Why Sugar Always Twists Light To The Right – Optical Rotation

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From Steve Mould.

The first 100 people to go to https://blinkist.com/stevemould will get unlimited access for 1 week to try it out. You’ll also get 25% off if you want full membership.

A solution of sugar water can actually change the orientation of polarised light. Glucose/dextrose always twists light to the right! It’s all to do with the superposition for quantum states and the chirality or handedness of sugar molecules.

Here’s my video on why molecules created by biological processes only ever have one or the other handedness (Homochirality): https://youtu.be/SKhcan8pk2w

This online wave generator is amazing – https://emanim.szialab.org/index.html (thanks @kehrnal for pointing it out). – Set the two waves to left and right circular, tick the box to show the addition, tick the box to add a material then change the refractive index of the material! Here’s a link where that’s already set up for you: https://emanim.szialab.org/index.html?7VWwGgABgA

Here’s Vihart’s video on Metachirality which is relevant! https://www.youtube.com/watch?v=8NmHZEKkkpM

Credits:

First electromagnetic wave animation by And1mu (https://commons.wikimedia.org/wiki/File:EM-Wave.gif)

Superposition animations by Pete McPartlan

You can buy my books here:
https://stevemould.com/books

You can support me on Patreon here:
https://www.patreon.com/stevemould

just like these amazing people:

Joseph Galliera
Nathan Williams
Matthew Cocke
Glenn Watson
Mark Brouwer
Joseph Rocca
Joël van der Loo
Doug Peterson
Yuh Saito

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