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Lotsa stuff, basically scientific -- molecular biology, organic chemistry, medicine (neurology), math -- and music

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Neurologists and neurosurgeons are well acquainted with the Gibbs Donnan effect even if they don’t know it by name. Damage the neuronal or astrocytic cell membrane, and positive ions and water rush inside to neutralize the negative charge on the many...
OK class. Pop quiz. Draw the structure of C304 H264 (not a misprint). To help you out there are 6 sharp NMR peaks (roughly the same size) between 7.8 and 8.5, a doublet at 8.6 and a large peak at 1.45. This obviously tells you the molecule is quite symmetric.Give...
If you are in a train going x miles an hour and throw a paper airplane forward at x feet per second (or x * 3600/5280 miles per hour, relative to someone outside the train the train sees the plane move a bit faster than x miles an hour. Well that’s the...

Most popular posts

Neurologists and neurosurgeons are well acquainted with the Gibbs Donnan effect even if they don’t know it by name. Damage the neuronal or astrocytic cell membrane, and positive ions and water rush inside to neutralize the negative charge on the many...
OK class. Pop quiz. Draw the structure of C304 H264 (not a misprint). To help you out there are 6 sharp NMR peaks (roughly the same size) between 7.8 and 8.5, a doublet at 8.6 and a large peak at 1.45. This obviously tells you the molecule is quite symmetric.Give...
If you are in a train going x miles an hour and throw a paper airplane forward at x feet per second (or x * 3600/5280 miles per hour, relative to someone outside the train the train sees the plane move a bit faster than x miles an hour. Well that’s the...