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From: Hawkman on 12 May 2010 20:05 On May 13, 2:19 am, Uncle Al <Uncle...(a)hate.spam.net> wrote: > If they are above absolute zero and they are molecular they are > spinning - read your P-Chem book about the specific heats of gases. > Can you find the average diameter of an ellipsoid? Can you do a BET? I don't know really know this, not without some knowledge of calculus. The average diameter of an ellipsoid should be the length of all the possible lines crossing the center of the ellipsoid divided by the number of the lines.
From: Darwin123 on 12 May 2010 20:15 On May 12, 5:23 pm, Geode <leopoldo.perd...(a)gmail.com> wrote: > But I have never find a clear process to state this number. > Does anyone had read about it? > Geode > . Here is determination using electrolysis and the electric charge of an electron. The Faraday constant is the electric charge of 1 mole of electrons. It can be determined by using electrolysis. The amount of metal deposited on an electrode is proportional to the electric current times the time (which is electric charge). Faraday's constant is the proportionality for a monovalent metal. The Faraday constant was determined in 1834 to be experiment to be F=96485 C /mol. See the links http://en.wikipedia.org/wiki/Faraday%27s_law_of_electrolysis http://en.wikipedia.org/wiki/Faraday_constant The Millikan oil drop experiment in 1909 determined the electric charge on a single experiment. The charge measured on a single electron is q=1.5924(17)×10-19 C. See the link: http://en.wikipedia.org/wiki/Oil_drop_experiment Avogrado's number N can be easily determined by the simple ratio N=F/q The answer is N=6.022x10^23 I am sure there were other methods to determine an estimate of Avogrados number before 1909. However, I think this method is one of the simplest, conceptually.
From: Sam Wormley on 12 May 2010 20:22 On 5/12/10 5:25 PM, Hawkman wrote: > On May 13, 12:36 am, Sam Wormley<sworml...(a)gmail.com> wrote: > >> "The value of the Avogadro constant was first indicated by Johann Josef >> Loschmidt who, in 1865, estimated the average diameter of the molecules >> in air by a method that is equivalent to calculating the number of >> particles in a given volume of gas.[7] > > But how can molecules have a diameter if they are not circles? Only > circular shapes have a diamter but molecules are not circular. I bet if you try real hard you could come up with the average diameter of potatoes.
From: spudnik on 13 May 2010 14:50 yeah, but what is the integral value? do you know the surfer's value of pi? > 12 grams of C-12 is > Avogadro's Number of carbon atoms. thus: well, that is where the problem with assigning a particle to a wave, a la de Broglie et al, comes. the assumption, that causes folks to say "particle," is that because a quantum (wave) of light is absorbed by one atom of siver dioxide (say, in the photographic emulsion; or, other detector) --some how-- that it must be that a rock of light hit the electronic orbital (although this is never specified, as to how it could be, and the whole problem of EM is also hard to describe, and variously is). this is really all of a confusion from Newton's "geometrical optics," that is, the "ray" of light, which is just one "normal" to the wave (or Huyghens wavelet). > You assume the particle exits both slits because you assume the > particle creates the interference pattern in and of itself. thus: about your five "cloture" events, the real problem is that "the Fed" was never properly ratified (and is unconstitutional for that reason, if not directly; it is modeled upon the Federal Reserve System of England). of coursel the 527 cmtes. have essentially taken over the TV advertizing on all national issues & candidates, through an Act that was passed unaanimously in both houses. > "Senate rules don't trump the Constitution" --http://GreaterVoice.org/60 thus: I've been saying, for a while, that if "green" gasoline can be made, and gasoline fuel cells, what is the problem with Fossilized Fuels (TM), which ain't fossilized? ... anyway, see "Green Freedom" in the article, which is not quite what I was refering to! > Thorium has other interesting features. For example, in > oxide form as would probably be used, Thorium has a > higher thermal conductivity than Uranium oxide. That > means the fuel will be cooler for any given power output. > It's got interesting mechanical properties also. > There are a number of new reactor designs being touted. > http://thorium.50webs.com/ thus: Copenhagen's "reifiying" of the mere probabilities of detection, is the biggest problem, whence comes both "perfect vacuum" and "quantum foam" etc. ad vomitorium, as well as the brain-dead "photon" of massless and momentumless and pointy rocks o'light, perfectly aimed at the recieving cone in your eye, like a small pizza pie. thus: all vacuums are good, if they suck hard enough, but there is no absolute vacuum, either on theoretical or Copenhagenskooler fuzzy math grounds. thus: magnetohydrodynamics is probably the way to go, yes; not "perfect vacuum or bearings" -- and, where did the link about YORP, include any thing about the air-pressure?... seems to me, it's assuming Pascal's old, perfected Plenum. twist your mind away from the "illustrated in _Conceptual Physics/for Dummies_" nothingness of the massless & momentumless & pointy "photon" of the Nobel-winning "effect" in an electronic device -- yeah, CCDs -- the Committee's lame attempt to "save the dysappearance" of Newton's corpuscle. also, please don't brag about free God-am energy, til you can demonstrate it in a perpetuum mobile! > It stops because it has bad bearings. These asteroids thus: so, a lightmill is that thing with black & white vanes on a spindle in a relative vacuum? you can't rely on "rocks o'light" to impart momentum to these vanes, only to be absorbed electromagnetically by atoms in them; then, perhaps, the "warm side" will have some aerodynamic/thermal effect on the air in the bulb, compared to the cool one. thus: even if neutrinos don't exist, Michelson and Morely didn't get no results! > Could neutrino availability affect decay rates? thus: every technique has problems. like, you can't grow hemp-for haemorrhoids under a photovoltaic, without a good lightbulb. the real problem is that, if Santa Monica is any indication, the solar-subsidy bandwagon is part of the cargo-cult from Southwest Asia (as is the compact flourescent lightbub, the LED lightbulb etc. ad vomitorium). > Government subsidies, and fat returns on PVs? --Light: A History! http://wlym.com
From: PD on 13 May 2010 14:56 On May 12, 5:25 pm, Hawkman <worldspiri...(a)yahoo.com> wrote: > On May 13, 12:36 am, Sam Wormley <sworml...(a)gmail.com> wrote: > > > "The value of the Avogadro constant was first indicated by Johann Josef > > Loschmidt who, in 1865, estimated the average diameter of the molecules > > in air by a method that is equivalent to calculating the number of > > particles in a given volume of gas.[7] > > But how can molecules have a diameter if they are not circles? Only > circular shapes have a diamter but molecules are not circular. A whirling cylinder has a spherical envelope.
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