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  1. S

    Need help with xrd T_T

    You can do XPS to find the element percentage and state.
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    Does anything actually move?

    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...
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    Could Graphene Become the Next Silicon?

    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.
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    Unified theory of everything

    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...
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    Ruins of 7,000-year-old city found in Egypt oasis

    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.
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    Electrically non-conductive thermally conductive material

    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.
  7. S

    Smolin book impact in January

    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.
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    Can absolute zero ever be achieved?

    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.
  9. S

    Faster than light.

    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...
  10. S

    Is Dark Matter a solid, gas or liquid?

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

    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.
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    Collision of two Black holes

    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...
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    Budding SciFi Author with many questions

    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.
  14. S

    Can absolute zero ever be achieved?

    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...
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    An Exceptionally Technical Discussion of AESToE

    Ahh, thanks for clearing that up. I feel kind of dumb now :uhh: 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.
  16. S

    Temperature definition

    That's how ice is made :smile:
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    Concentration of synthesized nanoparticles

    Not 100% sure on this, but I beleive it involves measuring the dilectric relaxation time of hydrogen protons in an aqueous solution of your nanomaterial. To do this would require a magnetic resonance spectrometer. Once you have the relaxation time, the inverse of this is proportional to the...
  18. S

    Nanotube revolution?

    www.nanoindustries.com lists most (if not all) suppliers of CNTs, try to find something there.
  19. S

    An Exceptionally Technical Discussion of AESToE

    Just a couple things after being away from this discussion for a while, Could anyone tell me the roots for the tau neutrinos? This is what I got for the roots, which I don't think is the same as in garrett's pdf: [0 0 0 1 1 0 0 0] [0 0 1 0 1 0 0 0] [0 1 0 0 1 0 0 0] [1 0 0 0 1 0 0 0] Jan - I...
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    Faster than light.

    Theoretically, superluminal travel would require an extradimensional space if you're going to go with the SR belief that nothing can travel faster than light. Most of the current hypotheses in unification postulate a large number of dimensions. Then again, what happens when you hit the...
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    LHC question

    And even when we find that one unified theory, it will definitely pose many, many more questions than we already have. With every question answered, we find more and more things that we don't know about As for string theory: if we don't find the higgs, bosonic string theory will be up the...
  22. S

    Carbon at very low temperatures

    It's cool, sometimes the simplest stuff is the easiest to forget :redface:
  23. S

    Carbon at very low temperatures

    Yep, different forms of pure carbon also exhibit different properties of conductivity. Specifically, graphite is a good conductor, which becomes even better when made into different structures such as fullerines. Diamond is a good insulator unless mixxed in with some other element (such as blue...
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    An Exceptionally Simple Theory of Everything!

    It means we have a LOT left to do, every question answered raises lots of new questions. In many ways, there may be even more that we don't know about if E8 Theory is correct. Some other people on these forums may be able to enlighten you more on this subject than I could.
  25. S

    What major of Chemistry is dealing with toxic?

    I believe it's BioChem, but you'll want to talk to people in the field you want to go into to get their opinions first.
  26. S

    American drinking age,

    Well said Cyrus, I can't agree with you more.
  27. S

    New warp drive paper

    Congratulations robousy! Reading this paper will really be a treat (and due to the scarcity of good papers on this subject, I suspect I'll be re-reading it before long). I must have spent (wasted?) countless hours reading papers and just thinking about negative energy densities, exotic matter...
  28. S

    Example of a substance that is a Bronsted-Lowry, but not Arrhenius

    Lewis bases are defined as being able to donate a pair of electrons, ammonia also falls into this category... is that what you mean? NH3 is generally regarded as not an Arrhenius base since it autoionizes and is amphoteric: NH3 + NH3 ⇄ NH4+ + NH2-
  29. S

    Centrifuge question

    Magnetic centrifuge maybe? I'm sure someone's invented it. :biggrin:
  30. S

    Why do superconductors superconduct current?

    f95toli's book is definitely a mathematically challenging explanation and should be what you're looking for, I'll give it one more shot too, perhaps this may be of help: http://meso.phys.northwestern.edu/documents/quasiclassical.pdf"
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