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Electroboom: How Right IS Veritasium?! Don't Electrons Push Each Other??

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Naej:

--- Quote from: hamster_nz on July 12, 2022, 05:51:33 am ---
--- Quote from: electrodacus on July 12, 2022, 05:28:54 am ---
--- Quote from: hamster_nz on July 12, 2022, 05:24:24 am ---That's some pretty lazy flip-flopping between current and energy there, (again)...

--- End quote ---

What part you disagree with ?

a) electric energy is the electric power integrated over time.
b) electric power is the product of electric potential and electric current.
c) electric current is a stream of charged particles, such as electrons or ions, moving through an electrical conductor or space.

The c) is copy paste from wikipedia (first line in a google search).

--- End quote ---
You missed out your definition of electrical potential. I'll assume voltage.

You say energy flows in the wire, and I know voltage can be measured with a DMM or voltmeter.

How should I attach both probes to the wire to measure it? Everywhere I try I get a number number very close to zero, indicating zero powre!

--- End quote ---
Nah you need electric potential.
And you can get a good approximation of a potential difference with a voltmeter.
If you want to know the power you have to multiply by the current.  ;)

Alex Eisenhut:

--- Quote from: electrodacus on July 12, 2022, 06:10:28 am ---
--- Quote from: HuronKing on July 12, 2022, 06:05:02 am ---
Oh my God. Hahaha. What a blatant refusal to define 'voltage'.  :-DD :-DD

--- End quote ---

Do you understand that with zero current there is zero power and thus zero energy ?
Unless you disagree with one of those 3 points electrical energy doesn't travel outside the wires.

--- End quote ---

How do you explain different signal velocities for PCB traces outside and inside the PCB? How can the surrounding material have an effect if electrical energy is only inside the wire?

How does an electrical signal appear at a radio receiver's antenna?

How does electrical energy appear in a solar cell? That's DC from THz.

gnuarm:

--- Quote from: rfeecs on July 12, 2022, 05:07:16 am ---
--- Quote from: electrodacus on July 12, 2022, 04:56:24 am ---
The electrical energy either flows through wires or outside them.

--- End quote ---
Hard to argue with that.


--- Quote ---There is absolutely no evidence to suggest electrical energy travels outside the wires.

--- End quote ---
Wrong.

You are endlessly repeating yourself.

As am I, I guess.  >:(

--- End quote ---

The difference is, he is a troll and you are the victim.  Or maybe it's more accurate to say, you are part of his support network.  You provide him with sustenance.

He has done this for two threads now.  He debated his way across dozens of pages about the blackbird, faster than wind, sail car.  Now he has done the same thing about electrical current. 

His techniques are:


* Misapply formula
* Misuse an example
* Ignore clear, unambiguous arguments from others.
* Deny facts from other people
* Make up imaginary physics
* Divert from the truth
Did I miss any?  This guy should go into politics!

electrodacus:

--- Quote from: Naej on July 12, 2022, 08:47:25 am ---Nah I don't think you understand the size of the atmosphere.
So the equivalent problem is: given a capacitor with 1GF (gigafarad), charged at 20V how do you get 200W during 3 minutes, for example  200V-1A.
And of course you can use energy storage, much like Blackbird uses energy storage: moving parts (wheels, propeller, gear), moving car.

--- End quote ---

During those 2 or 3 minutes that Blackbird accelerated to 13m/s it required around 7Wh maybe with friction say round to 10Wh
The commercially available 2.7V 3000F capacitors hold about 3Wh so 4 of those in series will be 750F at 10.8V and contain when fully charged 12Wh sufficient to do exactly what Blackbird has done in that speed record test.
The main problem that you ignore is that there wind no wind power available to vehicle when direct downwind at speed equal or higher than wind.
During that period vehicle is accelerated by stored energy.
   

Alex Eisenhut:

--- Quote from: electrodacus on July 12, 2022, 05:39:13 pm ---
The main problem that you ignore is that there wind no wind power available to vehicle when direct downwind at speed equal or higher than wind.
During that period vehicle is accelerated by stored energy.
   

--- End quote ---

And what you are ignoring is the wind from the propeller pushing backwards.

Quick! What is 2 - (-2)?

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