Maths In The Movies (Part 2 of 2)

[@Maffoo]

Fun fact, that woman they interview (Lucie Green) is Matt's wife. FUN EH?

[@gregdesouza17]

+NaiveAmoeba and not fictional

[@lpsp442]

+Maffoo I did not know that. Thanks Maffoo!

[@anilpratap6952]

She wasn't his wife when this video was uploaded. I am guessing they were dating though.

[@KennethSorling]

I like that she gave such an exhaustive, complete, detailed and informative answer.

[@habelebubele]

How is this not a full fledged series yet?

[@alandouglas2789]

I always laugh when I watch that episode of Star Trek when they increase the ship microphones so they can hear them better, by... "One to the fourth power" that's 1⁴ (1x1x1x1) hahaha classic

[@martijnvanweele6204]

I'm pretty certain that if you increase something by 0.25 power, your multiplication becomes 1.25x1...

[@jonathanschossig1276]

martijn van weele 1^0.25=1^(1/4)=fourth root of 1=1

[@martijnvanweele6204]

Unknown Name I see, I misread...

[@NYsummertimeCHI]

SiaIsQueen He said to the fourth power not to the power of one fourth! The fourth power of one is just 1^4.

[@Freakschwimmer]

This series needs to be continued!

[@p3pijn]

Did Matt seriously write down that -1990 > 1989 ? I know what he meant, but this is maths, we need to be rigorous!

[@msclrhd]

+Pepijn Koorenhof Welcome to Maths in Maths in the Movies!

[@jakce1]

+Laurelindo ...which means we need a meta-video about this one!

[@guard13007]

+Pepijn Koorenhof No, he clearly wrote that 1990 > 1989. The fact that the 1990 was being subtracted from another number was unrelated.

[@logical-functionsmodel9364]

+Pepijn Koorenhof lol

[@DNVIC]

Classic parker inequality

[@sam08g16]

2:59 is that Brady??

[@kilikx1x]

That Gen joke killed me

[@Bobstew68]

+kilikx1x Didn't notice it until I saw your comment.. Brilliant xD

[@ffggddss]

Matt Love this (too short!) series! With regard to the possibility of daylight simultaneously at the White House (39ºN, 77ºW) and at the Great Pyramid of Khufu, aka, Cheops (30ºN, 31ºE); it is actually possible. The difference in longitude, 108º, corresponds to 7.2 hours, so it could be morning daylight in DC and late afternoon daylight at Giza, especially in June or July. But the Sun can't be very high in both places simultaneously. So your wife is (essentially) right (isn't everyone's?).

[@piokul]

That's exactly what I wanted to say! You could have 9 am in Washington and 4:12 pm in Egipt. That will fit in broad daylight for both of the places. Japan is a different story. But Egipt? Come on!

[@MrBrain4]

Plus, the method of determining the angle difference between the two sites (comparing just the longitude) is not dependable. If you take two points each 10m from the north pole in opposite directions, their longitudes differ by 180 degrees, but this of course does not prove that both points cannot see daylight simultaneously.

[@EwanMarshall]

Indeed, I calculated Sol rise set Ephemeris for those locations: June 21st 2017, all times are UTC Giza Sol: rise : 02:55 transit : 09:57 set : 16:59 Washington, DC Sol: rise : 09:43 transit : 17:09 set : 00:35 So the morning daylight of Washington DC corresponds to the afternoon daylight of Giza. Only 18 minutes difference between Washington sunrise and Giza transit (when sun is overhead)

[@EwanMarshall]

+MrBrain4 which is why I have calculated for Summer Solstice, not Winter Solstice. Now there may be information on what day of the year it is supposed to be in the movie (newspaper or somethng?), but I don't remember such.

[@BertGrink]

At 0:35 Matt states that it's the MIDDLE OF THE DAY in *BOTH* places at THE SAME TIME, which is clearly impossibru!

[@JanickGers0]

Who said that mathematicians are not funny? This is hilarious!

[@brownmsoe]

I was born in September of 1990. Then I graduated high school in spring of 2009. In the U.S., if your birthday falls later in the year, you must wait to enter school. The cutoff is different for different regions. Though, August is usually used.

[@matthewaustin233]

Why does this show not have more episodes?

