When:
March 22, 2023 all-day
2023-03-22T00:00:00-06:00
2023-03-23T00:00:00-06:00
Where:
http://www.laserfest.org/lasers/history/early.cfm
On 22 March 1960, the first patent for a laser (light amplification by stimulated emission of radiation) granted to Arthur Schawlow and Charles Townes.
Image courtesy of Pixabay.com, CC0.
