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0:06 Frank Wilczek image: www.frankawilczek.com/
2:13 Virginia Knight / Cotham School, CC BY-SA 2.0 DEED
Attribution-ShareAlike 2.0 Generic, via Wikimedia Commons
10:13 Hanno Rein, CC BY-SA 3.0 creativecommons.org/licenses/by-sa/3.0 via Wikimedia Commons
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Views : 441,452
Genre: Science & Technology
Date of upload: Mar 25, 2024 ^^
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RYD date created : 2024-05-05T03:38:35.069249Z
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YouTube Comments - 516 Comments
Top Comments of this video!! :3
I met Paul Dirac, near the end of his life, when he was professor emeritus at Florida State University. I was a typist for the Physics Dept. in 1983, and I typed what may have been his last paper (or one of his last), an overview of the field of physics. I kept a Xerox copy for many years, and finally donated it to the organization that preserves his legacy. I remember him as being very cordial to me.
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My favourite Dirac story comes courtesy of my old maths supervisor at Cambridge, who knew him personally. He recounted how he and his wife had entertained Dirac to dinner. As usual, Dirac said nothing the entire evening, but just sat there quietly observing the wife knitting, which he had never seen before but which clearly fascinated him. As he left at the end of the evening, he made a single remark: that there were just two distinct ways of creating a stitch. He was right, of course; but imagine having the kind of mind which could analyse knitting in the abstract and reach that conclusion!
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Sometimes I feel so sad that the life of such important and genius scintists go unnoticed, whereas the life of celebrities are celebrated by the masses
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I'm an astrophysicist and long-time admirer of Dirac. This brief bio of his life was exceptionally well-produced; bravo, and thanks for giving one of my scientific heroes the attention he is due. As a personal story, I once was invited to a scientific meeting at Cambridge, and they housed us on campus, staying in what had been faculty chambers. The room I was given I was told was once Dirac's quarters. They didn't know of my long-time admiration of Dirac, so it wasn't planned; what an unexpected thrill! āTom
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I was a student at FSU in 1982-1984. I saw him weekly at the Love and or Physics classrooms. Unless you knew who he was, he was just another older man who was incredibly nice and polite. Always a smile.
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Dirac achieved something very rare in physics - he theoretically predicted a new phenomenon (anti-matter) through pure math.
Not only that, but much of the math of Dirac was derived earlier by the mathematicians Eli Cartan and Wilhelm Killing. They studied the symmetries of space, and found that rotations in 3d space are equivalent to rotations in a special 2d space. This allowed Dirac to take the "square root" of the KleināGordon equation, which produced a linear and relativistic quantum wave equation (the Dirac equation). Dirac found that his equation has two solutions, one for electrons and another for anti-electrons (positrons).
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Another perfect, yet sad example of how a wrong-headed parent screwed up their children's self-esteem. One son, dead by his own hand, the other, after decades of acclaim, only able to see his imagined failings. There's more to learn here than just the beauty and importance of Professor Dirac's equations. The science discussed in this interesting report is above my head -- not much I can do with it other than ponder its depths. The unspoken lesson here is one we can all learn from. I just hope that other viewers rethink how children are nurtured and raised.
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Given that he was apparently a bit of a recluse, it is interesting to note that he spent 6 months in Calcutta (now Kolkata) in 1928 to discuss various aspects of quantum mechanics with Satyendra Nath Bose, after whom bosons are named. The name was given by Dirac himself, who also coined the name fermion for its opposite counterpart ā particles that followed Fermi-Dirac statistics. His modesty in not naming them after himself was apparent.
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My Grandfather taught Dirac Mathematics at school in Bristol. I only learnt this fact when my eldest son was talking to my father one day and he happened to mention it. My son now has a PhD in Physics investigating Neutrinos.
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We need more movies on life like these scientists. Just like they did it with Oppenheimer. The world needs to know these great people who ever lived on the same planet as us.
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I actually got a chance to meet Pierre Ramond. I bought a copy of this book on field theory, I did get it signed, and he spoke with the undergraduates, and told a few stories about direct. Some of this I was already familiar with. But it was a great video. this was after a major surgery where I had to learn how to walk again. So it was nice gift. I can see why Dirac and Ramond weāre good friends. Because even after meeting him for a couple hours, he was a very humble and kind man.
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I had initially planned to retire at 62, work part-time, and save money, but the impact of high prices on various goods and services has significantly disrupted my retirement plan. I'm worried about whether those who experienced the 2008 financial crisis had it easier than I currently am. The volatility of the stock market is a concern as my income has decreased, and I fear that I won't be able to contribute as much as before, potentially jeopardizing my retirement savings.
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Great video! Dirac stands immortal in the minds of many leaning towards science. Seeing him as an old man and experiencing his full journey is both sobering and insightful.
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Having studied Physical Chemistry in college I find these biographies of famous quantum mechanics heroes quite fascinating.
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I am no physicist but during the covid, I tried my best to understand how he derived his equation from the relativistic equation. Indeed a genius. Would never have thought in a million lifetime to use matrices.
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8.06 One of the greatest photos ever taken in the history of Science. It must be very exciting to live during that era as there are legendary physicists working hard to de-mystify the inner workings of the cosmos.
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Thank you, Cindy, for lifting up the life of Paul Dirac!
I met him quite briefly near the end of his life, and his manner was very sweet and modest. He said that he regarded his own contribution to theoretical physics to reflect his luck to live in the "golden age of quantum mechanics", where new discoveries were like "low-hanging fruit".
His theory, which was the first to synthesize quantum mechanics with special relativity, predicted the existence of an anti-particle simply as a particle propagating "backwards in time", as Richard Feynman characterized it.
However, there was the confounding presence of infinite energy or mass in the theory, which took two more decades of theoretical physics development to explain away, resulting in what we now refer to as quantum electrodynamics, considered a triumph of theoretical physics.
Dirac saw within his lifetime the maturation of his theory into the integration of the weak nuclear interaction with his own quantum electrodynamics to form a successful unified theory. He also witnessed its further development with gauge field theory, SU3, and the Standard Model. All before he passed away.
My fond notion is that he could permit himself to let go of the label of "failure" by the end of his life. He certainly impressed me as a happy person.
~~~~Arthur Ogawa
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8:25 What an amazing collection of geniuses, the most influential and productive Physicists of all time. And look who is in the front row dead center anchoring the whole group.
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Beautiful video! Thanks. Few seconds more about the equation would have been even better, but I understand the need to balance elements for a better story telling to such a wide audience. I Just subscribed, looking for more ā¤
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@Newsthink
1 month ago
What other biographies would you like to see? Try brilliant.org/Newsthink/ for FREE for 30 days, and get 20% off your annual premium subscription
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