Dr Karl’s a curious optimist – a great combination for a science lover. Join him and his guests for weird facts, amazing conversation and remember, it’s never too late for a happy childhood. https://drkarl.com/
http://shirtloadsofscience.libsyn.com/podcast
episode 43: Cosmic Ticks #1 with Prof Lewis (359)
How do Cosmologists measure Space-Time? Professor Lewis explains Einstein's clocks and the new cosmic ticks.
DrKarl.com
Geraint F Lewis