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Why Sugar Always Twists Light to the Right – Optical Rotation
- peter_d_sherman 6y agoOpinion: A very, very important video for future physics and future Physicists... (Note to Future Self: Revisit this video at least a few times in the future -- there's a lot of great ideas here, explcit, but also implicit (implied, derivable)... On the animated graphics screens, pay specific attention to the green (straight) line in the center of the moving red/blue waves, and ask yourself this question: Does a given point of space in that line move? Why or why not? If it doesn't, then WHY? And if it does, then HOW? ? Also, for bonus points! <g> If it doesn't -- then how could it be made to move? And if it does -- then how could it be stopped? ? (In other words... 'Splain your position(s)! <g>) You know, that old motion and rest trope/meme/chestnut -- from the Ancient Greeks... who probably stole, er, borrowed, er, stole it -- from earlier ancient cultures... you know, "Intellectual Property Theft" <g>) (Related Philosophical Question: Is "Cultural Appropriatation" also "Intellectual Property Theft"? <g> Hmmm... <g>)
- gus_massa 6y agoNitpicking: Note that this only applies to some sugars like Sucrose that is the normal sugar used at home, and also Glucose. (The model he has in his hand in the minute 14 is probably Glucose. (I'm too lazy to check the direction of all the OH.) Sucrose has approximately the double of size.) But other sugars like Fructose (found in fruits and honey) rotate the light in the other direction. Using the dry noodles metaphor, there are many brands and you can buy some that rotate in one direction and other that are different and rotate in the opposite direction.