Anyway, Sheldon, we're at a decision point
to run the XENON stream
The Big Bang Theory Season 10, Episode 20
Well, if we run the XENON stream
through the cryocooler,
The Big Bang Theory Season 10, Episode 20
I'm telling you,
if XENON emits ultraviolet light...
The Big Bang Theory Season 4, Episode 4
Yes, well, if we lived in a world where
slow-moving XENON produced light...
The Big Bang Theory Season 4, Episode 4
And XENON has a bigger nucleus,
The Big Bang Theory Season 11, Episode 8