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You are not logged in. #1 20060302 04:12:33
Pascal's triangle strikes againSo, I'm sitting (lying, actually) peacefully, studying H NMR spectroscopy for my Organic Chemistry class, when I come to the topic of splitting. Basically, NMR spectrometers apply a magnetic field to the substance under study, and different hydrogens emit peaks of RF radiations at slightly different frequencies based on the structure of the molecule; this lets us infer a lot of information about the a molecule's structure. Code:1:1 1:2:1 1:3:3:1 1:4:6:4:1 1:5:10:10:5:1 1:6:15:20:15:6:1 Does that look familiar to anyone else? Score one for Pascal! El que pega primero pega dos veces. #2 20060302 04:17:03
Re: Pascal's triangle strikes againWanna know something other? Last edited by krassi_holmz (20060302 04:17:49) IPBLE: Increasing Performance By Lowering Expectations. #3 20060302 07:47:42
Re: Pascal's triangle strikes againOr my version: Pascal's Triangle "The physicists defer only to mathematicians, and the mathematicians defer only to God ..."  Leon M. Lederman #4 20060302 12:43:44
Re: Pascal's triangle strikes againOn the web page krassi h. pointed out, their is a mistake in the diagram of pascal's triangle. The 186 in the bottom row should be a 286 I think. igloo myrtilles fourmis #5 20060302 12:56:10
Re: Pascal's triangle strikes againI really enjoyed MIF's pages on Pascal's triangle! My favorite part was the picture of the marbles in a tetrahedron. Wonderful implications, how the diagonal rows are possibly for each successive dimension that we cannot visualize in our 3D world, at least that's what we can see with our eyes. igloo myrtilles fourmis #6 20060302 12:59:46
Re: Pascal's triangle strikes againWhat is vicinal hydrogens?? Is it in close proximity to each other?? igloo myrtilles fourmis #7 20060302 13:21:31
Re: Pascal's triangle strikes againI found this, but wish it explained more. igloo myrtilles fourmis #8 20060302 13:56:17
Re: Pascal's triangle strikes againAnd this is fun to read... http://www.shu.ac.uk/schools/sci/chem/t … c/nmr1.htm igloo myrtilles fourmis #9 20060302 15:42:04
Re: Pascal's triangle strikes again"Vicinal" hydrogens are separated by three bonds. So, in this structure: H3CCH3 (ethane), 3 hydrogens are vicinal to three others. El que pega primero pega dos veces. #10 20060302 16:40:30
Re: Pascal's triangle strikes againThanks for the info, ryos, and Boy, this chemistry reading is really fascinating. igloo myrtilles fourmis #11 20060302 16:43:35
Re: Pascal's triangle strikes againYa, It's difficultnot so easy as math!!! IPBLE: Increasing Performance By Lowering Expectations. 