How Fast Is It - 08 - Gravitational Waves

In this segment of the “How Fast Is It” video book, we cover Gravitational Waves. We examine just what a ‘ripple in space-time’ is. We’ll cover the wave properties and how they contract objects it encounters. We’ll examine binary star systems and the waves they create. This includes the properties of the binary encoded in the created gravitational wave including luminosity distance. We’ll use stars the size and mass of our Sun to calculate the expected amplitude and wavelength magnitudes. We’ll move from normal stars to neutron stars to stellar mass black holes. Along that progression, we’ll see their signature waveforms and build the gravitational wave sensitivity graph. We’ll cover the Hulse-Taylor pulsar (PSR B1913+16) and how it provided indirect evidence for the existence of gravitational waves. We’ll then cover direct detection with Michelson Interferometers. We’ll cover the LIGO technology and sensitivity and then examine the first detection event, and show how it fit the waveform and magnitudes for merging stellar black holes. We’ll include a look at the future of gravitational wave observatories. We’ll finish by covering the nature of gravitational waves created during the Big Bang and how they might be detected today.

Music
@01:06 Puccini - Madama Butterfly: Sir John Barbirolli; Coro del Teatro dell'Opera, Roma; from the album “Puccini: Madam Butterfly” 2006
@11:27 Handel - Concerto Grosso - Larghetto: Academy of St. Martin in the F; from the album “For the Hopeless Romantic” 2005
@19:46 Debussy: Rêverie, L. 68 - Rêve - Cello Concerto, op 104: James Judd and Julian Lloyd We; from the album “For the Hopeless Romantic” 2005
@27:52 Offenbach - Barcarolle- The Tales of Hoffman: Philharmonia Orchestra; from the album “Meditation - Classical Relaxation Vol. 5” 2009
@35:14 Mozart - Symphony No 40 First Movement: Berlin Symphony Orchestra; from the album “Mozart: Symphonies 35, 38 & 40” 1994
@44:29 Puccini - Madame Butterfly - Un Bel Di Vedremo: James Last And His Orchestra; from the album “James Last - 80 Greatest Hits” 2010

[richardmoffatt]

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[kfawell]

I'm always very happy to see a new video for two reasons. I know I'm going to enjoy it, and I'm glad to see he is still posting.

[elblack]

ASTRO GRANDPA IS FINE AND

WE LOVE YOU MAN, THANKS!

[zhiyan]

I Love the way You Talk, the way You Look, the way You Teaching Science.
Thank You Just for Being Sir David Butler.

[diverguy]

When I was a child in the early 80s we used to get information rich, non patronising science documentaries on the BBC all the time. Nowadays it's all pop science with emphasis on the celebrity, often a scientist, presenting it. Thank goodness for Mr Butler for his scientific content.

[PFworth]

David, my wife and I love these videos so much!! Thank you so much for your hard work. God bless.

[quantumcat]

What I like in Mr. David Butler lectures is that he do not try to be funny or anything, he does science, pure science, lots of it and I have to listen to his lecture a few times to get everything clear. The joy of understanding is my reward.

[nathanaeldownes]

Thank you so much for your videos. I felt a rough anxiety as I marveled at how violent it must have seemed to Einstein to think about two supermassive objects rotateing at half the speed of light (or realizing this to be a plausible occurrence). How does our little shoebox garden (solar system) last with such awesome power happening all throughout the cosmos, constantly?
Through your videos I find a deep love of the surreal epistemological fugue we live in now, compared to our Greek forefathers and all other thinkers of mankind’s world. Hard to reconcile much in light of such fantastic distances, such behemoth masses, and such terrifying forces.
I cannot believe we are close to detecting actual evidence of the big bang.
Thank you for giving my mind concepts to wander and wonder in the cosmos. God bless you

[neIntangible]

These immensely large and minutely small measurements are truly mind boggling... Thank you for helping to bring these concepts to all of us to appreciate.

[Mike-gepe]

Can’t wait to watch this after work. Always a good day for video from Mr. Butler 🙂

[PafeueG]

Im so glad he is still doing well and still uploading. I watch all yt Chanels like royal institute, psb space time, following scientist own yt chanels like Sabine H. Or Brian K...

BUT NOTHING COMES CLOSE TO UPLOADS FROM MR BUTLER! THANK YOU

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[avishcrasta]

Hello Mr. David! I wanted to thank you for continuing to make these videos for such a long time. I have come a long way in my quest to learn more about the universe and I simply wanted to thank you for being a part of my journey and show appreciation for all of your work that we learned from. What started a few years ago with a simple question has now become a lifelong obsession, and I would be grateful to continue learning from your videos for years to come. I hope you are in great health, its been a pleasure seeing your video pop up after a while. My sincerest regards Mr. David!

[godweenausten]

I'm so grateful for these videos, sir. It's beautiful.

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Mr. Butler, I adore your videos. I recommend them to everyone I can. I wish I had more than one like/sub to give, thank you so much!

[stacyhuen]

Perfect timing. I'm out on a back injury and love your long form content, especially when i have lots of time to watch it!

[AnalyticalReckoner]

Thank you for your hard work Mr. Butler!

[surendranmk]

There of course some thing special When you are teaching, every time I feel it. 100% I can follow deeply and exactly what you are talking about. Never a bit lost! What a great person of science you are!

[furankuchan]

This is great...more please...thank you.😊