What's the Shortest International Border in the World?
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- čas přidán 12. 12. 2018
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Music by Epidemic Sound
A dude actually left a one star Google review of an international border.
number 15
@@tetoterritory burger king foot lettæce
I would do the same. Understandable.
@@calkingarg8084 But the's a small text under it saying that this particular review is real 1:55
@@tetoterritory Big smoke is really proud of you ☺
when a kid from Netherlands said his next door neighbor came from the different country, he's not lying.
There was literally a store that closed half of their floor during the lockdown because coronavirus rules in Belgium were stricter. Not a joke, but somehow it is 😂
@@geertbeerens826 poor store, it also had to pay taxes on both countries
@@thibio_x lmao
@@thibio_x lmao
@@geertbeerens826 source ?
As a Zimbabwean, I am very happy because of this mention
Hey how much did your phone or whatever you bought cost in zimbabuaian dollars
@@saadhehe4363 so funny hahaha
Zambian here. Happy too
@@Kazavop we were mentioned in the lactose intolerant video too lol.
*Rhodesian
Spain: "Hey Britain, you need to return Gibraltar to us."
Morocco: "Ahem!"
Ceuta and Melilla are old cities that exists since before the scramble of Africa. It was never part of Morocco, and was given for Spain in the recovering of idenpendence by Portugal, that did give Ceuta and Melilla as a payment for the independence from iberian union.
@Pronto, I didn’t know that Morocco could talk like a human. How do you do that?!
How do you make countries speak like humans? Show me how, please...
@@lydiahatyutyan3579 omg shut up
@@cranberryjuice1005 Dude, telling someone to shut up is kinda disrespectful, you know?
How many Toyotas can we fit in that border?
Correction, how many Toyotas can we Terminate on the border.
Finally someone is asking the important questions
Well a 2015 Toyota Hilux Crew Cab Variant is listed by Wikipedia as being 5335mm (or 5.335m) long. The border is listed as being 85m long. Therefore we could fit approximately 16 Toyota Hilux's parked end to end in the border
@@ToyotaPrius-km9lb none. Toyota's are indestructible.
How many Toyota _COROLAS_
The Spanish are playing king of the rock
Run Dmc baby
And losing.
Not in gibraltar
@@moulayismail1546 im from gibraltar and Brexit is gonna f us up
Edit: i live in gib but im from melilla which both are in this video
So the Spanish do this and they want Gibralta back ???
those belgian villages in the Netherlands be like:
🇳🇱🇳🇱🇳🇱🇳🇱🇳🇱
🇳🇱 🇧🇪 🇧🇪 🇳🇱
🇳🇱 👄 🇳🇱
🇳🇱🇳🇱🇳🇱🇳🇱🇳🇱
I love everything about this comment
I’m dutch
@@Smartfella6969 good for you i'm so proud
Buruj Ansari ikr
@@Smartfella6969 I'm belgi- just kidding i'm asian
4:30 area of a circle is calculated as pi times the radious ^2, so if the radius of the blue area is 1 unit, the radious of the green one is 3
If we define a new area unit that is the radius of blue squared times pi, then the total blue area is 3, and the total green area is 6 (9 - 3). Twice as big
NERDDDDDDDD
@@Painallity how the fuck is this recent comment on a 1-year old video getting any attention anyway also litterally just doing what i am told
@@defensivekobra3873 lol
@@defensivekobra3873 koba
Nice 👍🏿
Could you use bananas for scale? I kept getting confused about the scale
Bananas are all slightly different sizes, so yes they should have done that it's perfect for measuring
@KDS Those are too small, Bananas would be better, closer to grass
No, at HAI we use airplanes as distance units.
Is this a Dathings1 "Wow It's Made" joke, or was that joke not original with him?
Troy Van dude, that’s Wendover
*whips out a notepad and a pencil* The green shaded area is 2 times bigger than the blue shaded area
True that!
Is it? It doesn't even pass the eye test. So if the large half-circle radius (R) is 12cm, it's surface area is:
Rπ² / 2
= 144 * π / 2 cm²
= 72 π cm²
For smaller shapes, we have 3 half-circles, where the radius (r) is 3 times smaller than the large radius (R). So we have:
3 x (R / 3)² π / 2
= 3 x (12cm / 3)² π / 2
= 3 x 4² π / 2 cm²
= 3 x 16 π / 2 cm²
= 48 π / 2 cm²
= 24 π cm²
So that surface is 3 times smaller than the large half-circle
@@Formula7Driver You forgot a vital step; subtracting the surface area of the three blue half-circles from the larger green half-circle.
So, if we are following what you are doing above: 72 π cm² - 24 π cm² = 48 π cm². Thus making it two times as big.
@@ElectricCueball green is below the blue, but it's there
@@Formula7Driver That isn't stated in the question... If you read the question literally, then the blue area would not be included as part of the green area.
4:31
Assumptions:
1. The compositions of both the blue and green areas form half of a perfect circle
2. Each blue area is half of a perfect circle
3. All blue areas are equal in radius
4. The sum of the blue diameters is equal to the total half circle diameter composed of both the green and blue areas
Solution:
DFN: D - The diameter of one blue circle
DFN: R - The Radius of 1 blue circle
2R = D
-----------------------------------------------------------------------------------
The Area of one blue circle:
A_b = (pi*R^2)/2
The Net Area of the blue sections:
(By Assumption no. 3) A_b-net = (3/2)pi R^2
-----------------------------------------------------------------------------------
The Area of the green/blue section:
(By Assumption no. 4) A_b/g = [pi (3D/2)^2]/2
(D/2 = R -> A_b/g = pi(3R)^2)/2
IE the area of the total composition is half of the area of a circle, whose radius is defined as half of the total diameter composition (defined as D from each blue section, which there are 3 of).
