General > General Technical Chat
"Veritasium" (YT) - "The Big Misconception About Electricity" ?
aetherist:
--- Quote from: TimFox on March 10, 2022, 06:02:08 pm ---Entering the 20th Century, there were several unexplained but demonstrated phenomena, including:
1. The "ultraviolet catastrophe" (q.v.) for black-body radiation, which motivated Planck's introduction of his famous constant.
2. The photoelectric effect. As mentioned above, not explained by Maxwell, but discussed by Einstein applying Planck's result.
3. The precession of Mercury's orbit. Once again, Einstein applied himself to this question.
4. The Michelson-Morley experiment, which some here have scoffed at.
5. Atomic structure. Classical statistical mechanics treated molecules as solid objects, but spectroscopy showed that there was structure. Bohr's early atomic model, using early quantum physics, was consistent with observed spectroscopy.
6. Radioactivity and x rays.
etc.
Note that the Maxwell equations survived this tumult, since they turned out to be consistent with Special Relativity.
A good summary of the fin de siècle history: https://arxiv.org/ftp/arxiv/papers/1207/1207.2016.pdf .
However, physics has progressed in the last 120 years, as later scientists built upon the early work, and some results were modified (especially in the field of quantum mechanics, which replaced the earlier quantum theories). The validity of scientific theory is not based on its history, but experimental verification.
--- End quote ---
STR is krapp -- & GTR is mostly krapp.
We are presently in the Einsteinian Dark Age of science -- but the times they are a-changin'.
The aether will return -- it never left.
Einstein's field equations can't even give Mercury a stable orbit, as shown by modern computer analysis.
Panurge (from Greek: πανοῦργος / panoûrgos meaning "knave, rogue") is one of the principal characters in Gargantua and Pantagruel, a series of five novels by François Rabelais. Especially important in the third and fourth books, he is an exceedingly crafty knave, libertine, and coward.[1]
In Chapter 9 of the first book, he shows that he can speak many languages (German, Italian, Scottish, Dutch, Spanish, Danish, Hebrew, Greek, Latin and French), including some of the first examples of a constructed language.
In French, reference to Panurge occurs in the phrase mouton de Panurge [fr], which describes an individual who will blindly follow others regardless of the consequences. This, after a story in which Panurge buys a sheep from the merchant Dindenault and then, as a revenge for being overcharged, throws the sheep into the sea. The rest of the sheep in the herd follow the first over the side of the boat, in spite of the best efforts of the shepherd.
Suddenly, I do not know how, it happened, I did not have time to think, Panurge, without another word, threw his sheep, crying and bleating, into the sea. All the other sheep, crying and bleating in the same intonation, started to throw themselves in the sea after it, all in a line. The herd was such that once one jumped, so jumped its companions. It was not possible to stop them, as you know, with sheep, it's natural to always follow the first one, wherever it may go.
— Francois Rabelais, Quart Livre, chapter VIII
TimFox:
So you say.
My reply dealt only with the history that led up to this work, but you insist that everything that you find icky is (mis-spelled) crap.
aetherist:
--- Quote from: TimFox on March 10, 2022, 09:56:10 pm ---So you say.
My reply dealt only with the history that led up to this work, but you insist that everything that you find icky is (mis-spelled) crap.
--- End quote ---
Yes i see what u mean. Sorry.
Alex Eisenhut:
I think the main question is: how can I use your theory to reduce my electric (or is that electic) bill?
bsfeechannel:
--- Quote from: adx on March 10, 2022, 03:09:02 pm ---Generally agree, except the bit I put in italics. I have seen that argument pop up a few of times in the thread - that in essence electrical engineering and especially its advanced results (like iPhones) exist because of physics and academia. AFAIK the physics has usually lagged behind the industrial R&D, except in the early days when there was no commercial application, and a few notable examples (like radio, bad exapmle the iPhone then). Providing enormous support - but playing catch-up to empirical discoveries or very incomplete theories.
My point there is if humanity were somehow limited in its ability to produce high-level physicists and mathematicians (which isn't too much of a stretch if one considers how unlikely that seems in the first place), then we'd still have self-aligning gate CMOS, it just wouldn't be 2nm. There is really little standing in the way of that Apple M1 Ultra MCM, given enough 'tinkering' - it's practically how the semiconductor industry advances anyway. Radio would have been discovered by now. I can get by without Maxwell's equations, and although I'd make a pretty poor RF designer, I still know what I'm doing enough to make things work well enough.
--- End quote ---
You gotta be kidding me. Do you think that the engineers who are proud of not knowing their butts from a hole in the ground when it comes to Maxwell's equations and other basic concepts in classical physics would be capable of figuring out how nuclear magnetic resonance works and developing MRI scanning techniques?
Engineers had four decades to come up with the transistor after the invention of the triode, yet it was up to three physicists to understand how to control the current through a semiconductor slab by an external electric field.
How about the blue LED? It all started with physicists. And it was physicists who made it possible to produce high power blue LEDs.
All of those recent breakthroughs changed our lives forever. The idea that physics stopped being relevant in the early 20th century is a misconception, as very well pointed out by Huronking.
By the way, the physicists mentioned above were all recipients of a Nobel Prize.
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