@27mins, from what I understand it's not that the Universe was so dense that the light could not get through, it's that it was so hot that all the electrons could not be captured by the atoms, which is why the photons could not get through. Basically it was an opaque plasma.
A messy lecture . I'm sorry to say so . Professor Silk may be very clever and wise etc , but apart from his umms , he very often drags in details that are A only remotely relevant and B very hard to follow as many of them end in rapid mumblings . But still , i enjoyed it . The topic is - of course - fascinating , Lemaitre's was definitely a creative mind of whom i knew very little until this lecture , and speculations about what's beyond the microwave curtain are always entertaining . And i to-tal-ly adore the hand-drawn sheets . Yes . That's where mr Silk really touched a gentle spot inside my soul . So thank you once again , Gresham College .
If the universe was finite to begin with, how could it then become infinite? Unless you added infinity to it, in which case, where did the infinity come from? If you say it is because the expansion is infinite, then the universe is still finite, because the expansion, no matter how fast it is, will take an infinite length of time to reach infinity. The Universe must be finite, even if it is beyond our ability to measure.
Infinity itself prevents the universe from becoming infinite... (to 'become' means to have bounds, and, sorry to say, infinity is boundless, hence it does not exist in the physical world, hence it is the 'Great Nothingness' in which 'Everything' exists, though infinity also precludes 'everything' - you can never have it within an infinity... same goes for 'nothing' (in the other size direction), and the same goes for time and eternity - eternity is the Great Timelessness in which all change occurs (and remember, you do not want to go back in 'time' (where all you have to do is run your clock backwards, time being a tool), you want to 'go back in 'change'... back to infinity, we do not know how much 'finite' is in it, or if there is 'finite'; reason, given infinity, would say 'no'...
It must only be finite if you cannot accept the impossibility of ever being able to 'wrap you mind around the actual meaning of infinite. (you are not alone on this limitation , NO human can , Thus a need for the word ...., unknown, a concept that some relegate to the idea of God)
They like to talk about infinites because that is what their math says, so they go there if they do not have the information. Neutron stars are like a big ball of rotating iron, you add enough mass and light cannot escape and the curtain goes down and all of a sudden that iron ball become and infinite density singularity, really because the observational curtain goes down it instantly will change. Obviously the model starts with all the mass of the universe in a black hole, it has an even horizon that can be calculated. Then there is a required expansion rate to rip this black hole apart, our current expansion rate can't move the particle of the moon or earth, let alone particles in any current black hole. At some point the expansion has to slow to let the particles for atomic particles and the atomic diagram he showed, but not so slow that everything ends up clumping into one or more black holes again. This recipe of minimum and maximum expansion rates with real values, along with the reason for each rate, would be more informative. The time (what ever that means in an early universe with particles zooming along at fractional light speeds) and size snapshots do not give justice to an amazing process that ripped apart a universe size black hole then changed speed to allow what we have today to form. Modelers like to say infinity, very large (like all the mass of the universe) will do well enough if you are looking for some effect the model predicts like quantum gravity.
Professor Silk is correct in saying that Lemaitre became an advisor to Pope Pius XII, but is completely wrong to have described Pius as a “close acquaintance” of Hitler’s. However one views Pius’ record during the Second World War, there is no evidence that he, and Hitler ever even met, much less became “close” in any sense of the word. Even Cornwell, the pop-“historian” author of “Hitler’s Pope” didn’t make such a claim.
Can someone please explain what's a "perfect furnace?" Also , could it be possible that the first three minutes after the big bang were eternal specifically the fist seconds, (time becoming so dilated to become asymptotic due to the clustering of matter) something that would make a first "explosion" impossible?
I think what he meant was....A perfect furnace basically relates to a hot object, at thermal equilibrium. Basically 100% pure hot all over. Imagine putting a pot in the oven for 1000 years and then taking it out....it might just about be exactly the same temperature at every point (atom). And hot objects emit this blackbody radiation. If something was perfectly hot all over it would give off exactly the same blackbody radiation all over....hence just the colour purple everywhere in the slide of the universe he showed....if the early universe was perfectly hot all over it would look purely one colour. This is the perfect furnace I think he meant.
