The wheel was a great idea.
Relativity was a great idea.
The Big Bang Theory Season 1, Episode 7
...of the equations of general RELATIVITY
and hydrodynamics...
The Big Bang Theory Season 6, Episode 24
...with general RELATIVITY
than does string theory.
The Big Bang Theory Season 2, Episode 2
When Einstein came up
with special RELATIVITY...
The Big Bang Theory Season 3, Episode 14
about RELATIVITY,
was always rooted in twins.
Westworld Season 3, Episode 8