NOVA scienceNOW | Amazing Atoms

NOVA scienceNOW | Amazing Atoms | PBS

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Envoyée le vendredi 13 juin 2008 11:00:59
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http://www.pbs.org/nova/sciencenow Throw away your textbooks. Here is the latest, atomically correct, version of our old friend, the atom. Don't miss the new season of NOVA scienceNOW, airing every Wednesday starting June 25 on PBS.

Watch past episodes of the program, try out interactives, and more on our Web site: http://www.pbs.org/nova/sciencenow

NOVA is produced by WGBH in Boston. Funding for NOVA scienceNOW is provided by Pfizer, the National Science Foundation, the Howard Hughes Medical Institute, the Alfred P. Sloan Foundation, the Corporation for Public Broadcasting, and public television viewers.

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0zombbii0

reality about atoms /my_videos_annotate?v=WOjGk19adS0
mercredi 25 avril 2012 17:30:08
cipihevent

what you said make less sense that QM, you can't ignore a comment that doesn't exist
lundi 23 avril 2012 17:27:20
Milesco

...or DOES it?
lundi 16 avril 2012 01:00:26
StellerNova

"they" just taught you what they were taught.
mercredi 30 novembre 2011 23:03:01
mphello

So the factually correct model of the atom has homeless guys peeing on the electron orbitals?
mercredi 09 février 2011 13:54:32
TheGodlessGuitarist

"it is entirely possible that there are an infinite amount of other universes with different states ..." Well I din't discriminate. 'Universe' means everything, and there can only one of those lol I think this concept of alternate expansions suffers from the same problem of choice. It also takes us away from the concept of a theory of everything, and to quote Lawrence Krauss, to "a theory of anything". Which is philsophically disturbing lol
lundi 16 août 2010 16:54:37
Jim1905

That's assuming when we time travel we stay in the same universe, it is entirely possible that there are an infinite amount of other universes with different states at any one moment in time that can be traversed to. Travelling backwards in time may be no different then travelling forwards. GR has more to say about this then QM does
lundi 16 août 2010 16:44:45
TheGodlessGuitarist

"QM is a shut-up and calculate kind of theory" Well, things are explained in terms of more fundamental things. Whatever theory is at the frontier of understanding is inherently a shut-up and calculate theory. Relativity is no better visualized than QM to me understanding. The stretchy nets of classic relativity explanations seem to me to be no more enlightening than probability clouds in QM.
lundi 16 août 2010 16:01:28
Jim1905

Yeah that's true; well SR has been successfully coupled with QM but GR hasn't. In any rate the problems loosely stated is we cannot handle a discrete GR or a background-independent quantum theory. However, which is is the more fundamental theory has yet to be decided. "Do we have choice or do we push everything back to an earlier state for time travel?" I'm not sure I understand what you are asking.
lundi 16 août 2010 14:59:51
TheGodlessGuitarist

"We can calculate things but that doesn't mean ..." I'm not sure there is any difference. If you have a mathematical model that accurately predicts, then that may well be the 'understanding'. Anyway my point was that GR/SR does not address the behaviours of the small and QM does not address the large, which is why there is no unifiying model. This is somewhat drifting off point. Do we have choice or do we push everything back to an earlier state for time travel?
lundi 16 août 2010 14:38:02
TheGodlessGuitarist

I suppose I ought to read his papers at some point lol
lundi 16 août 2010 13:12:40
Jim1905

Also, I know of no observations that don't fit relativity. I assume you're talking about GR, as SR is just (as the name implies) a special case.
lundi 16 août 2010 11:39:01
TheGodlessGuitarist

"QM is really just a set of mathematical rules where you have no standard interpretation." Well, like all scientific theories it take time to arrive at consensus, but regardless of the equations, there are observations that do not fit relativity, which is why QM theory came about in the first place.
jeudi 12 août 2010 16:18:09

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