Dr. Phil Metzger on Twitter: "1/n. We were discussing this comic by @xkcd while examining simulated lunar regolith, today. It came from this great piece about research by physicist Dr. Karen Daniels
xkcd - The Last Molecule Biology is really struggling; they're barely at 93% and they keep finding more ants. | Facebook
![Xkcd Xkcd.com. Section 3 Recap ▻ Angular momentum commutators: [J x, J y ] = iħJ z etc ▻ Total ang. Mom. Operator: J 2 = J x 2 + J y 2 +J z 2 ▻ Ladder. - ppt download Xkcd Xkcd.com. Section 3 Recap ▻ Angular momentum commutators: [J x, J y ] = iħJ z etc ▻ Total ang. Mom. Operator: J 2 = J x 2 + J y 2 +J z 2 ▻ Ladder. - ppt download](https://slideplayer.com/2429168/8/images/slide_1.jpg)