Recent content by Xavius

That's a really cool PDF, thanks.

Thanks for the insightful answers Bill, I think I have a general understanding of what happens in this scenario and I copied the calculations down. I'm definitely ignorant in many basic areas. I started a calculus course ~2 months ago that covers everything up to vector calculus so hopefully...

Sorry, that was bad vocabulary, I do understand that fields are infinite. I was thinking of a limit of measurement, say the point where measured field magnitude dropped below some arbitrary amount.

I think I answered my own question by looking at Q-reeus' link. "The field is "pancaked" -- it's stronger out to the sides, and weaker in front and in back of the charge. If we view the field as a "bubble" around the charge, we can view the "bubble" as being Lorentz contracted. However...

Ok, so for an EM field, Ex → Ex, Ey → γEy says that the field in the y-axis is increased by a factor of γ. Does the field expand in radius or is it just the field strength that increases? Or do both happen?

I don't think I asked either one of those :) Length contraction can't be denied, whether you observe Lorentz contraction or don't just depends on what frame you're in. My basic question is, does a field whether it be EM or gravitational compress along with the object generating it? Bill gave...

Heck yeah, show me the math! :) I'd like to see at what speed it would become spherical.

Honestly, I don't know how or if an EM field would change in those circumstances. I need to break it down even simpler :) If the rod was a giant bar magnet and you compressed it in some way so that it went from 300m in length to 1m in length and retained the same 1m diameter, and you had a...

Hrmm, I would think that in the rod's frame of reference, the E field would be roughly rod shaped also?

Here's a scenario: A rod shaped object 1m in diameter and 300m in length is moving through space at a velocity of .999994444429013c (picked that velocity arbitrarily for the 300:1 length contraction). The Lorentz factor is 300 for this problem. So the equation to figure length contraction is...

And interestingly enough, I'm getting that according to Hawking's research, black holes should radiate like a black body which would mean isotropically. I guess that says that Hawking radiation would be emitted at 90° in all directions? It would originate at a point at center mass of the black...

I had figured that to have something even approximating a stable photon orbit would only be probable around a large black hole with a large event horizon. The slightest variance in "entry angle" would be magnified each orbit. So with a small event horizon say 10km in radius, the photon would...

Is Hawking radiation emitted in a range of vectors? What I mean is, does Hawking radiation always radiate out at 90° from the boundary of the event horizon? If that's the case, it seems like Hawking radiation would escape the black hole and even the photon shell by virtue of it's vector. The...

Yeah, very cool stuff. It seems odd to me that the location of the photon shell is 3/2 R. Intuitively, I would have guessed that it would orbit at the very limit of the event horizon. It doesn't mention this in the article, when it says "not stable", does that mean that photons in the photon...

Ok, that answers my question, I wasn't able to figure whether it would be stable or not. Thanks!