[@OwenPrescott]

The same reason XFactor is a global brand.

[@Peter_1986]

He probably just forgot about it and started doing other things.

[@sethgrasse9082]

I love how Matt's accent turns Vanilla Ice into Vanilla Rice.

[@antivanti]

Vanilla Rice is my favorite hip hop superstar =P

[@DanDart]

it's easier to say than copious glottal stops

[@Leistria]

"19 is too old for school" ... where is it set?

[@Pining_for_the_fjords]

What about in Groundhog Day where Bill Murray wakes up at 6am every day (2nd of February) and it's light outside, even though sunrise would be over an hour later?

[@DanDart]

what if he's in a region that wouldn't be?

[@Pining_for_the_fjords]

Kathie Dart According to timeanddate.com, sunrise in Punxsutawney on the 2nd of February is at 7:25am, over an hour later.

[@Blackmark52]

The first critique nagged at me so I did some research and it seems to me that he and his daylight expert are wrong (and apparently there is reason to believe their is some collusion between the two ; ) It obviously can't be mid day in both places at once, but the question was : is it possible to be daylight at the same time. July 9 2016. : Cairo sunset 19:00, D.C. Sunrise 5:50. Since Cairo is 7 hours ahead of D.C., leaving D.C. anytime before noon would put them in Cairo before sunset. That's a six hour window.

[@brachypelmasmith]

+Blackmark52 that is correct. 90 or so degrees of difference is a lot, and it obviously won't be noon in both places, but it can absolutely be sunlight in both places

[@Blackmark52]

+brachypelmasmith Matt's mistake was to only consider longitude in the calculation between DC and Cairo. I haven't done the research, but would be willing to bet that that six hour window pretty well closes up in winter.

[@Leistria]

360/24=15 108.5/15= 7.23 (only 3 recuring) Therefore if it is lets say 6pm in Egypt(18:00) then it would be 10:46 in Washington DC.

[@Leistria]

Exactly.

[@JVerschueren]

Ehm, no, it's perfectly feasable for 19 or 20-year-olds to be sophomores in high school. She could have flunked a year, switched to an incompatible curriculum (hence having to go back a year to catch up on skill based subjects)) or been an exchange student for a year, as happened to a classmate of mine. He went to the US for a year where they placed him with students his age. Unfortunately the curriculum in the US (except for English, obviously) was miles behind what we were doing, so, when he came back he had learned nothing new. He tried to catch up, but, in the first trimester, it was painfully obvious he'd dropped too far back, so he had to go back a year, thus graduating at 19.

[@Peter_1986]

+Jan Verschueren In Sweden we quit high school (well, the Swedish equivalent to a high school at least) when we are around 19 years. When I was in high school some of the students were even one year older than the others, so they were about 20 when they graduated.

[@brandonfolts1368]

+Jan Verschueren And we take this a step further yet... Keep in mind I haven't seen the movie, but best case scenario- Conceived December 1989, born September 1990, so entering school the latest in their class in standard scenarios, graduating at 18 years old in May/June of... wait for it... 2009. Yes, while someone will turn the age (current year - birth year), until their birthday, they are in fact one year younger than that. So in this case 2009 - 1990 actually means 18 before their birthday, a reasonable and expected age to graduate.

[@wepped482]

Egypt is UTC+2 Washington DC UTC-5.. Closest you can get is 8:30 am Washington DC and 3:30 pm Egypt.

[@ilsaltimbanqui]

I think that as well. It can be day on both cities at the same time. I haven't watched the film but maybe the robots' shadows are in the same angle, thus making a mistake.

[@ehurtley]

Maybe the angle is in opposite directions? DC has the shadow from an Eastward sun, Egypt has a Westward sun?

[@darthtorus9341]

STAR WARS. The idiotic line "I made the Kessel Run in less than 12 parsecs" annoys me to no end.

[@sabriath]

+Darth Torus ...we were never told exactly what the Kessel Run entails. There's a possibility that, because of it being in space, it might be a harrowing flight through an asteroid belt in the shortest distance....not time. The shortest distance would be a skill in the ability to maneuver at closest approaches to objects as they move in real time. It could also mean the distance to a blackhole and firing up engines without being "sucked in" if the "Kessel Black hole" were big...which is more plausible considering the context of the statement was based on the ability to do just that.

