[Tycho?]

Is it true that superconductors are always the same temperature throughout? I read this in a sci-fi book, but it seems a rather odd property.

Heh, yeah I just discovered that, good old wikipedia. At first I thought, well, it just says radius, it doesn't say radius of the event horizon. Of course then I realized that no other part of a black hole could really have a radius... Thanks.

I was wondering, how large are the event horizons of black holes? Not any sort of miniature black holes, but ones likely to form from the collapse of very massive stars. Also, is there any easy way to calculate it?

If the system was just the pot of water. I should clarify, I was talking about the water plus the hot thing, whatever it was.... ummm, I just read over his first post again, and I think I am confused on what it is he is actually asking. I retract my statement then.

Haha, I do a google search on the subject, and the first link I get is one to this very thread... ...and it does indeed seem that you are right there Martin. Neat.

Well Martin, it seems I owe you an apology. I can't say I really trust those java calculators when I use numbers that really mean nothing to me, but I'll take your word for it while I look it up more.

Yeah, it definately is, otherwise relativity would have been thrown out the window when one of its principal predictions was broken. Which it hasn't been.

Umm, potential energy might not be the best term for that, although im not sure what is. Lets put it this way, the total energy of the system would not change (assuming no water leaves the pot of course).

Um' date=' [i']what[/i]. I call bullshit on this one, this goes against everything I know on relativity. If you can prove me wrong, by all means do so.

That equation works anywhere, gravity has no part it in, just what you see. Uh, but I think you may be reffering to potential energy from your last sentance or two. If you are, gravitational potential energy is the potential energy something has on planet Earth for example. If an object is suspended in the air, it has potential energy because it can fall. This equation is E=mgd where E is energy in joules, m is mass, g is acceleration due to gravity and d is distance from the refference point. The refference point would usually be the surface of the Earth, so you could find how much energy something would gain by being dropped to the ground. At sealevel on earth, gravity is 9.8m/s. On other planets this would be different. Or you wern't talking about this at all, and it was a complete waste.

Yeah I thought so, thanks for clearing that up.

Are you sure about this? Why would matter be transformed into energy at c?

Your conclusions do not make sense.

Um, no, if it were made of gold I think we would have noticed it by now. Why heavier elements closer to the sun? And why gold in particular, why not lead or something?

Hmm, I've never thought of that before, good question.

I'm glad somebody said it, I've heard this argument before. Remember kids, its not that entropy always increases, its that net entropy always increases. So entropy can decrease, as long as it increases in another spot in the system to make up for it.

Neat, I've only been here about a month and already like 5 people have disproved relativity! Must be a pretty smart crowd here.

Oh, friction, right. Yeah Crash got it.

I think privatising NASA would be a bad idea. The more privatized it gets, the more money becomes an issue. Space exploration should not be an attempt for profit.

See them how? Like not detect them? You need to elaborate a bit here.

There was fairly large body discovered beyond Pluto a little while ago. I think it was like half the size of pluto or something, so you could call it the 10th planet if you want to, but considering Pluto is hard enough to consider a planet considering its tiny size. Whatever.

Wow, that is an incredible drop. Did someone just sit down and say "this sting stuff is bull shit"? If the theories were encountering problems, it would seem that it would drop off slightly at first, and then get more severe as more people abandoned/rethought it. But for such an incredible drop to occur after a period of sustained growth is bizzare. I would guess a very profound problem was found, one big enough to either confuse people enough to get them to stop writing papers, or just cause them to stop writing papers period. Most strange.