When Black holes & Neutron Stars Collide - Brian Cox on Gravitational Waves

More than 100 years ago, Albert Einstein came up with many ideas about gravity and space. In Einstein's general theory of relativity, gravity is treated as a phenomenon resulting from the curvature of spacetime. This curvature is caused by the presence of mass. Generally, the more mass that is contained within a given volume of space, the greater the curvature of spacetime will be at the boundary of its volume.

English physicist and professor of particle physics in the School of Physics and Astronomy at the University of Manchester, Brian Cox explains the science behind gravitational waves. He mentions how every massive object that accelerates produces gravitational waves. Brian Cox also explains in layman terms how LIGO is able to detect gravitational waves caused by some of the most energetic events in the Universe—colliding black holes, merging neutron stars, exploding stars, and possibly even the birth of the Universe itself.

100 years after Einstein came up with the general theory of relativity, scientists detected gravitational waves for the first time. These first gravitational waves happened when two black holes crashed into one another.
The two blackholes that merged formed a single blackhole 62 times the mass of our sun. As they merged in about 0.2 seconds the equivalent of 3 times the mass of our Sun was lost through gravitational waves emission. In comparison our Sun has lost a mere 0.03 percent of its mass in 5 billion years through electromagnetic emission.

Many models of the Universe suggest that there was an inflationary epoch in the early history of the Universe when space expanded by a large factor in a very short amount of time. If this expansion was not symmetric in all directions, it may have emitted gravitational radiation detectable today as a gravitational wave background. This background signal is too weak for any currently operational gravitational wave detector to observe. However, LIGO is just the first step and with future instruments we could potentially pickup gravitational waves that rippled through the first moments of the Big Bang that would solve one of the greatest mysteries in physics.

#ProfBrianCox #wormhole #science

Sources:
LIGO Scientific Collaboration

Brian Cox at National Gallery Singapore

Brian Cox Lecture - GCSE Science brought down to Earth

LIGO Discovers Binary Black Hole Merger: 100 Years of Gravitational Waves

JPL Propulsion Lab - Dropping In With Gravitational Waves

What Is a Gravitational Wave?

Gravity
"First Second of the Big Bang". How The Universe Works 3. 2014. Discovery Science

How gravitational waves could solve some of the Universe’s deepest mysteries

LIGO-Virgo-KAGRA finds elusive mergers of black holes with neutron stars

Inflationary Cosmology: From Theory to Observations

"Professor Brian Cox at BETT 2020" by p_a_h is licensed under CC BY 2.0

[markfoz]

Funny that I’ve found this love for learning years after leaving school. Just wish my brain could compute the size of things described here. 🤯

[Miki]

Great lecture. What scare me about black holes is that they can merge. We live in very weird and magical world, and most people on earth don't even realize or care.

[CarlesMP]

I love Brian's voice. You can tell how passionate he is

[commonsense]

Really enjoy watching Brian. I was however, hoping for in-depth specifics of a collision between a black hole & neutron star...as the title lead me to believe.

[jamestnov]

We can eliminate the fact that our galaxy is fine tuned for life. This was the end quote. Can the presenter please expand on this?

[timcross]

There is something about Brian's voice that makes me feel like a better type of human is speaking. I'm well educated, not gay, and don't have a similar reaction to other speakers. The effect isn't so noticable here, but in other lectures, I was moved in an emotional way.

[guillaumemaurice]

That was very interesting. Thank you for sharing this.

[diagnostician]

The Hanford observatory is not near Seattle. It's actually a few miles north of richland Washington. It's about a half-hour drive from where i live in the tri-cities area. They also have a science center located there if anyone is ever interested in visiting.

[TheDaveSharman]

Brian's portrayal of 80 year old billionaire media magnate Logan Roy in the TV show 'Succession' is pure genius, didn’t know the guy could act.

[Wilky]

Since gravitational waves can't be stopped by anything it can make us to understand part of the universe before de photon Era that's it ?

[sinebar]

Is it possible that a black hole actually becomes a very massive particle?  It has mass,   charge,   angular momentum and it’s infinitesimally small.  Kind of sounds like a particle. Perhaps a gravity made super massive particle.

[_Caedwyn]

is it possible to have max tegmark, neil degrasse tyson, brian cox, brian greene, michio kaku, jenna levigne all at the same room ???

[WKrealestateNYC]

The thought of what was before the Big Bang, blows my mind every time. I wonder what created nothing before this massive explosion that created our current uniform. Then, when I hear about a multiverse. I complete lose my $hit. Blessed to have thinkers like Einstein, and Brian Cox to think this existential theories for us.

[alexisaac]

Love this guys knowledge man. He all over the place..

[hawkkim]

I don't understand this. So basically space/time is shaking due to an impact of two massive black holes colliding. Intuitively object in the shaking space/time should must be shaking along the space/time as well. Then do we detect what and how with those two lasers?

[davidczajkowski]

I’ve watched many collision models and they are all devastating (magnatars, neutron stars, black holes), but what is the result of a star that’s still creating nuclear fusion colliding with a neutron star or white dwarf? Still supernova? A collision with a Red Giants like Beetleguise would have the neutron star so far from the core of Beetleguise as it enters it’s outer edge…anyone that knows please answer.

[leannetompkins]

Wow, wow, Wowsaaaa 😁
Holla!!!!

Thank you!
Bring me More!!!

[soppingclam]

Hey Brian, do you ever have a Q&A time or ponder and explain some questions people might come up with but don't quite have the skills you do?

[AntoZeus]

Thanks for upload, always a treat to learn something instead of wasting my time watching so called ghost/UFO footage lol love and luck from Ireland ☘❤☘❤☘

[Sina-sdqp]

What should a regular person do with this information?