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The Big Bang Theory

The Tangerine Factor - S1-E17

Corrected entry: When Penny and Leonard are talking to Sheldon about their date, Sheldon refers to Schrodinger's Cat, stating "The cat in the box is both alive and dead, until you open the box and find out." Yet the precise point of the Schrodinger's Cat example is that the cat cannot be both alive and dead. Schrodinger was arguing against physicists of the time who claimed that certain subatomic particles were special and could be in opposite states at the same time; his argument was that you can't make small systems special because a large and obvious system (e.g., the cat) could always be made to depend on the state of the smaller one, and for a large and obvious system to be in opposite states simultaneously is ridiculous. Now, this is pretty obscure and the misunderstanding of Schrodinger's Cat experiment is widespread, but this is Sheldon we're talking about.

Correction: This is not a factual error on Sheldon's part. He explicitly says that Schrodinger's experiment was an attempt to explain the Copenhagen interpretation of quantum physics, which implies that the cat could be both dead and alive until the box is opened and observed. While he doesn't explain that the point of the experiment was to critique the prevailing thought of the time, his overall point to Penny fits within the context as given.

The Grasshopper Experiment - S1-E8

Corrected entry: Leonard wonders aloud "I wonder who's going to tell his (Sheldon's) parents they're not having grandchildren." Leonard and Sheldon have been sharing the apartment for long enough for Leonard to know that Sheldon's father has been dead for a number of years, but it is at least since S1E04, when Sheldon's mother says "God rest his soul" while talking about his father.

New this month Correction: Episode S01E04 ended with Sheldon asking his mother if Dr. Gablehouser is going to be his new daddy and her saying "We'll see." So he could be the other "parent." Or his mother could have met someone else between the episodes.

The Septum Deviation - S8-E9

Corrected entry: In this episode Leonard has a snoring problem, but in episode 14 of season 3 when Sheldon brings up snoring Penny says, "Leonard doesn't snore." And in episode 8 of season 6, Sheldon lists not snoring as one of Leonard's positive traits.

New this month Correction: Leonard's snoring problem could easily be a recent issue, even though he didn't snore before. I myself didn't first begin snoring until I was in my late thirties.

The Bon Voyage Reaction - S6-E24

Corrected entry: Sheldon gets everyone's attention by tapping a glass and saying "that's a B flat, for those that don't have perfect pitch." It's not a B flat, it's a B.

Correction: The note is a dead-on Bb, assuming the western standard of A=440 Hz.

The Hawking Excitation - S5-E21

Corrected entry: Stephen Hawking tells Sheldon he made an arithmetic mistake on page 2 of his paper. Sheldon then quickly turns pages on his paper to find the error, but Sheldon turns several pages of his paper, way past the second page, and still finds the error Stephen had noted.

Correction: Scientific papers number their pages differently to how one would assume. There are pages before page 1 begins which are often numbered using Roman numerals. Therefore Sheldon is correct in turning several pages to find page 2.

The Wheaton Recurrence - S3-E19

Corrected entry: In previous episodes, it's mentioned that Leonard is lactose intolerant, but at the bowling alley he eats from a plate of chili cheese fries.

Correction: Just because he's lactose intolerant doesn't mean he can't have dairy (as opposed to Howard's peanut allergy where he can't have any peanut product). In fact, in several episodes others have made fun of Leonard's flatulent as a result of him having dairy, evidence that he's had dairy products before.


The Pork Chop Indeterminacy - S1-E15

Corrected entry: Sheldon asks Missy why she doesn't tell her friends that he is a toll taker on The Golden Gate Bridge. There are no toll takers on the Golden Gate Bridge. Tolls are paid by credit or debit card, a prepaid account or by invoice to the registered car owner's address. There is no way Sheldon would not know this.

Correction: S1-E15 aired in May, 2008, but the Golden Gate Bridge didn't switch to all-electronic toll collection until March 2013, and the decision to convert to electronic toll collection wasn't made until January, 2011.

The Thanksgiving Decoupling - S7-E9

Corrected entry: Penny states that she did not know that a Vegas wedding is an actual wedding, however in season 5 episode 24, The Countdown Reflection, she states that she knew tons of people who got married in Vegas.

Correction: Just because she knows people who got married in Vegas doesn't mean she didn't know the weddings were real.

The Codpiece Topology - S2-E2

Corrected entry: Sheldon says something about drinking red bull, but he doesn't drink coffee because it's a drug, so he would avoid red bull even more.

Correction: Sheldon said that he accidentally had a sip of Red Bull. It was an accident. He didn't do it on a purpose.

The Wiggly Finger Catalyst - S5-E4

Corrected entry: Five minutes into the show, Sheldon has written down what a dice roll will tell him what to do. He rolls the dice, pauses and looks at the list to see what he has to do for that dice roll. The problem is he has an Eidetic memory and wouldn't take the time to look at the list when he can already see it in his head.

Correction: This is not at all accurate. The list he his looking at is the Cheesecake Factory menu, not one he created himself. Given the nature of the menu page Sheldon looks at, it's unlikely he's ever looked at that page before.


The Locomotion Interruption - S8-E1

Corrected entry: Sheldon says he was in a fire while taking a train through Des Moines. The largest Des Moines in Iowa has not had passenger rail service since 1970, and the much smaller Des Moines in Washington and New Mexico have never had it at all.

