When the field builds up around a cable? What field are you referring to? What would produce the field if not moving electrons?
Electrons do not orbit.
Electrons do not spin.
We know not where they're going.
We know not where they’ve been.
"Curiouser and curiouser!" cried Alice.
One would almost have thought that TNT was being serious. 😉
I'm sure one of those 'T's stands for 'Troublemaker'! 😊
I'm sure one of those 'T's stands for 'Troublemaker'! 😊
Dark Side of the Moon: A Piece for Assorted Lunatics, as it was originally known (according to Wikipedia).
Could I, politely as ever, issue a Stern Warning to my fellow Forum Members?
This is a purely Scientific Thread. It's nominally about Gravity.
Any wanderings are viewed with distaste by Yours Truly.
For sure we are coming up to the Full Moon near Jupiter, on which "The Lunatics are on the Grass". As the Pink Floyd mentioned in a slightly Lower Sixth school way.
Anyway, I sat through "Oppenheimer" last night. I learned absolutely zip new about Physics, being familiar with Uranium 235 and Plutonium 239, as all Physicists are, but enjoyed seeing Richard Feynman doing a cameo playing Bongos (and very badly, IMO).
Oppenheimer singularly brought Quantum Mechanics to the USA, along with considerable insight into Black Holes, but really was more of a System Engineer like myself. It's all about the Big Picture, not the Detail.
I was sat next to a pleasant female Algebraic Mathematics teacher who was making the best of it. She was telling me (having noticed I was carrying my Turing book, lest the film got boring) that Bletchley Park Museum is the best experience she ever has had... EVER! And I certainly shall go there next time I go near Milton Keynes based on her recommendation. About £25 for a year ticket.
I mentioned to her that all good Physicists and Mathematicians are as Autistic as Heck. "Quite right," she said, "I like the way Science includes Neurodivergence".
At this point I wondered where this was going. I know the difference between "Different" and "Barking Mad".
And now, back to the movie:
Einstein (Played by actor Tom Conti, who I didn't recognise initially) came over as a sad and beaten character, but was later fleshed out as a very Wise man.
The Best architectural scenes in the film were of Princeton and Gottingen.
Best performances. Florence Pugh was fearless. Emily Blunt vulnerable but angry, I really liked Kenneth Branagh as Neils Bohr who had genuine warmth and integrity.
Of course I hated the Villains. The wicked spies Fuchs and Chevalier, who were unfortunately associated with the British, and the Machiavellian Politician Strauss. But I really would have preferred less intrigue and more Science.
Anyway, £6 well spent. I got a discount from the usual £7 from the lovely manager Ayse. I must have Charm. I spent the bonus on a Magnum Chocolate Ice-Cream. 😎
This is a purely Scientific Thread. It's nominally about Gravity.
Any wanderings are viewed with distaste by Yours Truly.
For sure we are coming up to the Full Moon near Jupiter, on which "The Lunatics are on the Grass". As the Pink Floyd mentioned in a slightly Lower Sixth school way.
Anyway, I sat through "Oppenheimer" last night. I learned absolutely zip new about Physics, being familiar with Uranium 235 and Plutonium 239, as all Physicists are, but enjoyed seeing Richard Feynman doing a cameo playing Bongos (and very badly, IMO).
Oppenheimer singularly brought Quantum Mechanics to the USA, along with considerable insight into Black Holes, but really was more of a System Engineer like myself. It's all about the Big Picture, not the Detail.
I was sat next to a pleasant female Algebraic Mathematics teacher who was making the best of it. She was telling me (having noticed I was carrying my Turing book, lest the film got boring) that Bletchley Park Museum is the best experience she ever has had... EVER! And I certainly shall go there next time I go near Milton Keynes based on her recommendation. About £25 for a year ticket.
I mentioned to her that all good Physicists and Mathematicians are as Autistic as Heck. "Quite right," she said, "I like the way Science includes Neurodivergence".
At this point I wondered where this was going. I know the difference between "Different" and "Barking Mad".
And now, back to the movie:
Einstein (Played by actor Tom Conti, who I didn't recognise initially) came over as a sad and beaten character, but was later fleshed out as a very Wise man.
The Best architectural scenes in the film were of Princeton and Gottingen.
Best performances. Florence Pugh was fearless. Emily Blunt vulnerable but angry, I really liked Kenneth Branagh as Neils Bohr who had genuine warmth and integrity.
Of course I hated the Villains. The wicked spies Fuchs and Chevalier, who were unfortunately associated with the British, and the Machiavellian Politician Strauss. But I really would have preferred less intrigue and more Science.
Anyway, £6 well spent. I got a discount from the usual £7 from the lovely manager Ayse. I must have Charm. I spent the bonus on a Magnum Chocolate Ice-Cream. 😎
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Looking at the trailer image above, a Hot Chocolate Bomb would seem an appropriate accompaniment to the film!
I'm disappointed the older (before 2000 or so) PBS NOVA episodes aren't available. There were TWO exclusively on Feynman, one before and one just after his death, IIRC. He talked about being on the Manhattan Project, and told how he cracked safes there. Oh yeah, I think it mentioned quantum mechanics as well. "I was at a park camping, and this man came up to me and said 'excuse me sir, but why do you have Feynman diagrams on the side of your van?' 'Well, sir, I'm Richard Feynman.'" If only there were video of the expression on the man's face ...
Some of those on DVD may be on the shelf in your local library for check out.
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You know the rights to a lot of that stuff was bought up, sometimes by people with a decidedly unscientific agenda; then they bury it.
I know that one of the popular old science channels ("Discovery Channel" I think) was bought by a large religious lobby, and it went from great programs to idiotic content about aliens and such nonsense.
I found this episode on Feynman on the Wikipedia Nova episode list:
https://archive.org/details/TheLastJourneyofaGenius
https://archive.org/details/TheLastJourneyofaGenius
I'm watching the second video right now benb, and have just reached the part that mentions the Feynman diagrams painted on the Dodge van.
The video is well worth watching. I have even delayed watching the first of the new episodes of Doctor Who to watch it!
The video is well worth watching. I have even delayed watching the first of the new episodes of Doctor Who to watch it!