General > General Technical Chat
Veritasium "How Electricity Actually Works"
AndyBeez:
[As a board newbie] there is not much I can add to the original Veritasium debate other than voice my own opinion. Which is, all Veritasium did was to prove the concept of close coupled inductance and mutual capacitance (cross talk) by building the world's longest (hypothetical) dipole antenna /slash speaker cable. Nice thought experiment, but how does this prove the hypothesis in a universe owned by the EMC demons of EMF?
I ponder what would happen if, rather than being stretched out one light second apart, the cables are laid out serpentine fashion - like differential traces on a PCB? It's the same distance for the electron wave to propogate. So is the outcome the same if the round trip time is the same?
A not so hypothetical experiment is to stand under a high tension power line whilst holding a flourescent tube. Spooky stuff. Is this an example of "vampire capacitance?"
On this theme, [thanks to Dave's debunking videos :o ] I note there are free energy harvesting devices than can run entire hospitals from a single wifi signal. So maybe we don't know how electricity really travels? So then, why does MY electricy have to flow through a meter when, I can just run out a very long wire and close couple with the ether for free? :bullshit:
ERROR :palm:
electrodacus:
--- Quote from: AndyBeez on May 15, 2022, 09:02:49 pm ---
On this theme, [thanks to Dave's debunking videos :o ] I note there are free energy harvesting devices than can run entire hospitals from a single wifi signal. So maybe we don't know how electricity really travels? So then, why does MY electricy have to flow through a meter when, I can just run out a very long wire and close couple with the ether for free? :bullshit:
ERROR :palm:
--- End quote ---
When I was a young child in the late 80's I used to listen to a radio that was made only out of a speeked (the high impedance one from an old rotary dial phone) and a diode in parallel with that.
One end will be connected to any large metallic object that was not grounded like the water gutters on the house acting as the receive antenna and the other end connected to my body (a finger was enough) with me basically being capacitively connected to ground that was the return path.
This way I was able to listen to the closest AM (amplitude modulated) radio station with no batteries using energy from the radio station antenna.
The two antennas are just the plates of a capacitor and the ground is the return path for the loop.
There were stories that people leaving very close to AM transmit antenna will steal energy by capacitively coupling to the radio station antenna.
A bit later I build a similar radio but with an inductor and variable capacitor in order to be able to tune any of the close by AM stations and also then I powered a red LED in a similar way.
But this will not be correctly named wireless energy transfer as I was in a closed loop in series with a capacitor that was charged and discharged at AM frequency of the radio station.
bsfeechannel:
--- Quote from: Naej on May 15, 2022, 07:06:52 pm ---A good thing Derek is there to stop it. Youtubers shall prevail over mainstream scientists!
--- End quote ---
Unless he's colluded with them.
bsfeechannel:
--- Quote from: AndyBeez on May 15, 2022, 09:02:49 pm ---[As a board newbie] there is not much I can add to the original Veritasium debate other than voice my own opinion. Which is, all Veritasium did was to prove the concept of close coupled inductance and mutual capacitance (cross talk) by building the world's longest (hypothetical) dipole antenna /slash speaker cable. Nice thought experiment, but how does this prove the hypothesis in a universe owned by the EMC demons of EMF?
--- End quote ---
Inductance, capacitance and "antennance" are just aspects of the same phenomenon.
PlainName:
--- Quote ---It is a distributed capacitance and there is inductance involved so charging of each capacitor (seens a series of lumped components) will be delayed.
--- End quote ---
Doesn't matter if it's distributed - the entire thing has a very very short time constant. All you're saying is that if you imagine it comprised 100 smaller capacitors, each will be 2.1ff (i.e. 2.1pf/100).
And... if there's a 18V pulse going in, how come there's only 5V coming out the other side?
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