How do Cosmologists measure Space-Time? Professor Lewis explains Einstein's clocks and the new cosmic ticks.  <a href= "https://drkarl.com">DrKarl.com</a> <a href= "https://www.geraintflewis.com/">Geraint F Lewis</a>

Cosmic Ticks #2 with Prof Lewis (360)

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. 
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