Hint. Madame Curie had her husband
to help her.
The Big Bang Theory Season 3, Episode 7
...Madame Curie.
The Big Bang Theory Season 6, Episode 18
Oh, Madame C.
The Big Bang Theory Season 7, Episode 11
Um, Isaac Newton, Madame Curie
and Niels Bohr.
The Big Bang Theory Season 3, Episode 7
...this is Madame Curie killing herself
by discovering radium.
The Big Bang Theory Season 6, Episode 4