Tad Thurston 

@firstexcitedstate
·
200 subscribers
Professor of Physics and Astronomy for 19+ years at a CC, previously a 3D software engineer. Writes about physics and astronomy topics that are crazy interesting to me, and maybe 9 other people. :)

First Excited State

By Tad Thurston
Extremely cool things we can know about the Universe with a bit of physics and/or mathematics already in the bank.