Destin Sandlin discusses missile testing, astronaut applications, and why he created the wildly popular YouTube channel Smarter Every Day.

YouTube version of this episode: https://youtu.be/Anmaky0Kksw

Listen to the latest Signals & Threads podcast episode: https://jane-st.co/Numberphile-ST-WillWilson

Check out other episodes Signals & Threads here: https://jane-st.co/Numberphile-SignalsandThreads

Destin’s YouTube channel is Smarter Every Day: https://www.youtube.com/smartereveryday

We also co-hosts the podcast No Dumb Questions: https://www.nodumbquestions.fm/

With thanks to the Ben Delo Foundation - https://delo.org/

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Numberphile is created by Brady Haran