Recently, Roy Kerr claimed that Roger Penrose's Nobel prize-winning singularity theorem was wrong. This was widely hyped. But here, Roger Penrose and other leading relativists point out that it was Kerr who is in error. How did everyone get it so wrong ?youtube.com/watch?v=foq4nVAw…
150 YEARS AGO TODAY December 01, 1873 The SS Høvding arrived in Napier New Zealand from Oslo Norway after a voyage of 115 days. The passengers included my 2 year old grandmother and her Norwegian born father and Swedish born mother.
Fascinated to read this about liquid mirror telescopes (which I know nothing about) mainly because Henry Skey was my great grandfather.
Unique liquid-mirror telescope set to survey zenith in India astronomy.com/news/2022/08/u…