| General > General Technical Chat |
| Veritasium "How Electricity Actually Works" |
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| electrodacus:
--- Quote from: T3sl4co1l on May 08, 2022, 06:59:53 pm --- Pray tell, how much force is required to "change the size of the plates"? Also, what meaning does "change size" have? Surely you aren't changing just one, that accomplishes [almost] nothing. But I would be inclined to understand this as "separation of plates", which is perfectly meaningful, a standard experiment. And indeed, if there is a force, and changing the separation of the plates implies a change in distance... then does that not also imply.......? ;) --- End quote --- No energy is needed if there is no friction. Variable capacitors are build this way but they do not care about friction. In any case energy from the capacitor will always be lost as heat due to plate resistance when you move the plates in any direction. That force * speed * time is energy and it will have nothing to do with electrical energy stored in a capacitor. There is an attraction force between the two plates of the capacitor so it takes energy to move the plates apart but that will not translate in any increase in electrical energy stored in the capacitor. |
| electrodacus:
--- Quote from: T3sl4co1l on May 08, 2022, 06:59:53 pm --- --- Quote ---I guess those two are professors at MIT and same as the other professor at University of California Alex have a poor understanding of energy storage. --- End quote --- :-DD Tim --- End quote --- I will need to correct this as it is unfair since I have no read the book written by them. In case of Alex I have seen his inability to understand energy by being unable to explain how that vehicle works and win the bet with Derek. |
| T3sl4co1l:
TIL this machine doesn't exist! :-DD |
| electrodacus:
--- Quote from: T3sl4co1l on May 08, 2022, 07:29:58 pm ---TIL this machine doesn't exist! :-DD --- End quote --- That is not what you think. It is an electrostatic energy generator. There are also piezoelectric capacitors that can convert mechanical energy to electrical energy. |
| PlainName:
--- Quote from: electrodacus on May 08, 2022, 07:25:14 pm --- --- Quote from: T3sl4co1l on May 08, 2022, 06:59:53 pm --- --- Quote ---I guess those two are professors at MIT and same as the other professor at University of California Alex have a poor understanding of energy storage. --- End quote --- :-DD Tim --- End quote --- I will need to correct this as it is unfair since I have no read the book written by them. In case of Alex I have seen his inability to understand energy by being unable to explain how that vehicle works and win the bet with Derek. --- End quote --- As you asked someone else a few messages back, "I need to ask what is your qualification." Seems that literally everyone is wrong except for you, so what is your qualification for having the definitive knowledge about energy? |
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