PS a new mythology: Once there was a point in space that exploded. In 380000 years it created a perfect furnace which created heavier elements that came together to make stars that created heavier elements etc. etc. etc. Eventually, in 14.5 Billion years, the ash from this furnace and stars came together to create our solar system and us. Now that is a beautiful creation. We are products of millions of stars giving elements to our creation.
@@davidroberts1689 Except things don''t explode in space. To explode you need oxygen (explosion is just rapid combustion) whih at the start of the universe just aint there....no elements were, it was too hot and dense for atoms and hence elements to form.
Yeah but Einsteins problems were not in understanding it...he understood it just fine....he was one of the early pioneers of Quantum Mechanics....his problem was believing it...
Gamow was a media hog. As Alpher's boss, Alpher couldn't very well tell him no to putting Gamow's name on the paper. As a result, only now is Ralph Alpher being credited with the paper and the contents. Everyone seeing Gamow's and Bethe's names naturally assumed that the work was theirs, which is what Gamow wanted. Gamow could have ended Alpher's career before it ever got started.
Well... I found elegant finishing with more questions than with nonsure 'perfect' answers... 1597 really? That was not a college but a relegious summer school... 😁
Imagine a bubble bath where each bubble represents a universe...Bubbles are colliding, expanding and contracting....Big Bangs happen all the time according to Mr cuckoo for Kaku.
It's Umm's Law of Relativity. I went to the bathroom to take a, umm, and on the way, I meet Einstien who was talking to Kronos about, umm, the relative matter of time. "Do you have time to spare, " inquired Kronos, gazing at Einstien precariously over the redshift of the horizon. "Ummm? Can you spare a sec," replied Einstien, gazing at his Wath of Relativity. "What do you think of the BB? "I like her. She was over my crib yesterday." "I don't mean Bertha Butt, I mean the Big Bang." "Ummm? Oh! Ummm?" Well? What do you think? "Don't rush me. I'm contemplating my answer." "Well?" "Ummm? I have formulated my answer," "Yes?" "The universe is a nice place to visit, but I would not want to live there."
For a professor he is lacking a skill of systematic, concise and clear explanation. Knowing is one thing but passing it onto others require completely different set of skills. It is like listening to my neighbour telling about his holiday.......
Hmm...Professors really do show their limit has been over reached...and why suspicion of Their lectures is paramount to you being even more confused than he is! Amazing how The intellectuals? Keep glossing over the Quintessentials! This Start Of The Big Bang? And Inflation.....Where did this millions of degrees ! of degrees centigrade come from? And this “All starts?” Now I would have thought in the beginning there was no time....because the Universe was Expanding faster than Time? Which these Speakers now say Nothing can go faster than Time? But they keep glossing over the obvious..as if it gives them the route we all should follow....I would suggest “develop your own theories” they are just as likely to be correct as his. Perhaps he is communicating with a very young audience...I hope..! or our future is a bit more than bleak. RDR
Sir, if you hear my theory about the formation of the Universe, you will get a perfect idea about the formation of the Universe . In my view, all the information given by you in this episode is not correct . I don't know how the World know about the formation of the Universe . As per my theory all the information in Internet about the formation of the Universe is not correct . ( I don't know English properly ) .
WOW EXCELLENT !!!!!! The most credible explanation of the BIG BANG which is too simplified in the Bible's GENESIS ... lots of humor !!! love the question " what did God do before the BIG Bang ...?" answer - - - He prepared HELL for those who ask this question _LOL hahaha ... actually ST. AUGUSTINE replied (please watch the video) ENJOY !!!!!
I enjoyed the talk it gave historical back ground and full story of current model ( dogma). with all the false elements in the model, it is no better than religion minister trying to prove god. Professor Joseph Silk, if you want to know, what bits are correct and all the wrong parts contact me. if you want to come up with correct version yourself. you need to know structure of photon, electron, nuclei and how they interact with gravity. that will give understanding of space bodies structure which will help you to understand evolution of universe. all the current models of space and matter are wrong. full detail in my 1975 Bremen summerhouse notes. big bang, inflation ect is the result of misunderstanding the data and active imagination of theoreticians. universe is not expanding or getting faster. there was no big bang or inflation. there is no black hole. it is lack of mankind understanding of the reason for observation. MG1
How about you send it to him scribbled on a roll of toilet paper? The youtube comment section is already far too sophisticated and professional as to allow the exchange of groundbreaking science. Oh, and maybe you'd like to send additional rolls to Nature and Science journals. Or have the patent illuminati stolen all your TP?
