"Humor can be dissected as a frog can, but the thing dies in the process and the innards are discouraging to any but the pure scientific mind." — E. B. White
"They" always say if you have to explain a joke, it stops being funny. But "they" are probably assuming that no one ever tells jokes involving the graphs of trigonometric functions. Knowing the deeper meaning of a joke can be a fine thing, especially when it means learning a little bit of math or science along the way. Thus my new semi-, sort-of-, perhaps-regular feature: "The Big Bang Theory Exposed & Explained."
You do watch "The Big Bang Theory," don't you? You're not one of those dirtbag snobby little bitches who proudly declares they don't watch TV, are you? The show's been on since 2008 and if you do own a television, the syndicated reruns are fairly ubiquitous. "The Big Bang Theory" (TBBT) delivers tiny morsels of science to the masses with a cupful of sugar to help the medicine go down. I'm pretty sure there are people who have only ever heard the phrase "algebraic topology" because one of the characters used the term on an episode of the show.
Like most sitcoms, TBBT is really just another show about relationships, not science. But in this case, since most of the main characters' primary relationship is with science (factual science and science fictional science), quite a few of the show's jokes have touched on important scientific principles — anything from higher mathematics to particle physics to Newtonian mechanics and beyond.
Anyone can watch and enjoy the show, but there is so much more to appreciate if you can understand some of the science that gets talked about. Rather than leaving explanations to some lengthy, opaque, possibly wrong, definitely dry and shirtless-actor-free Wikipedia entry, I feel it's worthwhile to present a slightly more relevant and accessible explanation of that thing some character mentioned that you're afraid to admit went clean over your head. Your secret is safe.
So, all that having been said, let us begin the dissection...