@mcnees Technically grad level, but I'm always trying to write to be understandable at an advanced UG level.

To celebrate finishing my Electromagnetic Optics textbook, here's one of my favorite figures: it shows the theoretical prediction of the frequency dependence of the refractive index of water in the microwave regime. Circles are experimental data, which fit perfectly.

While researching some #OldSchoolDungeonsAndDragons stuff, came across this fascinating post about TSR's lawsuits against everyone in gaming. https://www.rpg.net/columns/advanced-designers-and-dragons/advanced-designers-and-dragons47.phtml

For day 29 of Blogtober, I look at one of my favorite collections of all time: Manly Wade Wellman's stories about John the Balladeer, an Appalachian musician and wanderer. https://skullsinthestars.com/2023/10/29/john-the-balladeer-by-manly-wade-wellman/

Drove up to Blowing Rock for peak fall colors.

Me, as all the third-tier GOP members announce their candidacy for Speaker:

Oh shit the movie Better Off Dead predicted the Apple goggles almost 40 years ago

It is still kinda weird when I think about how I am basically a professor of optics, but had almost no optics classes as a student. (I am trained generally as a physicist, and when I changed to optics I largely taught myself.)

How about a quick #OldSchoolDungeonsAndDragons thread? X6: Quagmire! (1984), by Merle M. Rasmussen.

Hey, got the first five-star rating on Goodreads for my Invisibility book! Thank you to whomever that was!

My book on the history and science of invisibility is now available! Here is a post explaining what it is all about! I hope y'all enjoy! https://skullsinthestars.com/2023/04/11/invisibility-the-history-and-science-of-how-not-to-be-seen/

Two days until my book on the history and science of invisibility is released! To celebrate, here's another reblog of a post on a classic invisibility story in fiction. https://skullsinthestars.com/2023/04/09/the-elixir-of-invisibility-by-henry-kuttner-2/

So this is my “holy grail” #OldSchoolDungeonsAndDragons product that arrived yesterday!

Still fighting to catch up on #Dungeon23! Here's another big room.

Another #Dungeon23!

Another room for #Dungeon23.

More #Dungeon23...

Another #Dungeon23 room!

Final February #Dungeon23 entry! Almost caught up to current!

Entry Temple Level
1. Door of Attitude. The door has the words “Say something friendly and enter” in Infernal and Draconic. Any direct statement to the door will open it, but will cause impacts further in the dungeon. Answers can be classified as: A. Sincere, B. Hostile, C. Sarcastic