each vibration is
a different PARTICLE.
The Big Bang Theory Season 11, Episode 13
But Penny has no interest
in subatomic PARTICLE research.
The Big Bang Theory Season 3, Episode 15
Senior theoretical PARTICLE physicist
at CaITech, focusing on M Theory.
The Big Bang Theory Season 3, Episode 14
Here's where we derived the mass
of the dark-matter PARTICLE.
The Big Bang Theory Season 3, Episode 4
of the Higgs boson PARTICLE,
and you said,
The Big Bang Theory Season 5, Episode 21