The Lives of Stars - Professor Carolin Crawford
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- เผยแพร่เมื่อ 25 ก.พ. 2014
- Professor Carolin Crawford answers every question you've ever had about the most romantic stellar bodies, the stars: www.gresham.ac.uk/lectures-and...
Stars are an ubiquitous feature of our local Galactic environment. They do not last forever -- but form, develop and evolve over timescales of millions or billions of years, eventually to expire in dramatic style. We look at the lifecycles of different kinds of stars, and in particular, what they reveal about our own origins.
The transcript and downloadable versions of the lecture are available from the Gresham College website: www.gresham.ac.uk/lectures-and...
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There are so many star experts competing for TH-cam time but Carolin makes the actual study of stars so interesting!
A deep knowledge base clearly spoken with enthusiasm. A rare gift. Well done.
I great way to pass an hour. Never a dull moment. Thank you.
I want this professor back. She is outstanding!
What an excellent presentation.
love professor Crawford's lectures for both technical details and her enthusiasm. Add in those dorky librarian glasses ... i think i'm in love lol
Thanks professor Carolin for this interesting lecture.
Carolin, you are such a good listen. I've cut off halfway through the fifth of your talks today solely out of tiredness!
Simply unable to receive your fabulous messages!
Some of the most useful lectures I've seen so far.
Very good and informative lecture!
I was wondering, based on the idea of fusing different elements within shells, as the core moves on its way to carbon or iron, if the spectral can gives hints for what stage a star is in, and the associated elements it's currently creating in its core.
Mesmerising stuff.
14:30 Finding size of star.
Great talk! Is it possible that the underlying mechanisms that have been deduced for various features of stellar creation and lifecycles could be different in other galaxies?
20:40 @ 2 billion km is 1.84 lighthours incredible
When you look at different planets, it appears that not only time is relative, but also gravity and speed of rotation and…
The Principia has partly to be rewritten to applicate it to other planets, as also 9,81m/s2…
Or not?
Black holes are very different than stars?
Black holes are much colder than stars, so that objects from space don’t get burned, as with stars.
Objects from space can be “consumed,” so black holes can become more heavy.
And it can happen that temperature-differences are so great, that a black hole can (partially) evaporate.
Or not?
What is the main process behind how massive the star is going to be? Why some reach 15 mil degrees with one solar mass and others with 50 or even 100?
+paliony paliony More of the raw materials?
She's smart. That's hot :)
+Teapartyla very!
So are stars 😉
I 💘 C.C lectures, she's awesome!
11:50 The camera stays on the professor, not on her black body slide. That's a shame.
+RonJohn63 This is what drives me nuts with this lectures. One camera should be on the lecturer and one on the slides and put the ability to switch back and forth in the hands of an attendant.
did the TD director fall asleep?
I'm surprised that Hertz was only 37 when he died. So young; likewise Maxwell dying at aged 48. How would these two men fit in into today's theoretical environment?
What a story, my God...
And speaking of God...now that we possess sufficient knowledge to allow a woman to stand on a stage and tell us how stars form, how long they will live and how they will die, all while showing the equations that govern their existence and the pictures that testify to their terrible demise...well, stories about talking snakes and arks just don't seem that compelling anymore.
Beetle juice ... Aaarrgh!
Dust,gravity...though she didn't mention a single word about the electrical properties of the star clouds.
come on that was funny but seriously the sun look blue to me till it all goes blurry
13:15 colour discrimination *kappa*
come on then, don't leave me hanging, what colour's the sun when you look at it?
A few seconds wont hurt you - well, it will hurt you but it wont do any real damage and even if it does, then what with the botox injections and all that recently, probably Superdrug will have trained their shop staff to cut cataracts out for five pounds a piece by the middle of next week At that price I will guarantee the peepers of the first ten repliers* so give it a go and let me know...cheers, m'dears.
*one eye only - you should've shut the other one when you looked - I can't pay out on people stupider than me.....
Why I need to listen you? You told that stars can not have more mass than 100-120 solar masses. Good old scientific ignorance. Why then we now know for much more massive stars? For example, the most massive star that we know today is R136a1 with mass more than 300 times the mass of the Sun. That is mistake in your calulation not for some couple percent...that is mistake for almost 300%! What can you say now about your clever lecture? That remind me on the time when most of the astronomers claimed there is no other planets in our Galaxy...