculation Bonding, Clarified through Quantum Mechanics. (?)

[danielvazquez]

Wait a second; if the further out one looks the further back in time it is then why couldn’t someone record the same event over and over and over?

[WildSoftail]

I wonder, now that gravity waves have been proven as real, how long before science figures out a way to actually surf these waves in terms of space travel? And, I then wonder about things like "Rogue Gravitational Waves" similar to ocean waves and the occasional Rogue wave that grows in energy, power, and size by catching, and consuming other waves in there path

[venkateshbabu]

How do you prove dark matter vibrations create microgravity.

[Les]

I'm playing my electric guitar watching this. Itr's not plugged in. It surely is making sounds.

If she wanted to use guitars to describe LIGO it would be this : imagine two strings playing the same note (frequency) and then one string becomes stretched and the frequency slightly changes. You would clearly hear that the strings have gone out of tune with each other. This is what LIGO does, but with light.

[غيثالجميلي-كس]

توصلت إلى صيغه رياضيه تفسر انبعاث وامتصاص اشعه الكون من موجات الجاذبيه