75
votes
Accepted
Was Sheldon Cooper ever proven wrong?
Apparently, there were a couple of episodes where he was wrong. I am adding what I remember, but will add more if I come across them later.
In the episode, The Hamburger Postulate, Dr. Leslie Winkles ...

A J♦
- 57.8k
51
votes
Accepted
What is the origin and reason for Sheldon's triple knock in The Big Bang Theory?
From wikia:
In the episode "The Hot Tub Contamination", the origins of this knocking ritual are revealed. When Sheldon was 13 years old, he once came home because they ran out of math to teach him. ...
50
votes
How do TV shows go about getting "unbranded" cars?
They modify them. The Big Bang Theory is filmed on the Warner Brothers Studio lot. In addition to providing locations for film and television productions, WB offers prop rental services that include ...
47
votes
Accepted
How do you combine the elements in Sheldon's T-shirt?
Chemicals + lightning = The Flash.
Sheldon is well known to love the comic character The Flash.
This shirt is an equation for how you create that character.
As you can see from the link above, the ...
35
votes
What's the significance of Wil Wheaton wearing a Star Trek uniform when visiting the cinema for the Star Wars movie?
The plot and dialog from the episode answer this. Wil Wheaton is a troll, and enjoys messing with people (remember the bowling games?). And he's most known for playing Wesley on Star Trek TNG. The ...
30
votes
Does Sheldon Cooper have Asperger's Syndrome?
A simple answer, No.
Sheldon Cooper doesn't have Asperger, he has 'Sheldony'
Some viewers have asserted that Sheldon's behavior is consistent with Asperger syndrome. The writers have stated that ...
29
votes
Was Sheldon Cooper ever proven wrong?
In The Romance Resonance he read a data table in a text book wrong
Sheldon: This is the very copy of The Handbook of Chemistry and Physics in which I looked up the reaction rates of mendelevium and…
...
27
votes
Accepted
How did the word "Bazinga" originate?
It's a real obscure word that Sheldon's actor overheard and decided it was funny to use. From an interview with AOL:
"One of the writers, he used to say it, apparently in the writers' room. That'...
27
votes
How do you combine the elements in Sheldon's T-shirt?
It is a reference to one of the origin stories about The Flash.
As a scientist, he was working in his lab when a lightening bolt struck some chemicals which turned him into The Flash.
That's what ...

A J♦
- 57.8k
25
votes
Accepted
What kind of grin was Raj hinted to have?
Close, but (given the context) the reference is presumably to a shit-eating-grin:
1. (idiomatic, vulgar) A broad smile indicating self-awareness that may suggest self-satisfaction, smugness, ...
23
votes
Accepted
Why does Sheldon Cooper love The Flash?
From collider.com on Comic Con 2012:-
A child asks Parsons, “Why does Sheldon like The Flash?”, Parsons
threw the question to the showrunners, and Prady responded that
Sheldon liked the Flash ...
23
votes
How do you combine the elements in Sheldon's T-shirt?
It is the classic origin for his powers.
Even in the new CW Flash, Barry Allen was mixing some chemicals in his CSI lab when Star Labs had its explosion. The resulting energy wave also created some ...
22
votes
Do The Big Bang Theory characters take a stand on Marvel vs DC?
Are they fans of both Marvel and DC characters?
They seem to be fans of both Marvel and DC characters, but we see more DC characters than Marvel ones.
In the S03E13, we see Sheldon agreeing with ...

A J♦
- 57.8k
22
votes
Accepted
What is Stuart's full name?
His full name is Stuart David Bloom.
Stuart's family name Bloom is revealed on his Facebook page in The
Flaming Spittoon Acquisition (S05E10) when Sheldon is examining his
page, and was confirmed ...
20
votes
Accepted
What visual cues distinguish the different floors on The Big Bang Theory?
Small elements are changed such as plants and the door numbers
Noted here: How does ‘The Big Bang Theory’ staircase work?
However, in reality, there is only one hallway-staircase set on Stage ...
18
votes
Why does Young Sheldon behave like an adult while Adult Sheldon behaves like a kid?
I'm not an expert in the two series, but Sheldon Cooper is supposed to be an eccentric genius. I believe that the writers say that they don't use Asperger's syndrome as a basis for writing Sheldon, ...
17
votes
Accepted
Who was Penny mentioning in S02E04 "The Griffin Equivalency"?
The quote is actually:
Come on, this is huge, Raj is going to be in People magazine. And he didn’t even have to knock up one of the Spears sisters.
She is referencing Britney and Jamie Lynn Spears,...
17
votes
Accepted
Is it required to watch The Big Bang Theory to understand the plots of Young Sheldon?
Based on the premise set in the pilot, I will say No. As it looks fully self-contained.
It's a show about an odd-one-out kid which is apparently Sheldon, that's it. We get to know about his family ...
15
votes
What is Stuart's full name?
His name (Stuart Bloom) was revealed in his Facebook page:
And his full name is Stuart David Bloom, as Howard mentions his middle name in S08E24 aka The Commitment Determination:
Howard: His middle ...
14
votes
Accepted
When will Howard Wolowitz get his PhD?
Considering the real world requirements to achieve a PhD, then yes it's realistic that it will take Howard 2 to 3 years (each season is one year roughly) to gain a doctorates degree.
See this answer ...
14
votes
Accepted
What's the exact problem with Raj?
It's not a question of talking in front of women per se...but talking TO women due to extreme shyness around them.
It's Selective Mutism
...according to a Wikia.
For the first six seasons, his ...
13
votes
What is Penny's last name in Big Bang Theory?
Now that Penny and Leonard are married, her last name is Hofstadter. Leonard got down on one knee in episode 2 of this season (9) and asked her, "Penny Hofstadter, will you stay married to me?" to ...
13
votes
Accepted
What floor do Leonard, Sheldon and Penny live on?
In the US, the ground floor is the first floor... so there are only three flights of stairs between the ground floor and the fourth floor.
There's no missing floor.
13
votes
Accepted
Where does Amy Farrah Fowler work?
There is no information on Amy's job in or out of universe at this time. All we know is that it is not Caltech, she's a researcher, and was kicked off the monkey project due to some mutual poop ...
13
votes
Accepted
What makes the "Tweety Bird saw a Romulan" joke funny in the original version?
There is no deeper joke in English. It is "funny" simply because Sheldon said something nerdy yet incorrect in a confident manner.
That it apparently also makes a pun in French is une bonne ...
12
votes
Is Penny an alcoholic?
TL;DR: Q: “Is Penny an alcoholic?” A: No.
Longer answer: she might have (had) a problem of alcohol abuse
Unless the writers are hiding something from the viewers, we see that Penny enjoys drinking ...
Only top scored, non community-wiki answers of a minimum length are eligible
Related Tags
the-big-bang-theory × 114character × 31
plot-explanation × 14
young-sheldon × 5
props × 4
analysis × 3
dialogue × 3
realism × 3
reference × 3
production × 2
title × 2
first-appearance × 1
soundtrack × 1
star-trek × 1
distribution × 1
friends × 1
doctor-who × 1
translation × 1
time-travel × 1
indiana-jones × 1
south-park × 1
seinfeld × 1
origin × 1
sitcoms × 1
raiders-of-the-lost-ark × 1