Specifically:
A_b/g = ([9D^2]/4)(pi/2)
OR
A_b/g = pi (9R^2)/2
-----------------------------------------------------------------------------------
Area of the green and blue composite area: 9pi R^2/2
Area of blue area: 3pi R^2/2
Difference between the green and blue area:
A_comp = [9-3] pi R^2/2
A_comp = 6pi R^2/2
A_comp is the area of the green section (we removed the blue areas from the total composite area)
6pi R^2/2 = 2 x 3pi R^2/2
IE
The area of the green section is defined as being twice the area of the total blue section.
The area of the green section is 2 times greater than that of the blue section.
Dumb it down for me
Why did you do that?
i got the same answer. i am not gonna read a comment this long but it took me lot less writing to solve it😂
I got the same answer. My strategy? I guessed
simpler solution
area of a circle πr².
area of a circle ¹/₂πr²
area of 3 half circles 1 ¹/₂(πr²)
Blue area (assuming radius of each circle is 1)
1 ¹/₂(π1²) ---- the three comes from having three circles.
1 ¹/₂(π1)
1 ¹/₂π ---- the are of the blue circle
area of the of the larger half circle. (note, radius is 3 times longer)
¹/₂(πr²)
¹/₂(π3²)
¹/₂(π9)
4¹/₂π
area of the green circle is the area of the larger circle minus the area of the blue area
4¹/₂π - 1 ¹/₂π = 3π
then to get the answer of how many times you multiple the blue area to get the green are, you need to divide the green area by the blue area
3π÷1¹/₂π=2
so the answer is the green area is twice the size of the blue area
3:03 love the Bill Wurtz influence
*No planes?!*
*_Wendover Productions has left the chat_*
_Bob McCoy | that helipad is damn close though
Normie
You need a plane to fly to each of these destinations respectively. BOOM
He did talked about helicopter in the end though. Does that count?
Swiss001
You and Wendover Productions should do a collaboration :)
Idk. That guy seems like a nerd
😂
They are the same person.
@@shreeyashpandey3530 i dont believe you
@@halfasinteresting Whoa! thanks for replying ✌🏼
Did you know that since 1986, France and Great Britain share a common terrestrial border which is located in the Tunnel that links the 2 countries. I think that's no longer than 40 meters .. that could be even shorter than the one you mentioned in your video !
In Spain we also have Llivia, a small city in middle of France. Time ago, Spain had a portion of south France called Rosellon , and It was part of Aragon ( now Catalonia ) . When Napoleón ruled Spain, they tooked that territory, except Llivia, because It was a small village and France just avoid them . I thought that was one of the smallest borders in the world, but somehow Spain just kept that anyways lmao
"Tooked"
Tenemos las que Llivia en comun, vecino del Sur, del otro lado del Pireneo encontraras la isla Kompanzia, que administramos 6 meses por Francia y seis por España cada año 😃
Llívia was always part of Catalonia. Catalonia was a territory of the Crown of Aragon (royal family), not part of Aragon (kingdom, territory)
Roussillon aka North Catalonia was ceded by Spain to France in 1659 with the treaty of Pyrenees, under King Louis XIV, so MUCH EARLIER than Napoleon.
I bless the rains 0:57
:D one for you: ibless.therains.downin.africa try that in your browser and have fun.
@@rivenoak best website, made me cry
The most wholesome comment strip I have ever seen, thank you.
"As sure as Kilimanjaro rises like Olympus above the Serengeti" artistic license, geographically impossible unless you're 8 miles high...
This man bought a domain for some stranger on the internet
Canada and mexico
Its 0 miles accros
It's short because it doesn't exist is what you are saying, it appears.
Andy Madden *w o o o o s h*
@@alfredli5187 its not funny, though
What is the longest border in the world? Oh I know the ocean and Asia Europe and africa
I was going along with the joke, not explaining it.
3:34
We're all connected-if you remove enough water
I did the math in my head for the circle problem. It took longer than I think I should have, and it has been a long day, so if it’s wrong, forgive me. The green area is two times the size of the blue area. To put it in the terms used in the question, it is one time larger, but the usage of “times larger” sometimes seems to vary between referring to the difference when one is subtracted from the other or to the number of times the smaller will fit into the larger, which is why I’ve described it in two different ways.
Oh. I did it in paper and got pie1.5radius of smaller circle squared greater than the blue area. But im in 8th grade and was not taught this yet but i do know geometry pretty well. I think this is rather far above my level so points for that?
Yes the green area is twice (or 2 times) as large as the blue. I got 3 times at first but I was forgetting to subtract the blue area from the green.
It's actually 3 times (edit: it's not, @5135TheEm's comment above shows my mistake). 3 blue diameters are equal to one green diameter. Which means R=3r where R is green diameter and r is blue diameter.
