Threads by latest replies - Page 542

(12 replies)
No.14281084 ViewReplyOriginalReport
how do the electrons get back to the electron emitter?

i can understand that you energize a material and it ejects electrons. okay fair enough.
but the electrons get shot out of this thing and fuck off somewhere else. you could shoot the electron beam at a wall or whatever.
where do those electrons go? how do they disappear?

there's a limited number of electrons on atoms of the electron emitter, you have to resupply the electrons eventually. where do those electrons come from?

i know that electricity from the wall is the result of flow of electrons in the wire, but it's not like you can "suck electrons" out of the wire, right? the work done by AC power is just from the electrons moving down the wire, and back up the wire, rapidly, inducing EMF in whatever the thing is that you want to power.

it's not like you could stick a wire in the wall and collect a "bucket of electrons" from it.

so how do the electrons get back on the electron emitter?
7 posts omitted
(5 replies)
No.14284217 ViewReplyOriginalReport
Looking at the sun does not cause eye damage
I look at the sunset all the time
the sun isn't even that bright during an eclipse
(5 replies)
No.14284253 ViewReplyOriginalReport
How long do I have to take antipsychotics after the voices stop?
(5 replies)

I FUCKING LOVE SCIENCE THREAD

No.14284248 ViewReplyOriginalReport
What do you FUCKING LOVE about SCIENCE, /sci/?
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(5 replies)
No.14284164 ViewReplyOriginalReport
Where are my household humanoid assistant robots?
Are they going the way of flying cars?
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(5 replies)

ATMOSPHERIC ENERGY COLLECTION

No.14283788 ViewReplyOriginalReport
let's come up with a design for an atmotelluric generator that passively produces useful work through the electric potential difference between the sky and ground

>one probe high in the air
>another buried into the ground
>motor between them working off of the potential difference
basically an electric windmill

DC motor with electrets to make use of high volts low amps
atmospheric and telluric probes with fractal design to reduce electrical resistance between the probes and their environment


https://www.feynmanlectures.caltech.edu/II_09.html

https://www.youtube.com/watch?v=qhXxSAv6rMg

https://en.wikipedia.org/wiki/Electret
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(5 replies)
No.14284140 ViewReplyOriginalReport
What's the scientific reason why some things are funny and some things aren't?