RIP physicist Arno Penzias, 1978 Nobel Laureate in physics

Arno Penzias, who along with physicist Robert Woodrow Wilson discovered the cosmic microwave background radiation and was awarded the 1978 Nobel Prize in physics, has died on Jan 22, 2024, age 90.

https://en.wikipedia.org/wiki/Arno_Allan_Penzias#cite_note-:0-3

https://www.npr.org/2024/01/24/1226572843/arno-penzias-obituary-big-bang-theory

Wow. I had no idea he was still alive. I met him in graduate school, which was a long, long time ago.

What a fantastic discovery and collaboration. Like many PF members I enjoy working on and reusing old electronic equipment for new missions. Discovering the cosmic microwave background radiation (CMBR) using an old musty radar receiver ranks among the finest.

I just posted the white dielectric anecdote in the thread: https://www.physicsforums.com/threa...n-the-history-of-physics.1059261/post-7033806