[@Sam-cv6un]

+Darth Torus Before Disney eliminated all the Expanded Universe I'm fairly certain the explanation was that the Kessel Run could be done using multiple routes but the shorter routes were far more dangerous and required faster ships because there were massive gravity wells dotted all along the more direct approach. So by saying the Falcon could do the Kessel Run in less than 12 parsecs, Han is boasting that his ship is so fast it can dodge between black holes and other spatial anomalies in a pinch. (Which is a pretty cool boast if you ask me.)

[@Dagobah359]

+Darth Torus I believe +Sam is right. The explanation being that the "speed" of the ship referring to how accurate it's FTL navicomputer was. Less accurate navicomputers required several shorter jumps (zizzing and zagging up more distance), whereas the Millennium Falcon's very accurate navicomputer allowed it to take fewer longer jumps (more in a straight line).

[@kanecobe]

+Darth Torus the idea of the run is to do it in as little distance as you can and not get caught doing it by the authorities not the shortest time.

[@minewarz]

We'll (hopefully) see in the Han Solo anthology in 2018

[@janpokorny9710]

I always meassure the time of countdowning, last time one minute was 66 seconds long.

[@BertGrink]

PLEASE *PLEASE* *_PLEASE_* make more of these movies.

[@uwilly23]

Obviously we are suppose to assume space mirrors, we the audience are suppose to fill in the details, if you don't see a character open a door to get from one room to another, we don't say "oh thats not possible, people can not pass through solid doors" we infrt he opened the door and then closed it behind him, well in that same vein we are suppose to infer space mirrors. Now people not saying goodbye on phones in movies, thats something that requires an explanation, are we suppose to assume all movies are about rude people, I could perhaps accept that in science fiction movies, they are parallel worlds where everybody is rude, or perhaps its a cultural difference, and there is no expectation to say goodbye on the phone, though they then should provide some clues to that, like maybe have someone say goodbye on the phone and then the person on the other end gets all confused says what are you talking about, we don't say good by on phones every since the passing of law X23 or the great phone incident of 2025 or whatever, and then the audience can then be allowed a little more into that world, it just basic science fiction world building that all science fiction writers should be aware of.

[@cptmc]

battlestar from the 2003 series did the daylight error in the last episode.

[@sIightIybored]

the pyramids are in the slightly more of the eastern section of egypt it could be 0.4 east of the reference point in that country.

[@smu4242]

That interview was hilarious :D

[@philipplowman8609]

Clearly the best Maths movie ever, Daren Aronofsky's "Pi", needs to be examined.

[@sprezzaturarrd]

Maybe I missed the point on the 'Transformer" movie review but Egypt is only 7 hours ahead of DC. Both places can be in daylight!

[@StuziCamis]

Can we get more of this please? I love it!

[@inside91]

Are you still doing this show? Pi and Cube are my favourite maths movies! :)

[@jasdeepsinghgrover2470]

Though it cannot be bright day in Egypt and US at the same time... there is still a factor we didn't consider... the axis of the earth is inclined to the elliptical path... so I guess that would generate an apparent angle maybe around 95(not sure)... so even if both don't have bright day time.. they may have something like late morning and early evening.... again it depends on the season aswell...(didn't workout the exact math but the inclination seems to have a non negligible effect)

[@jasdeepsinghgrover2470]

really sorry!... apparent angles are greater than real angles in this case

[@Cobalt-Jester]

There's loads of movies that ignore timezones. The Marvel movies are always doing it. Even the new Endgame movie ignores timezones and has it daylight everywhere at once.

[@ehaslage]

If it is 9:00 am in Washington, it is 3:00 pm in Egypt. Plausible to have the sun up in both places.

[@FlyingButterHorse]

Not around mid-day though.

[@13yroldgosu-gosu-sin24]

Late comment, but what about summer? Daylight hours are longer

[@natheniel]

1:29 the queen's voice suddenly took over for a second

[@fablungo]

Matt... That's a disgrace! Did you just write the -1990 > 1989? No negative number is greater than a positive. That's just basic...

[@rdh.musics]

Fabrizio Lungo no, he didn't. He said 1990 > 1989

[@EnderofGames]

*whoosh*

[@NikolaiSinkov]

Who's "Vanilla Rice"?

