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#1 |
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Banned
Join Date: Sep 2010
Location: Here
Posts: 2,279
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Buckyball; is the phonon a 'photon'?
In this attached link they are trying to share that within a C-60 (buckyball), they can calculate the phonon energy vibrations and even considering the implications of another structure to be place within the BB at variatant energy states.
The term to identify that 'vibration' is the phonon; is that phonon a photon? Heat? Abstract In a bucky ball, the atoms are all interconnected with each other through sp 2 bonding, thus resulting in exceptional strength. Apart from its hardness, the important fact is that for nanotechnology, useful dopant atoms can be placed inside the hollow fullerene ball. In order to utilize such properties and the strength of this molecule, it is of interest to study its stability under internal and external pressure. Therefore, in this paper, we made an attempt to study the stability of this molecule based on its binding strength. We have used the Tersoff [1,2] as well as Brenner potential [3] for the intramolecular interactions between the carbon atoms of a bucky ball and compared the two. Fulltext Preview http://www.springerlink.com/content/v648j0q578648678/ |
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#2 |
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Graduate Poster
Join Date: Mar 2008
Location: Back home
Posts: 1,966
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no
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"ut biberent, quando esse nollent " (if they will not eat, then they will drink) -- Publius Claudius Pulcher "In this universe, effect follows cause. I've complained about it but ... " -- House |
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#3 |
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Penultimate Amazing
Join Date: Mar 2003
Location: Central Illinois
Posts: 34,681
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PhononWP
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__________________
Hell, dynamiting fish in a barrel is more challenging. - Ladewig I suspect you are a sandwich, metaphorically speaking. -Donn And a shot rang out. Now Space is doing time... -Ben Burch You built the toilet - don't complain when people crap in it. _Kid Eager |
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#4 |
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New York Skeptic
Join Date: Aug 2001
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#5 |
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Banned
Join Date: Sep 2010
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Thanks as i was not sure when it appears wiki is suggesting the phonon is based on an occilation (a frequency): "In physics, a phonon is a quasiparticle characterized by the quantization of the modes of lattice vibrations of periodic, elastic crystal structures of solids. The study of phonons is an important part of solid state physics because phonons play a major role in many of the physical properties of solids, including a material's thermal and electrical conductivities. A phonon is a quantum mechanical description of a special type of vibrational motion, known as normal modes in classical mechanics, in which a lattice uniformly oscillates at the same frequency. " maybe it is a gravity, or weak force, maybe the strong force just hummming away..... i better go read the math before just the abstract. Thanks you as your post was so helpful |
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#6 |
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Cythraul Enfys
Join Date: May 2006
Posts: 28,881
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sp2 bonding, if this helps, appears to refer to the fact that carbon bonds via it's 2S (two of them in the 2nd S shell/energy level) and its 2P (two of them also - in the 2P shell/energy level) electrons. Which lets carbon make bonds with one to 4 other things (and the other things can be Carbon). No idea what that has to do with phonons - which is/are above my pay grade!!
For what that means graphically, I strongly suggest hunting up: David's Whizzy Periodic Table (the 40 element version is much neater than the full PT version but both are out there). The Chem Collective PT is pretty neat also - it shows Hund's rule. |
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There is no problem so great that it cannot be fixed by small explosives carefully placed. Wash this space! We fight for the Lady Babylon!!! |
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#7 |
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Penultimate Amazing
Join Date: Mar 2004
Location: Wits' End
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#8 |
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Illuminator
Join Date: Oct 2007
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Our remedies oft in ourselves do lie, which we ascribe to heaven. --Shakespeare |
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#9 |
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The Jester
Join Date: Nov 2006
Location: The wet coast.
Posts: 8,694
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No- sp2 bonding means that the single 2s orbital on carbon is hybridized or mixed with two of the 2p orbitals, allowing for single bonds to three neighboring atoms. There is one 2p orbital left over, and this overlaps with the 2p orbitals on the neighboring atoms to allow additional pi bonding.
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As the size of an explosion increases, the number of social situations it is incapable of resolving approaches zero. -Vaarsuvius It's a rum state of affairs when you feel like punching a jar of mayonnaise in the face. -Charlie Brooker |
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#10 |
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Muse
Join Date: Dec 2008
Location: Hard Corvallis, Oregon
Posts: 667
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DUDE, my guitar strings are photons, but that's because I'm awesome.