Green area = πR²/2 = 9πr²/2
Blue area = 3×πr²/2 [as there are 3 semicircles]
Thus green area is 3 times the blue area
@dimple singh you’re forgetting to subtract the blue area from the green.
@@pennybuttercup902 my bad, you were right, I hurriedly replied without reading the other replies or thinking more carefully
Geography Now mentioned this yesterday in his Morocco Video.
TowerGuy I watched that
Nobody owns the facts
ha! I thought I had something in my brain like this, recently lol.
Also, no one's accusing H.a.I. of "stealing" facts, other guy.
Aren't you impressed that I made this video in just 24 hours!
(Hint: I didn't just make this video in 24 hours.)
sub to PewDiePie for original content or else i`ll take ur dog
3:02
Almost there.
Oh wait, Spain, you forgot a bit.
Spain?
Spain, what about these bits?
*_S P A I N ?_*
wow u watched the video too?
MikePlays
i mean
@@MikePlaysYeet Bet you are fun at parties.
@@literallyabowlofcereal2559 Bet you are fun at breakfast.
@@plumeater1 I am.
Hey Sam, good job on this!! Even if a few few details were a bit of, you clearly put in a lot of effort to understand a complicated topic, and I appreciate you.
4:26 The green area is a semicircle that is geometrically similar to the three blue semicircles. The diameter of the green area is three times that of each of the blue shapes. Multiplying the dimensions by 3 means multiplying the area by the square of 3, which is 9, so the green semicircle would be nine times the size of one blue semicircle. However, the blue semicircles are subtracted from the green area, and nine blue areas minus three blue areas means that the green area has the area of six of the blue semicircles. However, the total blue area is comprised of three blue semicircles, meaning that the ratio between green area and blue area is 6 : 3. This simplifies to 2 : 1, which is our final answer.
This is a neat way of going about that problem. I just used algebra.
that's incorrect
@@_Pixie_10 Why?
@@baltasargutierrez5366 He misses the fact that green area isn't a semicircle, because it lacks the space that is blue
2:58 You're turning in to Bill Wurtz here.
"In two-thousand NOW"
I'm stealing that
Ceuta and Melilla were Spanish cities almost 300 years before the colonization of africa xd
nah it's moroccan since 931
@@Ak-gb4ms it will never be morroccan
@@comandantepepperoni8104 in 931 Ceuta domanited by the Andalus till 1415 she fall under the control of Portugal, at the hands of King João I. In 1580, Spain annexed Portugal to its kingdom, after the death of King Sebastian I of Portugal.
1640: Portugal declares its independence from Spain, but the inhabitants of Ceuta prefer to remain under Spanish sovereignty
@@Ak-gb4ms IT'S MINE, NOW
@@comandantepepperoni8104 it's ours....
Good funny, non arrogant, non boring, narration that sells an already interesting subject
Me:Mom I am going for a walk
Mom:OK,but do not go to other countries
Me who lives in that Belgium Dutch city thing:
You can literally walk in parts of Germany for 5 minutes and cross 5 borders 😂
@@panos1b where are you able to do so? I'm personally not aware of any such place in Germany. If you count the single states of Germany, you could max reach 3 different States within 5 minutes. If you count other Nations and German States, you could in theory cross 4, but the only location I'm aware of where that is possible is in the middle of Lake Constance. So one would have to be able to walk on water or walk on a boat in order to do so.
Perhaps I simply wasn't aware that such a place exists inside Germany tho. If it's not about different borders, but you also count crossing a border with the same nation twice as long as it's at a different location, then you could do so with the German-Belgian border.
It actually used to be the case that you could pass through borders in Germany so fast, but that was in the Holy Roman Empire and the German Confederation...
I could take a short 1 hour walk and end up in Germany from where I live, tbh.
A German exchange student made a photo slideshow about living a non-controlled border with France.
“Were only half way through the video”
Me: * checks video *
Also me: *oh sht u right*
Shit
Me too
ofc hes right he makes the videos
I was like whut
I was trying to leaves that time since that is my only interest
since the UK and France share a land border because of the channel tunnel wouldnt that be the shortest international border?
No because its a shared tunnel. Let’s say a country builds half side of one tunnel and another builds the other half then it’s possible but both countries helped each other build it which makes the border outside of the tunnel instead of going through the channel. It’s also important to keep in mine of actual land borders than underground sea borders
That's not a "land" border.
4:20
the answer is two times greater
blue radius= r/3 so blue area=1/2(pi(r/3)^2)
green radius=r so green area= 1/2(pi(r)^2)
so then blue=1/9 whole thing
3 blue=1/3 whole thing
if blue is 1/3, green is 2/3
1/3 * 2 = 2/3 therefore the area of green is twice the area of blue
for anyone wondering :) (i was bored so i gave it a shot)
Not as short as the like ratio on CZcams rewind
Not as short as the distance between the number of subscribers between pewdiepie and T-Series
@@abnormaalz but the question is who cares?
Finally, something shorter than my penis!
Abnormaalz Why do people still care about this.
Or the number of employed people who give a shiny sh*t about anything that happens on 4chan. #thereIsaidit
About the riddle in the end:
Each of the small semicircles have an area of πd^2/8 and the the whole shape, green and blue, has an area of π9d^2/8. The small semisircles have a combined area of 3πd^2/8. By subtracting the combined area of the shape with the area of the semicircles we get an area of 6πd^2/8 witch is the green one.