[@Armuotas]

In fact they would end up laying on the ground having their legs up at about 18 deg.

[@daisyhinojosa23]

That mistake is in 17 Again is untrue: In 1989, Scarlett is pregnant with Maggie, yet in the present-day scenes Maggie is only 17. Although the movie was released in 2009, if you pay attention in the scene where the students are sending the video of the fight to each other, one of the cell phones clearly shows a date of 2007 for the movie setting. We all make mistakes. No problem.

[@АндрейБеньковский-ш5к]

Apparently in the universe of the movie Arthur and the Invisibles 3 days = 48 hours.

[@ZipplyZane]

The Transformers one doesn't make sense to me. 108 is less than 180, so it's less than half the planet. And half of the planet can be in daylight at the same time. There are 24 hours in a day, and 360 degrees in longitude. That means each hour covers 360/24 = 15 degrees. 108/15 = 7.2, so they are only 7 hours off. But we have 12 hours of daylight. Even if you chop off one hour on each side as dusk and dawn, you still have 10 hours of direct sunlight. So as long as the D.C. part takes place between 7 and 11 AM, the Egypt part will be between 2 2 and 5 PM. Hence, there is still direct sunlight. I would probably assume closer to 11 AM. Fortunately, being in a desert, the sun seems brighter. It all works perfectly fine. It's still daylight in Egypt *right now*.

[@stevenspencer306]

Last, I will give an example of when the movie could be right. During the longest days of the year in the two cities the Sun is out for about 14 hours. The two cities are only 7 time zones apart. DC at -5(-4 for DST) and Cairo on the east side of +2. At 10am in DC it would look like midday. At the same time in Cairo it would only be 4pm and also look looks midday.

[@biogoo]

I dont know how it is in the USA, but I finished the czech equivalent of a high-school in the age of 19 along with several of my class-mates. Nothing special (no repeated years or anything).

[@agmessier]

vanilla rice? Who's that?

[@sabriath]

+agmessier It's a British thing...there was a professor who tried to explain it but I didn't really get it myself, he said "when you change from one position of your mouth to say a certain syllable to another position for the next syllable, there's a brief moment where the mouth moves through the "R" position while still exhaling"....this makes no sense for American speech because we don't relax our tongues like the British do (we over-enunciate or we slur...they just add a letter instead without realizing it to separate the syllables). So in this example....Vanilla and Ice....the "a" sound to the "i" sound, Americans would just go up with the roofs of their mouths, but British feel they need to "start over" when doing a new word, so their mouth goes inward and then back up....very weird, but at the same time elegant.

[@Baker_7498]

+Robert Caldwell (sabriath) But Matt Parker isn't British.

[@sabriath]

Justin Grainger And? Maybe he does what the British do with the R roll, it was described as a British thing in the video I described.....I never stated he was a Brit. It's like going to a Mozart concert and saying "I like Beethoven"....and then you respond with "But this is Mozart"....so?

[@JimCullen]

+Baker7498Army Australians do the same thing. I believe it's known as an "intrusive r".

[@RezaReza22]

Haha! Love the part where Matt refers to the generic school girl as Jen!

[@davidwuhrer6704]

So: Michael Bay is a flat-earther?

[@jeffreylebowski4927]

In general the sun illuminates half the earth-sphere - thats 180 degrees, if its summer on a hemisphere it will be even more, so if washington and egypt are only 108 degree apart, should be easy to have day in both places.

[@djsyntic]

You've made a mistake with the Transformer's movie. See what you failed to understand is that when you Teleport in the movie universe, you actually briefly phase yourself out of existence and then move the entire Earth as needs be so you are now in the correct position. You then just phase back into existence. So it's not that Washington and Egypt were daylight at the same time, it's that the Teleportation caused Washington to be plunged into darkness and Egypt to suddenly become day time. Because this is the movie universe, people tend to be used to day time and night time shifting rather suddenly. They all simply responded with 'Oh it's day time now, I guess I need to go about doing my day time activities.' or 'Oh it's night now, I guess I should be going to bed.'

[@TristanBomber]

+DJ Syntic Ah. All is well, then.