boycot gugle I don't need to do that. NSA & GCHQ have been collecting my rubbish for their scientist past 40 years. when I put it on internet. they blocked public. Now I just tell them they are wrong. so they look for correct version. our people are releasing my 1975 notes discreetly to selected scientist in Russia, India and China. MG1
it is a bit too late for that specially considering I am 75 and I have already set my brain to degenerate. our people have the copy of my notes and they have full instruction who to give & when. MG1
been watching now for over 3 minutes and he has just got his microphone plugged in. Title misleading to dyslexics! I thought it was a three minute video about creation myth kind of stuff.
Great lecture, he presents so much interesting information in an easy to understand way, thank you for providing this.
Hmm...Not sure on that...What about the 3 Minutes before Big Bang.....? Most important Question ever to answer? RDR
Agree, he doesn't patronise the audience as many presenters of this stuff do. A fair few pathetic comments about his presentation.
@27mins, from what I understand it's not that the Universe was so dense that the light could not get through, it's that it was so hot that all the electrons could not be captured by the atoms, which is why the photons could not get through. Basically it was an opaque plasma.
A messy lecture . I'm sorry to say so .
Professor Silk may be very clever and wise etc , but apart from his umms , he very often drags in details that are A only remotely relevant and B very hard to follow as many of them end in rapid mumblings .
But still , i enjoyed it . The topic is - of course - fascinating , Lemaitre's was definitely a creative mind of whom i knew very little until this lecture , and speculations about what's beyond the microwave curtain are always entertaining .
And i to-tal-ly adore the hand-drawn sheets . Yes . That's where mr Silk really touched a gentle spot inside my soul .
So thank you once again , Gresham College .
Has anyone noticed the amazing resemblance between Professor Silk and Fred Hoyle?
Ya forgot about me snapping my fingers. That's how ya all got here. So respect
If the universe was finite to begin with, how could it then become infinite? Unless you added infinity to it, in which case, where did the infinity come from? If you say it is because the expansion is infinite, then the universe is still finite, because the expansion, no matter how fast it is, will take an infinite length of time to reach infinity. The Universe must be finite, even if it is beyond our ability to measure.
My thought exactly.
Infinity itself prevents the universe from becoming infinite... (to 'become' means to have bounds, and, sorry to say, infinity is boundless, hence it does not exist in the physical world, hence it is the 'Great Nothingness' in which 'Everything' exists, though infinity also precludes 'everything' - you can never have it within an infinity... same goes for 'nothing' (in the other size direction), and the same goes for time and eternity - eternity is the Great Timelessness in which all change occurs (and remember, you do not want to go back in 'time' (where all you have to do is run your clock backwards, time being a tool), you want to 'go back in 'change'... back to infinity, we do not know how much 'finite' is in it, or if there is 'finite'; reason, given infinity, would say 'no'...
It must only be finite if you cannot accept the impossibility of ever being able to 'wrap you mind around the actual meaning of infinite. (you are not alone on this limitation , NO human can , Thus a need for the word ...., unknown, a concept that some relegate to the idea of God)
They like to talk about infinites because that is what their math says, so they go there if they do not have the information. Neutron stars are like a big ball of rotating iron, you add enough mass and light cannot escape and the curtain goes down and all of a sudden that iron ball become and infinite density singularity, really because the observational curtain goes down it instantly will change. Obviously the model starts with all the mass of the universe in a black hole, it has an even horizon that can be calculated. Then there is a required expansion rate to rip this black hole apart, our current expansion rate can't move the particle of the moon or earth, let alone particles in any current black hole. At some point the expansion has to slow to let the particles for atomic particles and the atomic diagram he showed, but not so slow that everything ends up clumping into one or more black holes again. This recipe of minimum and maximum expansion rates with real values, along with the reason for each rate, would be more informative. The time (what ever that means in an early universe with particles zooming along at fractional light speeds) and size snapshots do not give justice to an amazing process that ripped apart a universe size black hole then changed speed to allow what we have today to form. Modelers like to say infinity, very large (like all the mass of the universe) will do well enough if you are looking for some effect the model predicts like quantum gravity.