So the green area is 2 times larger than the blue one.
its not a riddle bitch , its a problem
and they are exactly the same size since the green area covered by blue is not green anymore
Mark no because big: ((3r)^2)pi/2 while small: 3((r^2)pi)/2 therefore big = 1.5(pi)(r^2) and small = 4.5(pi)(r^2) so green is three times bigger
My head hurts.
@@Axolotls_out The "big" area that you are mentioning is the area of the whole shape (green and blue) and not only the green area.
The underground border between France and the UK in the Channel tunnel is even shorter: 7.6m + 4.8m + 7.6m = 20m (inner diameter of the two train tunnels and the service tunnel).
While that does appear to be the shortest land border, the entire GB/France border stretches from the Atlantic, the length of the channel, into the North Sea, and this video is including underwater borders.
@@asterix811 Well, this vid takes only one point of the land border between Marocco and Spain, while there are other ones (Ceuta and Melilla) and they don't count sea borders.
Anyway, it's just an interesting fact about an useless thing...
Let us assume the diameter of the green circle is 3cm. This is arbitrary, but it does help us solve this problem. To find how much bigger the green area is compared to the blue, we have to find the area of the bigger half-circle and subtract away the three smaller blue half circles. ((3/2)^2 x 3.14) = 7.065. Now because it is a half-circle, we divide it by two. This means the larger half-circle area is 3.5325cm2. now, we need to calculate the area of the three smaller circles. Since the diameter of the larger circle is 3cm, and there are 3 smaller circles, each diameter of the smaller circle is 1cm. area of one smaller half-circle: ((1/2)^2 x 3.14)/2 = 0.3925. Each blue half-circle is 0.3925cm2. because there are 3 half circles, we multiply that area by 3. 0.3925 x 3 = 1.1775cm2. because these smaller semicircles are taking up the larger semicircle's area, we subtract the area of the smaller semi-circle from the larger one. 3.5325 - 1.1775 = 2.335
What we have now is the area of both colors. Green has an area of 2.335cm2 and blue has an area of 1.1775cm2. to find how much bigger the green is compared to the blue, we can turn these numbers into a percentage. (1.1775/2.335) x 100 is 50. We can conclude blue is 50 percent of the Green's area, therefore, green's area is 2 times bigger than blue's area.
Final answer: Green is 2 times the size of Blue.
1:59
Half As Interesting: Which will be done by 2019
Me: I guess it'll be done this year, since this year is 2019!
Not Wendover Productions lol
When you see on google maps...they're making good progress
ME4
r/unexpectedfactorial
Maybe
As spaniard myself, i know a bit of the history of those exclaves. They were part of the iberian kingdoms since the middle ages, even before Morocco exist. Spain conquered them in order to stop pirates raids in the iberian costs. I am not telling you what to think about if Spain should retain them or not, just telling their history, Spain didn't conquer them in the XIX century as is told in this video. Peace.
Interesting view. Some people would intend that the Idrisids were the first to rule Kingdom of Morocco in 8th century and therefore contend that Ceuta was Moroccan before The county of Castile even existed. But again if you go even before that Ceuta was part of Visigothic Hispania, whose count Julian was responsible for it’s conquest by the Umayyad caliphate. The world is a cat and mouse game, sometimes your the cat but you could also be the mouse, just watch out.
As half moroccan i can say that i have heard of this and although im just 13 this is mostly true
Before Morocco existed?? Do you have any idea when the Moroccan Kingdom was founded?
@@sphinxfive1331 Morocco has been ruled by many dynasties such as the idrisids, almoravids, marinids and alaouites and likewise spain has been ruled by successive houses from the Visigoths of the 7th century, to trastamaras, habsburgs, and bourbons. Dynasties change but it's the same country.
@@vedicfury9307 you're right , but saying spain ruled these cities before Morocco existed is pure nonsense because the Moroccan Kingdom was founded in 400 B.C
Thank you so much for uploading this video. It is helping me get through the pandemic!
4:29
Say the radii of the smaller (blue) semi-circles are r each. Hence each of their areas are 0.5πr^2. Since there are 3 of them, their total area is 3x0.5πr^2,
or *1.5πr^2.*
Now the radius of the bigger (green+blue) semi-circle is r+r+r, or 3r, and hence the area is 0.5π(3r)^2,
or *4.5πr^2.*
The green area = the area of the bigger semi-circle - the total area of the blue semi-circles
= 4.5πr^2 - 1.5πr^2
= *3πr^2*
Green/blue = *3πr^2 / 1.5πr^2*
= *2*
The green area is twice the size of the blue area.
I got the same answer, but I handled things slightly differently:
I arbitrarily plugged in 12 as the d of the main half circle, making the d of each blue half circle=4, and their respective r=4 and 2.
The area of a circle=(pi)r^2, so a half circle's area = 1/2 (pi)r^2. So,
.The whole half circle's area = .5*6*6*3.14 = 56.52 and the blue half circles' area = .5*4*4*3.14*3 = 18.84
Since the green area = whole area - blue area, the ratio of green area to blue area = (56.52-18.84)/18.84 = 37.68/18.84 =2.
omg where the fuck i ended up-
@@stevendanderson8943 I just used 1 as r of small thingys and ignored the pies from the beginning cuz fuk em.
