Was a pretty awesome one!
We remember the births of:
Enrico Fermi (born 29 September 1901), awarded the 1938 Nobel prize for physics for “for his demonstrations of the existence of new radioactive elements produced by neutron irradiation, and for his related discovery of nuclear reactions brought about by slow neutrons”. Fermi also was part of the team that developed the atomic pile and the first controlled nuclear chain reaction,
Hans Geiger (born 30 September 1882), who together with Walther Muller invented the Geiger-Muller counter for detecting radiation.
I love being a librarian and the fact that this reminder was read perfectly legitimately at work in my librarian section of my RSS feeds as part of my normal day. I have a special love for Fermi because of Fermilab, which is frequently shown in very awesome documentaries.