Professor Silk is correct in saying that Lemaitre became an advisor to Pope Pius XII, but is completely wrong to have described Pius as a “close acquaintance” of Hitler’s. However one views Pius’ record during the Second World War, there is no evidence that he, and Hitler ever even met, much less became “close” in any sense of the word. Even Cornwell, the pop-“historian” author of “Hitler’s Pope” didn’t make such a claim.
Chesire Cat I
Chesire Cat i
Once he rolled out that whopper of a falsehood about Pius XII, I was done with the lecture. Can't take him seriously.
Christian Lee Agree
Always imagined Lemaitre studying in a monastery not at MIT
Can someone please explain what's a "perfect furnace?"
Also , could it be possible that the first three minutes after the big bang were eternal specifically the fist seconds, (time becoming so dilated to become asymptotic due to the clustering of matter) something that would make a first "explosion" impossible?
I think what he meant was....A perfect furnace basically relates to a hot object, at thermal equilibrium. Basically 100% pure hot all over. Imagine putting a pot in the oven for 1000 years and then taking it out....it might just about be exactly the same temperature at every point (atom). And hot objects emit this blackbody radiation. If something was perfectly hot all over it would give off exactly the same blackbody radiation all over....hence just the colour purple everywhere in the slide of the universe he showed....if the early universe was perfectly hot all over it would look purely one colour. This is the perfect furnace I think he meant.
Well presented!
Remember, Einstien had problems with quantum mechanics...as we all do (just trying to understand it). lol
PS a new mythology: Once there was a point in space that exploded. In 380000 years it created a perfect furnace which created heavier elements that came together to make stars that created heavier elements etc. etc. etc. Eventually, in 14.5 Billion years, the ash from this furnace and stars came together to create our solar system and us.
Now that is a beautiful creation. We are products of millions of stars giving elements to our creation.
@@davidroberts1689 Except things don''t explode in space. To explode you need oxygen (explosion is just rapid combustion) whih at the start of the universe just aint there....no elements were, it was too hot and dense for atoms and hence elements to form.
Yeah but Einsteins problems were not in understanding it...he understood it just fine....he was one of the early pioneers of Quantum Mechanics....his problem was believing it...
Gamow was a media hog. As Alpher's boss, Alpher couldn't very well tell him no to putting Gamow's name on the paper. As a result, only now is Ralph Alpher being credited with the paper and the contents. Everyone seeing Gamow's and Bethe's names naturally assumed that the work was theirs, which is what Gamow wanted. Gamow could have ended Alpher's career before it ever got started.
"I'm gonna go get the papers, get the papers."
Like you said at the beginning of this, there is a lot that you dont know !
Errrrrrrrrrrm.................?
At nine minuts, fifty seconds you called Einstein for Hubble. That´s silly.
15:19 ??? But four protons is Beryllium.
RonJohn63 you arenot taken neutron into account
Of the four protons two will join with 2 election to form two neutrons.
Well... I found elegant finishing with more questions than with nonsure 'perfect' answers... 1597 really? That was not a college but a relegious summer school... 😁
Imagine a bubble bath where each bubble represents a universe...Bubbles are colliding, expanding and contracting....Big Bangs happen all the time according to Mr cuckoo for Kaku.
but he lacks the 'evidence' for it
Umm
It's Umm's Law of Relativity. I went to the bathroom to take a, umm, and on the way, I meet Einstien who was talking to Kronos about, umm, the relative matter of time. "Do you have time to spare, " inquired Kronos, gazing at Einstien precariously over the redshift of the horizon. "Ummm? Can you spare a sec," replied Einstien, gazing at his Wath of Relativity. "What do you think of the BB? "I like her. She was over my crib yesterday." "I don't mean Bertha Butt, I mean the Big Bang." "Ummm? Oh! Ummm?" Well? What do you think? "Don't rush me. I'm contemplating my answer." "Well?" "Ummm? I have formulated my answer," "Yes?" "The universe is a nice place to visit, but I would not want to live there."