(3^2)/2 = 4.5
(1^2)/2*3 = 1.5 blue bit
4.5 - 1.5 =3 green bit
Did it in my head while driving cause quick mafs
It’s interesting to see that most people plug in values instead of thinking about proportionality
1:55 one of the coolest review on the Internet
1:55 "Except for this guy"
But there are 5 people gave that review a like, so he's probably not the only one
God knows the amount of research you have to do just for one video, we appreciate it 🥳
Thanks for the informative Video 👍
According to Wikipedia, Märket Island has a shorter border.
Edit: If you look at a map of the island, you can see that the border goes across water, and there is a smaller segment of land border in the south.
deet0109 Oh, hey Deet
It's between Finland and Sweden, their border is 586 km so it's not shorter
@@belzebub6663 well morocco and spain have more border than just that 85m bit.
iraliX But they don't border like Finland and Sweden in one place
Perkele
Your voice sounds almost like Wendover Productions. You two should do a collab or something.
Half as Intresting and Wendover Productions are made by the same person. Though that would be a funny April Fools day prank.
@@williamsledge3151 r/wooosh
William Sledge The joke
Your head
How did I know someone would get wooshed before reading the replies?
@@williamsledge3151 r/wooooosh
For that geometry puzzle, the big circle is exactly thrice the area of the smaller circles combined.
The UK and France have a short border half-way along the Channel Tunnel.
The border is only 18,76 Toyota Carrollas long!
Toyota Christmas Carrolla
@cameron burke r/woooosh
Why the hell do so many people have that profile picture
nate da idiot Oh yeah yeah
Oh yeah yeah
278 ft
let's put this in even MORE American terms. 278 ft is about the length of 9 school buses. it's also around 350 water bottles long. also close to 3/4 of a football (handegg) field
Jmandawgfan This is an American CZcamsr on an American website speaking primarily to an American audience....
@@kalebayana6275 talking about a spanish and moroco frontier
David Ramirez well I’m talking about Britain or whatever so I’m not gonna say bloody after every sentence
@@FBI-real do you know another language than american english?
handegg
And what about the shortest border between a recognised and unrecognised state? My first guess would be the exclave of Kokkina. A tiny bit of Turkish Cypriot controlled territory surrounded by the internationally-recognised Republic of Cyprus and separated from the rest of the self-declared Turkish Cypriot ‘state’ (TRNC).
I know I am 2 years late. I still calculated it anyway. I hope my calculations are correct.
4:26 The answer is: The green area is twice as large as the blue area.
G.A=2 B.A
Yeah that's what I got
how did yo get 2x, i got 3x.
3r^2*pi divided by 2 is the area of the three blue half circels or in other words 3P1, and the same formula is the area of the green half circle or P2, so P2=3P1.
you can even remove the divide by two since the ratio of surfeces is the same regaldles if its a half circle or a full circle
edit: only thing that comes to mind if you remove the blue area from the green, but we dont know if the green area is bellow the blue ones or not, so in that regard both answers are posibly corect
@@termivan We do subtract the blue area from the whole semi-circle. I don't think someone would create a question with 2 answers.
@@termivan The blue areas aren't green. They don't count toward green's area. There's nothing "below" anything, it's just a two dimensional plot of space. If you're going to imply that green extends "under" blue, then it's equally like that blue also extends "under" green. In which case green and blue are both semicircles, which just makes a mockery of the whole concept. So you take Green's area as if it were a semicircle, then subtract blue's area, which gives you a relationship of 2x, as you suggested it could.
@@InterloperBob you are right
Easy come on; radius of the blue ones = r, radius of the green is 3r. Area of a blue one is 0.5*pie*r^2. Area of the green is 0.5* pie*(3r)^2 = 0.5*pie*9r^s. Divide green by blue to get how many times larger green is than one blue, all the 9 cancel so green is 9 times larger. But there’s 3 blues so 9/3 = 3 the green 3 times larger. But it is partly blocked out. So as the blue is 1/3 the size of the whole green- 3 -1/3*3= 2. The Area that is green is 2 times larger than the area that is blue
LeackedImp7 Pi *
N E R D
Well I get the same thing (slightly different working), so hey. 🤓 (Of course that’s assuming there isn’t anything sneaky they’ve done there...)
I did this too:
If we assume the green has a radius of 1, the blue has a radius of 1/3.
The blue area is 3/18π and the green area is 1/2π.
x(3/18)π = (1/2)π
x(3/18) = 1/2
x(6/18) = 1
6/18 = 1/x
1/(6/18) = x = 3
The green is 3 times as big as the blue.
This is assuming that the green area is not (1/2π) - (3/18π) which it might be. If it is, then this is the math:
x(3/18)π = (1/2π) - (3/18π)
x(3/18) = 1/3
x(9/18) = 1
9/18 = 1/x
1/(9/18) = x = 2
The green is 2 times as big as the blue.
wut.
The green area is exactly twice the area of the blue area, and it takes up 2/3 of the total area, leaving the last 1/3 of the area for the blue.
I don't need Brilliant apparently.
Yaakov19 can confirm. Just finished the math.
