
...and tried to build
a nuclear REACTOR in the tool shed.
The Big Bang Theory Season 8, Episode 23

It was already targeted
to poke around a nuclear REACTOR in Siberia.
The Big Bang Theory Season 2, Episode 7

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

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