Ummm ... Brilliant !
For a professor he is lacking a skill of systematic, concise and clear explanation. Knowing is one thing but passing it onto others require completely different set of skills. It is like listening to my neighbour telling about his holiday.......
Not everyone is a great speaker, but the guy knows what he's talking about.
@@tomekkruk6147 I think so, although with dark energy he blundered very hard.
um um um um umum
Hmm...Professors really do show their limit has been over reached...and why suspicion of Their lectures is paramount to you being even more confused than he is! Amazing how The intellectuals? Keep glossing over the Quintessentials! This Start Of The Big Bang? And Inflation.....Where did this millions of degrees ! of degrees centigrade come from? And this “All starts?” Now I would have thought in the beginning there was no time....because the Universe was Expanding faster than Time? Which these Speakers now say Nothing can go faster than Time? But they keep glossing over the obvious..as if it gives them the route we all should follow....I would suggest “develop your own theories” they are just as likely to be correct as his. Perhaps he is communicating with a very young audience...I hope..! or our future is a bit more than bleak. RDR
Sir, if you hear my theory about the formation of the Universe, you will get a perfect idea about the formation of the Universe . In my view, all the information given by you in this episode is not correct . I don't know how the World know about the formation of the Universe . As per my theory all the information in Internet about the formation of the Universe is not correct . ( I don't know English properly ) .
He has got a lot better at this !ecture business already. That's why he talk and i listen
Uhmmm
WOW EXCELLENT !!!!!! The most credible explanation of the BIG BANG which is too simplified in the Bible's GENESIS ... lots of humor !!! love the question " what did God do before the BIG Bang ...?" answer - - - He prepared HELL for those who ask this question _LOL hahaha ... actually ST. AUGUSTINE replied (please watch the video) ENJOY !!!!!
A fascinating topic utterly despoiled by the speaker's appalling delivery. Shame.
i lasted 2 minutes ummmm sorry!
dixitque Deus fiat lux et facta est lux
this man is giving a lecture about something he doesnt even know is real ??????
I enjoyed the talk it gave historical back ground and full story of current model ( dogma). with all the false elements in the model, it is no better than religion minister trying to prove god. Professor Joseph Silk, if you want to know, what bits are correct and all the wrong parts contact me. if you want to come up with correct version yourself. you need to know structure of photon, electron, nuclei and how they interact with gravity. that will give understanding of space bodies structure which will help you to understand evolution of universe. all the current models of space and matter are wrong. full detail in my 1975 Bremen summerhouse notes. big bang, inflation ect is the result of misunderstanding the data and active imagination of theoreticians. universe is not expanding or getting faster. there was no big bang or inflation. there is no black hole. it is lack of mankind understanding of the reason for observation. MG1
How about you send it to him scribbled on a roll of toilet paper? The youtube comment section is already far too sophisticated and professional as to allow the exchange of groundbreaking science. Oh, and maybe you'd like to send additional rolls to Nature and Science journals. Or have the patent illuminati stolen all your TP?
boycot gugle I don't need to do that. NSA & GCHQ have been collecting my rubbish for their scientist past 40 years. when I put it on internet. they blocked public. Now I just tell them they are wrong. so they look for correct version. our people are releasing my 1975 notes discreetly to selected scientist in Russia, India and China. MG1
you should line the walls of your flat with lead.
it is a bit too late for that specially considering I am 75 and I have already set my brain to degenerate. our people have the copy of my notes and they have full instruction who to give & when. MG1
mg1s I think your meds are not working..
I am 100% sure of GOD!!!!!!!!!!!!!!!!!!! UM........????????
You have a problem sir...
18 ums in the - um - first minute... and a constant lip smacker as well
Oh no...I can't take this make-believe. Men love Big Bangs..(metaphor?) and guns and bombs and noise. It's all Boy's Toys.
Sorry it was not done with feathers, scented candles and Yani music.
If you say "Yanni" out loud 3 times,he will appear and play is horrible music at you until you die in agony. Average time: 4 mins 13 secs
been watching now for over 3 minutes and he has just got his microphone plugged in. Title misleading to dyslexics! I thought it was a three minute video about creation myth kind of stuff.