Veteran to janitor to physicist: how Josh Carroll changed his life with YouTube

NEXT with John Koetsier · Feb 3, 2021 · 17m

Could you learn trigonometry in 3 weeks if your life depended on it?

In this episode of TechFirst with John Koetsier we chat with Josh Carroll, who volunteered with the US Army after 9/11 before he finished high school, did 3 tours of duty in Afghanistan, then came back and worked, among other jobs, as a high school janitor.

In the library of the high school he was cleaning he found A Brief History of Time, by Dr. Stephen Hawking, and rediscovered his love of science. Then he taught himself advanced math via YouTube on his path to becoming a physicist ...

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