Brett Daniels r/woooooooosh
@Kenn Honson X Lmaoo
@Kenn Honson X U mom gay
@@booxwee3804 your multiverse gei🙃
0:23 dodging questions right from the start, nice
4:26 assume the diameter of green semicircle is 1. one blue semicircle has a radius of 1/3. pi*radius squared is the area of a circle so we do pi*1/6^2 which is pi/36 and because its a semicircle we divide it by 2 so pi/72. now the green semicircle will have the area of pi*1/2^2 so pi/4 and divide by 2 so pi/8. now we multiply pi/72 by 3 and get pi/24. divide pi/72 by pi/24 but to make it easier we inverse the pi/24 fraction and we get pi/72 * 24/pi. now we shorten this and get 3/1 * 1/1 so 3. so the ratio is 3/1 and the green semicircle is 3 times bigger
The reason the Bridge between Botswana and Zambia Avoids Zimbabwe is because at the initial planning of the bridge Zimbabwe was a part of it but that time it was still ruled by Mugabe who later pulled out of the deal thus forcing both countries to increase their own costs and redesign the project.
And funny enough when Mugabe was overthrown and Zimbabwe's new leader showed interest the project was to far ahead for a redesign.
BTW I am from Botswana.
Plus the reason we need that strip is coz if somehow Namibia Zimbabwe and south Africa closed their Borders over a dispute (some that will never happen only theoretical we would have it as our last option.
fun tip ;That's were the Zambezi river passes but in pur country we call it the Chobe ,yes we had to be extra .
Thank you I hope to get a few likes for my tiny paragraph.
I was always curious - can you tell me why Botswana is richer than most other African countries? Is it just mining?
As far as Wikipedia says, Botswana is as rich as some European Union eastern countries per person, so I'm just wondering.
So Botswana does have a port, access to the ocean, despite being technically landlocked.
@@warsawlloyd4026 concentration of wealth, and a low population 2.1 million people in a country the size of france, . Thing is a lot of people barely make ends meet , not meaning that there are mp peopp who are well of , we have the super rich here mostly other people from other countries . 70% of the working population earn less than. 400 us dollars. And the other 30% are government workers and others.
Thing is the wealth of the government masks the problems it has created, but thou a lot of polices from the government have done good for us. Ask more questions if you like ....
Great explanation -- thank you! I can't wait to see photos of this bridge when it opens.
if aliens ever show up, this will be one line in a long list of why humans are fucking stupid, and probably not worth their time lol.
so, is this a coincidence it coming up one day after Geography Now Morocco? i DO think so
It's time to learn geography.... NOW!!!!
Barbs also mention this border in that episode.....
It takes longer than a day to make Half as Interesting vids, and it came out a day ago.
They talk about the same stuff a lot..
4:30
Answer is 2. Assuming the diameter of the blue circles is 1, the radius of the green circle is 1.5. calculate the area of the green, subtract the area of the blue, divide that number by the area of the blue.
@@oscarpetersson5324 But the green takes space from the blue
twice the size, by congruence.
no diameters or areas to calculate, only proportions.
blue is one unit and there are three of them, green+blue is a unit of length three and there is one of them.
we are dealing with areas, so by squares (for correct area proportion) the answer is (1*3^2 - 3*1^2) / 3*1^2 = (9 - 3) / 3 = 2
therefore twice the area
4:27
Assume the base is 12
Total area = 1/2[π(6²)] = 18π
Blue area = 1/2[3π(2²)] = 6π
Green area = 18π - 6π = 12π
Green is twice as large as blue
Yeah, I was confused with the base.
I got the same answer by using R/3 to represent the green semi circles. Didn't think to sub in a value but cie la vie.
Geography Now just had this on.
Exactly what I thought
I love how this came one day after Geography Now’s Morocco episode. It can’t be a coincidence!! Both of you are awesome :)
4:10 I could imagine some Spanish people playing cards with some Moroccans and one goes to put a card back into the the stack and his hand almost goes over the border and then all the Moroccans aim and then a bunch of the Spaniards start firing.
Answer to the maths question for anyone wondering:
The formula for the area of a circle is πr^2. So for a semicircle, it is πr^2/2.
The radius of the green semicircle is 3x the radius of one of the blue semicircles.
Let's call the radius of one of the blue semicircles 1. So the radius of the green semicircle is 3.
So the area of the full green semicircle is π x 9/2, which is 4.5π.
The area of the 3 blue semicircles combined is three times π x 1/2, which is 1.5π.
So the green area (green semicircle - blue semicircles) is 3π.
Therefore, the green area is 2x the blue area.
found the answer OH YEAH ! so i got answer so i don't need that website
The shortest international border is my room from to the outside world
Can my authoritharian monarchy nation (room) annex yours?
Lmfao
@@eironn__ Sure
@@eironn__ oh wait NVM I'm high it's 4:16 am
@@abbad707 dafuq bro LOL
. . . . *Spain?* . . .
*SPANISH SAHARA IS GONE*
Españita
Green is twice as big as blue in the end. The semicircles could be full circles to make it look more interesting.
The ‘Spain’ bit cracked me up xD
*s p a i n ?*
The masked country, it was trying to nab your prize
Spain did get those places before 1500 AC...
GerackSerack we are from the begginig glory to spain
That's quite a good bill wurtz impression.
Gribaltar Español
Legend has it that HAI is still waiting to hear back from Spain.
Easy! Might be my method rounding but I got that the green area is
3
times larger than the blue area :)
That is assuming the shapes are overlapping and the green is still a semicircle. Subtracting the blue area prior to finding the green to blue area ratio gives us a ratio of
2
times larger.
