The group is arguing over Superman’s abilities and where he got those abilities from.
(Season 1, Episode 2: The Big Bran Hypothesis)
Leonard: Excuse me, your entire argument is predicated on the assumption that Superman’s flight is a feat of strength.
Sheldon: Are you listening to yourself, it is well established that Superman’s flight is a feat of strength. It is an extension of his ability to leap tall buildings, an ability he derives from exposure to Earth’s yellow Sun.
Howard: Yeah, and you don’t have a problem with that, how does he fly at night?
Sheldon: Uh, a combination of the moon’s solar reflection and the energy storage capacity of Kryptonian skin cells.
Penny: I’m just gonna go wash up.
Leonard: I have 26 hundred comic books in there, I challenge you to find a single reference to Kryptonian skin cells.
Sheldon: Challenge accepted. (Tries door.) We’re locked out.
Raj: Also, the pretty girl left.
trivia = details or information that are not important
to be predicated on something = If an idea or argument is predicated on something, it depends on the existence or truth of this thing
assumption = something that you accept as true without question or proof
feat = something difficult needing a lot of skill, strength, courage, etc. to achieve it
to derive from something = to come from something
solar = of or from the sun
solar reflection = the return of sun light from a surface
Kryptonian = According to Wikipedia, Kryptonians are a fictional extraterrestrial race within the DC Comics universe that originated on the planet Krypton. The term originated from the stories of a superhero termed “Superman”.
Challenge accepted = A saying typically used in a situation where someone says a definite statement you disagree with and you want to prove him or her wrong.
(definitions taken from the Cambridge and Urban Dictionary)
Another funny scene from Big Bang Theory:
Martin hat es sich zum Ziel gesetzt, Blogbeiträge, Videos und Onlinekurse zum Thema ‚Englisch lernen‘ zu verfassen, die abwechslungsreich, effektiv und lehrreich sind. Vor allem solltest du dadurch Englisch schneller und mit mehr Spaß lernen können als bisher.