Brian Cox on The Life Cycle of Stars
Ғылым және технология
Professor Brian Cox explains in great detail the life cycle of stars. Stellar evolution is the process by which a star changes over the course of time. Brian Cox shares his knowledge about White Dwarfs, Red Giants, Supernovae, Black Holes and more.
Depending on the mass of the star, its lifetime can range from a few million years for the most massive, to TRILLIONS of years for the least massive, which is considerably longer than the age of the universe.
Brian Cox also explains how the merging of black holes and neutron stars gives us a much better understanding of our universe.
Stars with around ten or more times the mass of the Sun can explode in a supernova as their inert iron cores collapse into an extremely dense neutron star or black hole.
There is also a very energetic supernova thought to result from an extreme core-collapse scenario.
In this case, a massive star (about 30 solar masses) collapses to form a rotating black hole emitting twin energetic jets and surrounded by an accretion disk.
It is a type of stellar explosion that ejects material with an unusually high kinetic energy. This explosion is known as a Hypernova.
Hypernovae are one of the mechanisms for producing long gamma ray bursts, which range from 2 seconds to over a minute in duration.
There is also another strange cosmic beast that is a highly magnetized rotating neutron star that emits beams of electromagnetic radiation out of its magnetic poles. It is known as a Pulsar.
And again Brian Cox explains the details behind Pulsars.
#stars #space #science
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Пікірлер: 56
Wish he would do more talks! This is amazing stuff!
You can hear him smiling. ☺
@joeyp1927
3 ай бұрын
I think he would sound the same if he were narrating a Pop-Tart commercial. Always sounds completely mesmerized.
Brian Cox, I wish I had you as a teacher in high school.
We are 'temporary structures'. Yes it is unbelievable that we exist! I love this, thank you for this excellent upload ❤️
@ScienceTime24
Жыл бұрын
Glad you enjoyed it
One day, I want to be as happy a Brian Cox, everything he says, he says with a smile like hes got it all figured out but waiting for everyone else to catch up.
Great video, thanks for upload 🌠
@ScienceTime24
Жыл бұрын
Glad you enjoyed it
More stars than grains of sand. We are tiny
I really admire Brian Cox. He makes what are obviously incredibly complex subjects somewhat palatable for us simpletons.
The spectacular wit of Professor Brian Cox is to "Simplify" difficult topics..
Love you sir
Thank you…..
Thank you for making these fantastic videos. They bring me peace and make me feel more connected to where we come from .
Star Stuff
Просмотрела все документалки с проф. Брайном Коксом. Вообще не стареет! Так увлечен наукой, космосом, звездами!
"It is unbelievable we exist" Wow. I think that about sums it up.
When the next time I'm gonna have a sun-bath, I would not be able to stop myself from thinking about how the heat I'm feeling is being generated there. Writing it in words doesn't sound as fascinating as I'll be feeling during the next sun-bath
Realy I like this video its so so interestyng
Prof Cox makes the whole "Thing'"
We are star stuff which started 13.9billion yrs massive first generation stars only hydrogen. This is the perfect design of the universe. Look at earth's early history 2.5billionyrs of not much for life o2saturation etc
Sir Brian Cox I love the looks of your hair. and😅 that looks like my hair today.
I always thought they were like a pvc football you get from woolworths.
Would a black hole given enough time loosing mass due to hawking radiation return to normal space, ie become something slightly less than a black hole where its critical mass is. Maybe bounce back into normal space
@elongatedmusk3132
Жыл бұрын
🤔 I wonder
@steve1448
Жыл бұрын
There would be nothing left?
I would love to have just a minute amount of Brian’s intelligence and memory! Just a tiny tiny bit😕😏
Life cycle of stars: Being born into a broken home situation. Starting to do drugs as a teenager. Then finally being discovered by some powerful movie producer. Becoming famous and rich over night. Doing more drugs Dying at age 27. - Lifecycle of stars.
And heavier elements, in the Earth and biology, aren't from only one single Supernova explosion, but several. And, as et seems now, from merging of two neutron stars. The Universe is far beyond my understanding. But the absolute most interesting object in the entire World. Ah. Universe. 🙂👍
💐🙏
death gives life
@rebeccadubois8270
Жыл бұрын
Life gives death Mmm yum nutrients
2:00 almost all who r here love to face tht
Why so many star is in there? Is star a live thing?
@gulkhan6499
Жыл бұрын
This is what we are looking for ☺️
@gulkhan6499
Жыл бұрын
Maybe it is a living thing and answer maybe in biology
@rebeccadubois8270
Жыл бұрын
Stars aren't alive. Why would you think they are? Are volcanoes alive? Is a hurricane alive?
@BaponKar
Жыл бұрын
Look I know what is a living thing and what is not but if you see consciousness which embodied inside of materials i.e. non living things like atom....Do yo tell me a exact process that consciousness can purely extract from a living body I doubt that you can answer that .Then somewhere somehow something have a root of all consciousness then why not it is a star....If a planetary system don't have a star then can you imagine that there evolve a alive body?
@Anonymous-md2qp
Жыл бұрын
A star is not a living thing. It is made of mostly hydrogen and helium.
Existential crisis time
@rebeccadubois8270
Жыл бұрын
You'll get past it. It's easy enough
Brian Cox has the gift to make the WHOLE THING so naturally [logically] simple to understand. But what my tiny under developed low common denominator human intelligence wonders, notwithstanding asking WHY, what SUPRA INTELLIGENCE is at the HELM of IT ALL ,Or is such understanding beyond human intelligence visionary grasp, hence named GOD or GODS for reassurance's sake.
@dougieranger
Жыл бұрын
I didn’t hear anyone mention anything supernatural.
However we might one day we humans be imortal
Brian Cox, YOU are a STAHHHH
Correction; sir Brian Cox, is a universal treasure💡
Make Putin see this video. And try to make him understand!
To many ads…makes it difficult to keep the train of thought on a deeply interesting subject and ruins a very educational video
@elongatedmusk3132
Жыл бұрын
Amen to that