General > General Technical Chat
"Veritasium" (YT) - "The Big Misconception About Electricity" ?
bdunham7:
--- Quote from: bsfeechannel on January 02, 2022, 12:12:20 am ---Clearly energy is coming from the solenoid and going to the magnet, which is being dissipated as heat.
--- End quote ---
Is it clear? How about if we replace the coil with a big fixed permanent magnet? Is energy flowing from the big magnet to the small one? :)
bsfeechannel:
--- Quote from: bdunham7 on January 02, 2022, 01:15:09 am ---
--- Quote from: bsfeechannel on January 02, 2022, 12:12:20 am ---Clearly energy is coming from the solenoid and going to the magnet, which is being dissipated as heat.
--- End quote ---
Is it clear? How about if we replace the coil with a big fixed permanent magnet? Is energy flowing from the big magnet to the small one? :)
--- End quote ---
Ooh! I forgot to include the doggone switch.
SiliconWizard:
--- Quote from: bdunham7 on January 01, 2022, 11:00:31 pm ---
--- Quote from: SiliconWizard on January 01, 2022, 10:51:24 pm ---I was specifically talking about the cases in which it "failed" so far. Do not generalize what I said, which would tend towards a strawman argument. =)
--- End quote ---
I don't intentionally do the strawman and although reductio ad absurdum often looks like that, I haven't intentionally done that here either. Perhaps there is a misunderstanding somewhere, so can you cite an example where standard QM/QED has 'failed'? Or a situation or 'context' where it is not valid?
--- End quote ---
It's only been observed for very small particles (notwithstanding the mentioned recent experiments, which are interesting, but for which I'm still prudent.) And as I said earlier, any theory that can't survive observation under certain conditions can't be claimed to be valid for those conditions. So, while many physicists believe that the same laws hold at any scale, the honest ones will tell you that they just don't know. That it appears plausible, but we have no proof. The others are believers.
SiliconWizard:
--- Quote from: bsfeechannel on January 02, 2022, 01:45:57 am ---
--- Quote from: bdunham7 on January 02, 2022, 01:15:09 am ---
--- Quote from: bsfeechannel on January 02, 2022, 12:12:20 am ---Clearly energy is coming from the solenoid and going to the magnet, which is being dissipated as heat.
--- End quote ---
Is it clear? How about if we replace the coil with a big fixed permanent magnet? Is energy flowing from the big magnet to the small one? :)
--- End quote ---
Ooh! I forgot to include the doggone switch.
--- End quote ---
Well... yeah. ;D
Because... in the two permanent magnets example, maybe the part that was neglected here was the initial energy required to place, and then hold the two magnets next to one another before any of them will move?
SilverSolder:
--- Quote from: bdunham7 on January 02, 2022, 01:15:09 am ---
--- Quote from: bsfeechannel on January 02, 2022, 12:12:20 am ---Clearly energy is coming from the solenoid and going to the magnet, which is being dissipated as heat.
--- End quote ---
Is it clear? How about if we replace the coil with a big fixed permanent magnet? Is energy flowing from the big magnet to the small one? :)
--- End quote ---
Arguably, you are storing potential energy while moving the magnets closer? - and when they are standing still... that energy is still there!
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