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#11 |
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Intellectual Gladiator
Join Date: Jan 2006
Location: In the midst of a vast, beautiful & uncaring universe
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Phonons don't have anything to do with gravity or the strong & weak nuclear forces.
Phonons are quanta of acoustical vibrations in solids. The quantum of the strong force is gluons, the quanta of the weak force are W & Z bosons, and the (hypothetical) quantum of gravity is the graviton. |
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#12 |
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Graduate Poster
Join Date: Jul 2009
Location: Right outside Raleigh, NC
Posts: 1,036
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No +1
I'm begining to think Bishadi's post are some type of perfomance art. |
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#13 |
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Banned
Join Date: Sep 2010
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#14 |
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Nitpicking dilettante
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__________________
The whole problem with the world is that fools and fanatics are always so certain of themselves, and wiser people so full of doubts.Bertrand Russell Zooterkin is correct Darat Nerd! Hokulele Join the JREF Folders ! Team 13232 |
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#15 |
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Graduate Poster
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#16 |
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Banned
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what is the spectrum for all the other forces of nature? (strong, weak, em, gravity) answer that and you have an argument, otherwise if energy is bound to fc (frequency*speed of light), then all of everything to include the word energy is of em or you just dont know any better |
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#17 |
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Graduate Poster
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#18 |
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Penultimate Amazing
Join Date: Mar 2004
Location: Wits' End
Posts: 21,647
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They don't have one.
Quote:
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#19 |
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Banned
Join Date: Sep 2010
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it is the MEAURED range to the em group (light)
you said utter tings have a resonance, as i pose all have a foundation with em (even heat itself is based on em) heck per the bohr analogy every electron that jumps to a higher shell must have 'a photon' to cause it. Look up the quantum jump. So causally speaking, unless you can share what the 'scale' (spectrum) is for the other forces of nature (gravity, weak, strong) then to drill down any phenomenon, that root cause will be?????
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basic
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i am glad i could enable a giggle. (ie.. with words i affected your mass (did you need evidence of entanglement? how about a taste of reality? words entangle mass)) and all spooky at that! |
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#20 |
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Banned
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#21 |
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Graduate Poster
Join Date: Aug 2007
Posts: 1,908
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EM frequencies are one thing that can be described as a spectrum, not the only thing.
Quote:
Quote:
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#22 |
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Penultimate Amazing
Join Date: Mar 2008
Location: New Zealand
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__________________
Real Science: NASA Finds Direct Proof of Dark Matter (another observation) (and Abell 520) "Our Undiscovered Universe" by Terence Witt: Review 1; Review 2 |
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#23 |
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Banned
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but all that exists is based on the per se 4 forces of nature.
So which is which? ie.... all that exists is bound to reality as the explanations are not the laws, the laws just offer a method of describing.
Quote:
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i see mercury progressing because it is being affected by the suns magnetosphere. (look up that orbit and find it is not following the laws) |
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#24 |
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Banned
Join Date: Sep 2010
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why didnt you post up clips to share why the thread has the inquiry of whether a phonon is a photon?
A phonon is a quantum mechanical description of a special type of vibrational motion, known as normal modes in classical mechanics, in which a lattice uniformly oscillates at the same frequency. These normal modes are important because any arbitrary lattice vibration can be considered as a superposition of these elementary vibrations (cf. Fourier analysis). While normal modes are wave-like phenomena in classical mechanics, they have particle-like properties in the wave–particle duality description of quantum mechanics. ie.... which force of nature is causing it? |
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#25 |
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Slide Rulez 4 Life
Join Date: Oct 2007
Location: Launching the army, waiting for Hok to commit her forces (then the moles strike...)
Posts: 4,080
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Planck's constant concerns the relationship between energy and frequency of photons.
