Gravitational Fields and Electric Fields Part 2

ourben has asked the question, "Do like charges repel, or are they being attracted by unlike charges elsewhere?" There is a definite answer to this, but I take two parts to get there. This is the second part.

The answer is that we know like charges repel, and Faraday cages can be used to prove it. This video contains a description of how we can observe charges interacting (and masses interacting, although in practice I think that is more difficult to observer) and, in the case of charged particles, be sure that there is no interference from any other charged particles in the universe!

Category:

Howto & Style

Tags:

• Graviational
• Electric
• Fields

[fabbio8888]

A question: with respect to the final part, what if the ouside charge approaching the sphere has also a mass, and so the charges inside the hollow? Will they be affected and move by gravity? I suppose no Faraday cage for mass, isolating from gravitation. Ok? Thanks prof!

[DarwinsHamster]

No Faraday cage for mass, but there are some interesting features of a similar geometry for mass that I'll try to discuss in the future.

[Saskachewan]

Have you seen any charges without mass? :>

[DarwinsHamster]

It's been a long time since I've studied any of this. When I did, I don't believe there were any known particles that had charge but no mass.

[WarNoMore58]

So if I don't want my beer affected by the universe I should drink it out of a Faraday shield (aluminum can). I think I got it.

[DarwinsHamster]

By Jove, applied science! You, sir, are a natural engineer!

[fishcake1235]

This video, and your other one, was very helpful to me. Thank you very much for your time.

[TheReasonWhyGuy]

This video is greatly appreciated. :D

Thank you kind sir for posting it ^_^

[Saskachewan]

It's very important thing to notice :> Because science today seems to treat those things separately amd the whole point particle concept is a dead end. Do you know Milo Wolff's "Wave Structure of Matter" theory? See his homepage at quantummatter com if you like.

[grungehead1234567890]

Whoa, maybe I might of missed somthing in the video, but "living" inside of a hollow sphere (or holloe Earth) would cancel out the property of gravity? A Faraday cage for gravity, so to speak?

[Luke12000]

I humbly agree