Recent content by staf9

You can do XPS to find the element percentage and state.

Yes, when you move your arm, you actually move it, the particles in your arm are not replaced. Things really do move. I'd really like to know who told you that too, if you can remember. Maybe you confused it with this - 'things never touch, the magnetic fields on the atomic level repel each...

Nano-ribbons and nanotubes (both graphite) have both been used as diodes, you can make nano-radios with them. It definitely looks like they have some application in the future of computing.

I don't believe that this is the first thread that implied that a theory of everything would mean the end of physics, which is very wrong... I think it would be best to assume that there is no end, or of there is we're very far from it; as long as humans are around there will be something new to...

The Indus River Valley civilization is another interesting one. Search Harappa on google for more information, there's a bunch of research going into these historical sites, fascinating stuff.

BACT DLC Diamond coating? May be what you're looking for. I think a Boron Nitride powder may have a thermal conductivity a bit too low for what's you're looking for. Check out www.bactusa.com. Check out Boron Nitride powders still, though, may be of some use.

I'm going to go with 2.0, though I was leaning towards 1.5. I like Smolin's content more than any other authors when it comes to the subject of physics, he has a good writing style too, but not as good as Greene, though I don't always like the content of Greene's books.

Nope, energy from the outside system would cause the center to have energy, albeit a very small amount. Absolute zero is only possible if we have either a perfect insulator, or all atomic motion in the universe stops, both of which I don't see happening any time soon.

Wormholes aren't really faster than light travel because it's more of taking a "shortcut" through spacetime instead of speeding yourself up. So it's theoretically possible to get from point A to point B in space faster than light can, but you never actually move faster than light you only choose...

It's not something I'm well versed on at all, but couldn't dark matter be manipulated into any state of matter?

Might have just been moving 80kps with respect to the center of the galaxy. I don't see why it isn't possible for an extragalactic meteor to hit us, with tons of debris floating around up there. Pretty cool stuff imo.

There's quite a few, centers of certain galaxies included. I'm sure this phenomenon that you talk about originally has happened at some point in the history of our universe, given the sheer number of stars that we know of that have died and black holes that we know of (not to mention the...

It does seem like anti-gravity stuff is impossible from our current point of view, but with all of the work being put into theoretical physics, unification, QG, etc, I wouldn't completely write it off.

Therefore it's impossible to reach absolute zero until all atomic motion in the system (universe) has been stopped. As has been said before, perfect insulators don't exist. If one atom isn't moving and there's an atom that is moving near it, the one that isn't moving will steal some of the...

Ahh, thanks for clearing that up. I feel kind of dumb now :rolleyes: Chang and Soo's paper could be adapted for w-R in addition to w-L, right? It details two-component spinors in the paper.