It does not in any way imply that energy or frequency can only come from photons. |
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__________________
It is sad that this is necessary: Argumentum Ad Hominem: "You are wrong because you are ugly." Not Ad-Hom: "You are wrong and you are ugly." [X's posts are] ...as good as having 24 hours of Justin Bieber piped into your ears! - kmortis |
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#26 |
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Penultimate Amazing
Join Date: Mar 2008
Location: New Zealand
Posts: 10,775
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Why should I post clips when the answer is obvious to anyone who can read:
A phonon is not a photon. (You can read, Bishadi ?)Basically phonons are created by EM forces, i.e. the EM forces that create solids which then vibrate. Those vibrations are described in terms of phonons. But remember that these are quasiparticles, not real (or even virtual) particles. They are a concept used to get an approximate answer in quantum many-body problems. |
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Real Science: NASA Finds Direct Proof of Dark Matter (another observation) (and Abell 520) "Our Undiscovered Universe" by Terence Witt: Review 1; Review 2 |
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#27 |
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Banned
Join Date: Sep 2010
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it created the benchmark of the base unit of energy (the qubit)
and anything of science rendering the energy of a system is based on that 'h' if any drill down using a qm (qmc) etc frame. the basis of most all physics is based on it and the second is incorporated into the frame http://www.chemteam.info/Chem-Histor...anck-1901.html read it from planck, yourself that is the 1901 pub in english, with the math and his reasoned adherance to 'the law'. perhaps one day a few will actually read |
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#28 |
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Banned
Join Date: Sep 2010
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photon are not 'created' but converted energy to a point of detection photons are the base unit to measure no matter the wavelength. motion is based on it wiki........ In physics, electromotive force, or most commonly emf (seldom capitalized), or (occasionally) electromotance is "that which tends to cause current (actual electrons and ions) to flow." my point; at the molecular level, the combining of emf is what causes motion to the large or small. |
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#29 |
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Penultimate Amazing
Join Date: Mar 2008
Location: New Zealand
Posts: 10,775
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__________________
Real Science: NASA Finds Direct Proof of Dark Matter (another observation) (and Abell 520) "Our Undiscovered Universe" by Terence Witt: Review 1; Review 2 |
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#30 |
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Penultimate Amazing
Join Date: Mar 2008
Location: New Zealand
Posts: 10,775
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__________________
Real Science: NASA Finds Direct Proof of Dark Matter (another observation) (and Abell 520) "Our Undiscovered Universe" by Terence Witt: Review 1; Review 2 |
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#31 |
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Banned
Join Date: Sep 2010
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planck CREATED the belief and is like creating a religion to the ignorant (as if the bible is the word of god) ie... i am not discounting the contrbution, i am observing evidence that the world aint flat and the fools just can't get over themselves.
Quote:
let me guess, 'c' is absolute and that is the base unit (to you)? |
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#32 |
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Banned
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#33 |
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Penultimate Amazing
Join Date: Mar 2008
Location: New Zealand
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__________________
Real Science: NASA Finds Direct Proof of Dark Matter (another observation) (and Abell 520) "Our Undiscovered Universe" by Terence Witt: Review 1; Review 2 |
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#34 |
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Slide Rulez 4 Life
Join Date: Oct 2007
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It is starting to seem that way.
Bishadi: do you just look up big words and sting them together semi-randomly? Because in all honestly, that's what your posts read like. Either you are trolling or you are so fundamentally misinformed about basic physics that dialogue with you is impossible. |
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__________________
It is sad that this is necessary: Argumentum Ad Hominem: "You are wrong because you are ugly." Not Ad-Hom: "You are wrong and you are ugly." [X's posts are] ...as good as having 24 hours of Justin Bieber piped into your ears! - kmortis |
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#35 |
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Caffeinated Beverage
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__________________
If only there were brain condoms for those of us who practice unsafe lex. -- Complexity |
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#36 |
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Muse
Join Date: Dec 2009
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#37 |
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Intellectual Gladiator
Join Date: Jan 2006
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#38 |
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Intellectual Gladiator
Join Date: Jan 2006
Location: In the midst of a vast, beautiful & uncaring universe
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All particles will exhibit a wavelength in keeping with wave-particle duality - this should address Bishadi's question, with the exception of gravity (since we don't have the particle of gravity - gravitons - "in hand" yet). Interestingly, though, we do have a wave view of gravity (gravitational waves) via general relativity; however, we have yet to directly detect gravity waves.
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#39 |
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Penultimate Amazing
Join Date: Feb 2008
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#40 |
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Illuminator
Join Date: Jun 2007
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A phonon is a quasiparticle. It doesn't exisist. Zip zadda zilch. You can't isolate a phonon because it is imaginary. A useful figment of the human mind.
Actually quasiparticles are phenomeon that while aren't technically particles exhibit the properties of particles. The most commonly known one being the electron hole. |
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It's amazing how many of these "paranormal" icons seem to merge together. There always seem to be theories about how they link together in some way. I'm sure someone has a very good explanation as to how Bigfoot killed JFK to help cover Roswell.-Mark Mekes This isn't rocket surgery.-Bill Nye |
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