Please make a video about different brick types and there uses.
2:42
Imagine playing soccer there and then the ball goes on Dutch territory so you get the ball but get arrested
Chinese Mapper they’re both in the eu and you can just freely walk from one country to the other
Ernst F I know, after the comment, I realized that fact and was too indolent to change it
Both of you don’t get the joke
mark young one of the people you are talking about literally made the joke....
@@Alucard-gt1zf Guess you're not getting the joke 😁
84m between spain and morocco #geographynowgang
Refisher #wewantnoah
#RIPKEITH
To answer the question at the end, it’s 2x larger. For simplicity I gave the circumference of each of the blue sections 2 and the whole semicircle six. You then just find the area using the area formula of a semicircle and you get 2*pi for each of the blue semicircles, meaning the total area of the blue is 6*pi. The area of the whole semicircle comes out to 18*pi, but this isn’t the area of the green because we need to subtract the area of the blue from the whole semicircle to find it. 18pi - 6pi is 12pi, so the green area is 2x larger than the blue. Let me know if this doesn’t make sense to anyone, since I’m usually not that great at explaining things :/
Correct. Since the area of a circle is proportional to r^2 then the big semicircle is 3^2 times bigger than the small one, that’s how I thought about it.
It's 2x larger, using a diameter of 2 to represent blue, blue comes out to 3(π/2) and green comes out to π(9/2) including the blue area. So subtract the blue from green to get π3/2 against 3π
Area of green is twice as much as there is of blue, simple algebra and circle knowledge
Close, but the green portion is 3 times larger than the blue one. (3r)^2/3*r^2=3.
Forgot to take out the blue area out of the green area... my bad...
Isn’t it the same bc: 3 1/2 blue circle fits in 1 1/2 green circle green and the radius of the blue is 1/3 of the green? But IDK, I’m just 12
@@real.eo_ radius is three times bigger -> area is 9 times bigger. so if one blue semicircle area is x, three blue is 3x, green semicirle is 9x. 9x-3x=6x 6x is two times larger than 3x. So Benjamin is right.
Kasper Joonatan sorry 7th grade...
Always love these videos!
sub to PewDiePie for original content or else i`ll take ur dog
They're alright
for that puzzle at the end, take the radius of the green half circle. use that radius to find the area of the half circle then divide it by 2 since it’s a half circle. do the same for one of the blue circles then find the area then divide it by 2 and then multiply it by 3 since there’s 3 blue half circles. finally, do this (green half circle area/3 blue half circle area) to get final result. i would solve it myself but i’m too lazy to measure it.
Fun fact: Gibraltar has a neanderthal £1 coin design which is the old version which was one of the coins I have been longing to get. That is how I know Gibraltar.
In Gibraltar, they found the last (most recent) Neanderthals.
@@warb635 That is so interesting!
@@eg4789 Thank you for the offer, but I already have one, sorry!
4:28 Well I see no one answering it here,so the answer is '2 times greater'. [Correct me if you think it's wrong]
One blue half circle is 3*3 = 9 times smaller than the green one. But there are three blues, so 9/3 = 3.
Edit: I forgot to exclude the blue area to the green area. So you substract 1 third and you have two thirds left, which is 2 times one third. So the answer is 2. What silly mistake I made!
@Chopsticks and Noodles It is only 2 times greater, you do not include the blue shaded area when trying to figure the area for the green circle
All of you are wrong. The answer is 1. It's not asking how many times as big. It's asking how many times bigger. That's a percentage change. If the blue has an area of 1, then the green has an area of 2. The correct math would then be (2-1)/1 = 1.
Fight me.
@@barrishautomotive You're actually right! But most people interpret it the wrong way, including me.
@@jordanwarne911 I dont really think of it that way either, but it's an interesting brain bender to break it down to the level.
*The shortest topic:* exists
*HAI:* * Makes a 5 minute video about it *
New shortest bordes. I've made my apartment independent. The thing is that I lived in Madrid so Spain still has the shortest border :)
Since it's an apartment, is the border the walls or the floors? If the latter, the your border is even shorter than you thought.
Question at the end:
We can clearly see that the middle circles are 1/3 of the diameter of the bigger larger circle.
By using the formula " R × R × π" we can calculate the area of any circle and take half of it for calculating half a cricle.
Lets calculate the inner circle first by using any number, i choose 3 for R
( 3 x 3 x 3,14 )/ 2 = 28,26
Now multiple by 3 since we have 3 half cicles
28,26 x 3 = 84,78
Now lets take the outer circle
Since the middle circles diameter is a third of the larger we can conclude that in this case the R would be 9 so:
(9 x 9 x 3,14 )/2 = 254,34
Now lets subtract the area of the inner circles
254,34-84,78=169,56
169,56 is double of 84,78 so the green area is twice as big as the blue area.
You're correct but I think it's nicer to just keep the variables like pi instead of multiplying it out.
That way you get (r×r×pi)/6 for the blue area and (r×r×pi)/2 for the whole thing
from there it's as simple as 1/2 - 1/6 to get the area of the green part which is ((r×r×pi)×2)/6
So ignoring the (r×r×pi), because it's the same for both you get 1/6 for blue and 2/6 for green, obviously meaning green=2×blue
I like this better, because it can be done entirely without the need of rounding the irrational numbers you get, when multiplying with pi
Having to rounf them obviously will always lead to small amounts of inaccuracy, so avoiding it is beneficial
Also I'm to stoopid to multiply with pi in my head and I didn't want to go get a calculator
Have a good day :)
Great video! I enjoyed that sarcastic humour that characterizes your productions. BTW, the L in Melilla is pronounced as the L in “London”, and the same happens with the L in Vélez.
