
...he built a small NUCLEAR reactor
in the shed...
The Big Bang Theory Season 1, Episode 4

the calculation
of NUCLEAR matrix elements.
The Big Bang Theory Season 7, Episode 20

Luckily for you,
this is not a NUCLEAR reactor.
The Big Bang Theory Season 1, Episode 16

at the Hubei Institute
for Nuclear Physics
The Big Bang Theory Season 7, Episode 6

because things
have gone NUCLEAR.
Breaking Bad Season 5, Episode 11