[@yxlxfxf]

That's even worse.If the Earth actually rotated so fast for 108 degrees,imagine what the sudden acceleration would have done,cities destroyed and millions dead.Their scenarists must be good at physics.

[@stevenspencer306]

Without watching the movie again and trying to get a more accurate time reading for the two locations. I can't say they didn't make a mistake. But your criticism is certainly flawed. One since the cities are on a sphere and both north of the equator, the angular (great circle) distance between them is smaller than the longitudinal distance between them.

[@flikkie72]

I didn't know there's a rapper out there going by vanilla rice, must be one of them underground ones

[@CHSidChou]

what about the movie "The Number 23" its also a prime

[@stevenspencer306]

Second, the Sun shines on half the Earth at a time. So to conclude that the Sun could not be shining in both places they would have to be 180 degrees apart. Now if we assume we could recognized dusk or dawn when the Sun was below 30 degrees in the sky. Two cities only have to be less than 120 degrees apart to appear midday at the same time. Cairo and DC fall in this range.

[@kelemvor3333]

Should watch the show Scorpion. You'd have a field day with that...

[@aman-qj5sx]

What if it's Summer? Then it can be daylight in both.

[@dax2be]

I know that I'm about 7.5 years late, however it should be noted that 19 is a perfectly plausible age to be in the last year of school in America. True, it doesn't suit the film's narrative, but it's still a fact.

[@danieltrevi]

Vanilla Rice? You said "Vaniller Ice."

[@sprezzaturarrd]

Never mind. Your point was 'mid day' not 'daylight'

[@Chominus]

Teleportation might take some time. Jet fire could have taken a while to get to egypt and ended up there the next morning

[@komodosp]

Couldn't the daughter have stayed back a couple of years, or left school and came back to finish? There was a 20 year old in my year at one point...

[@DrDaveAllcock]

That's irrelevant. Matt refers specifically to DC and Egypt, gives degrees of longitude for each, and then wrongly says that the angular difference between the two is 108.5.

[@treyquattro]

awww, hairy Matt. Now he has a Parker 'Fro...

[@gregg4]

That's all that's wrong with the movie transformers? LOL

[@soup0dragon]

@helenschlegel 1. That's not how you spell "generic." 2. It's meant to be a joke.

[@Sir_Budginton]

4:02 there is no such thing as enough maths!!!!

[@orsettomorbido]

'No.' HAHAHAHAHAHAHAHA

[@weckar]

I was 19 in high school...

[@coolghoul9]

Who the hell is vanilla rice

[@BunnyRaptor]

-1990>1989 according to that lol

[@iLLixer]

"no!"

[@DarthSivius]

It's not really a math problem, is it...?

[@helenschlegel]

dear maths in the movies, i reckon that if the mistakes in 17 again bother you then you were watching it wrong, from a jeneric maths education researcher

[@sagov9]

When someone is born in 1990, that person would be 18 at the start of 2009. Come on Matt, I expect better from you.

[@Jim73]

vanilla rice?

[@TheBenparker]

Genius!

[@DrDaveAllcock]

Tut tut. If Washington DC is at 77.1 (W) degrees of Longitude and Egypt is at 31.1 (E) degrees of Longitude as stated by Matt, then the angular difference between the two is (drum roll) 77.1 + 31.1 = 108.2. Not 108.5. Really Matt, If you're going to be a pedant about maths in the movies (and I think you should be) then it would help immensely if your own clips are correct!

[@tomasxfranco]

It sounds like Vanilla Rice

[@roseapple73]

nice! :)

[@aldo_mores]

1:55 ROFL

[@ze_rubenator]

I'm offended. Vanilla Ice made Play That Funky Music? Get the fuck outta here. And Ice Ice Baby is just ripping of Under Pressure.

[@wesofx8148]

Ah I see now

[@ally20]

Chalk on chalk board sound. Nonononoononononoononono. My ears!

[@alexanderwestphal9777]

vanillerice

[@alexanderwestphal9777]

+Alexander Westphal bahstad*

[@egalomon]

3:23

[@alandouglas2789]

I panicked for a second there when you said 'Lucy green', I thought you were talking about that bimbo feminist on KZbin

[@mrembeh1848]

sun lighting the earth ? Not maths. Physics!