Do you want to make a video on why is it worth it for Brilliant to advertise the same service to the same audience over and over again? Its genuinely an interesting question because 3-4 times on the same channel seems enough for people to acknowledge their existence.
This is a classic problem in advertising. Why does coke run so many ads when it seems almost everyone knows it exists? The answer is pretty simple. Babies.
More specifically, if something is known by everyone, then almost paradoxically the rate of people finding out about it is quite high. It's the birthrate. Every day 12,000 people are born in the US, meaning almost 12,000 people a day are seeing a coke ad for the first time. That's why they keep running ads.
Same is true for brilliant, but in this case the rate of people seeing the ad for the first time is the rate of people finding this channel for the first time.
Tldr as long as people keep finding this channel, or makes sense to keep running the same ads.
Objects in Motion I somewhat understand the implications for Coke. And I feel like a powerful brand image is part of it too. But in case with Brilliant if they get 100k new people finding out about them (which is the main reason for them running these ads according to you) then surely there would be someone who is ready to pay more for 500k of new potential audience.
You would think, but in the end views are not important, subscriptions are. Brilliant keeps running ads on HAI because they have data showing it works. For every channel Brilliant advertises over and over on, there are 10 channels that get 1 ad and no others (I know of a few, they always seem like they don't belong on certain channels). The first time an ad runs is always a risk, its a a trial that rarely breaks even on the ad cost. Advertisers only make money on the repeat ads, which they only run on carriers that pass the trial. Brilliant knows that the new influx of people watching HAI are the type of people who are more likely than average to purchase a subscription. Even if only 10% of the views on this video are new, if on average 5% of HAI views are into Brilliant (0.5% of total views), then they make more than if say a cosmetics company runs an ad and, not surprisingly, only 0.2% of the audience are into makeup.
Thus, while another company might get significantly more exposure by running many first-time ads, its very risky and often only profitable if it helps you find your target audience. After which point it makes sense to focus on the people that are newly joining that audience.
The answer is : they repeat it to make you feel that should be your first option. They engrave it in your minds . Many times companies use catchy rhymy tunes to do the same
@@ObjectsInMotion
Babies shouldn't be watching CZcams!😘
The green bit has double the are of the blue sections
3 times the area
4:28 the green part is 3x greater. The area of the blue circles is (pi(1/6d)^2)/2*3 and the area of the green circle is (pi(1/2d)^2)/2 where d is the diameter. The ds cancel out and area of green circle/area of blue circles = 3.
end riddle
say the blue half circles each have an area of 1
the green half circle is as wide as 3 blue ones
since area scales squarely with circumference, the green half circle is 9 times as big as a blue one
now there are three blue half circles each with an area of 1, the blue area is 3
the green half circle has an area of 9 but the green area has 3 blue half circles removed
so the green area has an area of 6
6 divided by 3 is 2
the green area is twice as big as the blue area
There is a border between France and England in the Channel tunnel which may be shorter that the one presented in the video. It may also be the case for a lot of countries that are linked only by bridges or tunnels such as Danemark and Sweden. Although these borders are in a kind of grey area between terrestrial and maritim borders, technically they are considered as land borders (at least for France and England, it is clearly stated in the article 3 of the treaty pf Canterbury).
Since three small blue circles fit in the one big green circle the diameter of the green is 3 times larger than the blue. Since area of a circle is pi*r^2, and the green radius is 3 times bigger, then it is 3^2 bigger. So green area is 9 times bigger than blue comparing the circles. But since 3 blues are covering up 1 green then 9-3 is 6 for green. So 3 blue and 6 green, which leaves the green area of that image being twice the blue.
The answer for the circle question is the green on is 3 times bigger than the small
"Returning" Ceuta and Melilla... Morocco wasn't a thing when those cities were founded, and as such the UN doesn't see them as colonies (unlike Gibraltar)
You are completely right, this video lacks some research
But the question is: do these cities want to be part of Spain or part of Morocco?
@@NeighborSenpai
Just like almost everyone on Gibraltar wants to be part of the UK, almost all of the population of Ceuta and Melilla wants to be part of Spain
@@nachoolo enough said
Brexit deal - Give Gibraltar to Spain and the #SBA's ( Sovereign Base Areas [of Cyprus] ) to Cyprus
I was expecting something like “this is shorter than the wingspan of two 747s.
I guess not.
If you go to Google maps and really zoom in on satellite mode you can see a small boat right on the border which is mostly in Spain but a tiny little bit in Morocco. Which means that one of these countries invaded the other
That bit at 3:00 reminds me of that one The History of the Entire World video (if you've heard of it, you'll know the one)
Spain?
Spain what about these bits?
*S p a i n*
Something about that Dutch town: in those Belgium bits there are also Dutch bits, so it's a bit of the Netherlands in a bit of Belgium in the Netherlands
The Spain part actually had me laughing out loud
There a little fault the belguim piece that is surrounded by the netherlands is baarle hertog not baarle nassau because thats the the netherlands part of town