Correction: There may not be a station operating in Des Moines, but there are passenger rail tracks that go through it, stopping at Osceola. The fire could have happened on the train, as he does not specifically mention being at a station there.

Greg Dwyer

The Irish Pub Formulation - S4-E6

Corrected entry: Sheldon is playing an online game he found. He yells to Leonard "I'm trapped in quicksand, the axe is dragging me down." Leonard then tells him to "Drop axe." Shortly after, Sheldon heads to bed, but he comes back saying "I know how to get the bucket. I can turn the axe around and use the handle to reach it." However, he does not have the axe as he has already dropped it.

Correction: Sheldon is playing an old text and type game, many of which have only one way to beat them, so once Sheldon died, he would be sent back to the start, eventually reclaiming the Axe.

The Holographic Excitation - S6-E5

Corrected entry: Penny observes that the pencil in the hologram is sharp but looking closely at the hologram shows that it's not.

Correction: She doesn't say that about the hologram; she says it about the actual pencil. Which it is, as Leonard puts the pointy end into the table that has equally spaced out holes in it, making it stand upright. The laser can't see below the hole in the table, which is why it doesn't appear to have a pointy end in the hologram.


The Gorilla Dissolution - S7-E23

Corrected entry: Even though the unpacked treadmill fell down the stairs and hit Howard's mother's foot whilst she was waiting down at the bottom of the stairs, there was still time for Howard's mother to move out of the way before the treadmill hit her.

Correction: Howard's mother is extremely overweight and would likely be unable to move out of the way in the time an average-sized person could.

The 21-Second Excitation - S4-E8

Corrected entry: Sheldon steals the 35mm movie canisters and 2 exterior metal cases for "Raiders Of The Lost Ark" so that they supposedly could see it at a later date. We then see Sheldon running with the movie canisters and cases. That would not even be remotely possible as the 2 sets of film weigh approximately 140-160 pounds. Each individual reel (of which there would be a total of 4) has a weight of somewhere between 30 and 35 pounds including the film and individual canister. If you add in the weight of just 2 canisters plus the carrying cases they come in, that's well beyond Sheldon's carrying capacity.

Correction: I worked with 35mm for 10 years. Each case weighed about 35 lbs for 3 reels.

The Cruciferous Vegetable Amplification - S4-E2

Corrected entry: Sheldon gets Leonard to read the roommate agreement, and it talks about robots. Sheldon is not a robot, he's using a Virtual presence device, therefore Leonard is under no obligation to follow the rules of the roommate agreement.

Correction: Like the Relationship Agreement, the Roommate Agreement is designed to be entirely for Sheldon's benefit. There's almost certainly an Exception Clause that lets him stretch the definition or alter it however he wants. Leonard would know this and probably not consider it worth fighting about.

The Dumpling Paradox - S1-E7

Corrected entry: When Penny tells Sheldon that he forgot a plasma grenade, she presses the right trigger on the Xbox controller. On Halo 3, the right trigger fires weapons, not grenades. That's the left trigger.

Correction: In Halo 3 you can change around some features of the remote, including which trigger fires grenades and weapons.

The Countdown Reflection - S5-E24

Corrected entry: There is not a snowball's chance of Howard becoming an astronaut. He suffers from Intermittent Cardiac Arrhythmia, something about which he is completely open. This is easily detectable by a simple electrocardiogram, which is a fundamental part of the many medical examinations a potential astronaut will have to pass. He wouldn't even be allowed to start basic training.

Correction: This is false. He says it is a transient idiopathic arrhythmia which by nature means it is a different rhythm but there is nothing wrong with it. Therefore would not be an issue for an astronaut.

The Large Hadron Collision - S3-E15

Corrected entry: The "Hollermus" that Sheldon allegedly makes is not actually a Swiss breakfast dish. It is in fact simply a kind of jam made from elderberries which is quite common in most German-speaking countries. Also, judging by the ingredients on the table (eggs, milk, butter) and the food on the plate, the dish prepared by Sheldon seems most likely to be an omelette with a Vienna sausage, which is in no way traditionally Swiss.

Correction: He actually says Cholermus which is a swish breakfast dish similar to a pancake, I had to find a script online when I first heard it to figure out what it was.

The Tangerine Factor - S1-E17

Corrected entry: Penny storms into Sheldon and Leonard's apartment to throw her boyfriend's iPod out of their window and yell at her boyfriend who has just left. Raj then finds the iPod on his way in. However, according to the layout of the building with the front door being to the left of the elevator, the front side of their apartment building would be on Penny's side, so she should have thrown it out of her own apartment window. The window through Sheldon and Leonard's apartment would lead to the back.

Correction: There's no indication from the scene that she's catching him as he is stepping out the door. He could have had his car parked behind the building and was on his way round to the front.


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Sheldon: You're not done with her, are you?
Leonard: Our babies will be smart AND beautiful.
Sheldon: Not to mention imaginary.



While the group are trying to figure out how to play Halo without Howard, Leonard jokingly suggests cutting Raj in half. Raj responds, "Oh sure, cut the foreigner in half. There's a billion more where he came from." But Penny is in the room with them, so there's no way he should be able to talk in front of her, or even if he's been drinking, the fact alcohol helps him isn't realised until the next episode, so the fact he can speak with her there should have surprised everyone, including him.



After Sheldon mentions a molecular sieve, they go over to 4a, their apartment. 4a is a kind of molecular sieve.


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