Johnny Ball is back talking about Hippocrates, Lunes, and a Fancy Q.
More links & stuff in full description below ↓↓↓
Johnny Ball’s website:
More Johnny on Numberphile:
An earlier Lunes video we did with Barry Mazur:
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Mandelbrot pieces now for sale: https://posh-as-cushions.myshopify.com/products/unique-mandelbrot-piece
But hang on he said, if those 2 plus that…
Unfortunately, Numberphile does not consider it necessary not to delete an obviously incorrect post! The seriousness of this site is no longer given!
it is a shame that such obviously false statements are allowed to be published
This is the kinda stuff I wish I knew while learning math in high school.
I love lunes!
how embarrassing
No drugs
Nothing cringe
Nothing eccentric
Only Number megik ❤😇
this is wahat Harry enfield will look like when he's 80.
It works for a right triangle isoscele but it's not really the same for a off-center right triangle
another universal truth.
x (confused with the multpkication sign)
2 x 2 = 4 or 2.2=4 or 2*2=4 or 2×2=4
anyway
x is a letter used as a variable (named : ix and not times)
like y
2 y 2 = nonsens rommel
so anyway
x / x = 1
and
x (times) x = x^2 (ix square)
you can relplace x (ix) with any desireable number. but you xan not replace * (times) with any desireable number.
x = is variable, a place holder for a number.
like. for example. this bus can contain 72x persons. and then it does not matter wich persons or how many person there truly are in the bus.
so x can be a number in this case between 1 (the driver) and 72. (the maximum passengers)
now you know.
if the dinater of a circle is 1 centimeter then the outline of a circle is 3.14 cebtineter long. a fixed ratio. since the outline is x too the power of two and y too the power of two on the graph from one flat line. is also combined 3.14
so
x2+y2=3.14
so
x2=3.14 ÷ 2 = 1.07
y2=3.14 ÷ 2 = 1.07
then square root of x2 is x
so
1.07 square root = 0.33 almost from.x
plus 1.07 square root = 0.33 almost from y
means the diameter is 0.66 and then pi is 3.14 as an outline ?
i do something wrong here. but with this. you xan also calcylate the diameter or the fictiinal far outmost middle line of a flat circle.
means
so if x^2,y^2=circle
then
x * x, and y * y ÷ diameter = pythogoras or pie or py or pi. 3.something
Omg
I like his smile ☺️
I recognise his desktop background! Grew up roughly 2 miles from where that photo was taken.
Fantastic insight, and I love his enthousiasm!
I need to buy myself a protractor and a compass again
ok, Prof. Johnny Ball, i am sorry, but i want to see your proof now about that matter, you are talking about, i am a german physisist and i say: you are not right!
At 0:48 , please anyone explain/prove that why sum of those two first curves is equal to sum of other curves .
Square of hippopotamus ² = b( bear)² +p(panda)²…🥴
Ah, nostalgia overload seeing Johnny Ball explaining something!
This man, right here, was part of the magic of my childhood. I'm six year old again and grinning from ear to ear!
"The square of the hippopotamus" 😂❤️
As soon as it got to 0:27 I started thinking of "A Mathematical Fable"!
Emperor Palpatine has surprising passion for geometry in his spare time
What a delightful human and a beautiful bit of maths.
I would love this guy as my maths professor in uni. He's such a nice bubbly guy who brings so much child like excitement to maths
"This looks like it'll hurt my brain, let's run it"
-me everytime I see a numberphile vid in my feed
Wow! Nice! He is highly inspiring. I would listen to his stories for hours.
I AM SORRY; BUT ONE LUNE IS NOT EQUAL TO THE TRIANGLE ON THE SAME SIDE OF THE HEIGHT
too many steps skipped. How did he make the jump from a symmetric right triangle to the unsymmetric ?
I saw James Grime mention this about a year ago. I had never heard that in school.
I think this video was too short; it’s interesting but you didn’t cover everything in enough detail to follow.
Q is for Q-anon.
Mind blown, how did I get through a year of university maths and 41 years of life without knowing you could generalise Pythagoras to any similar shapes?!
Also, love Johnny Ball, a true legend.
0:29 "It's not just squares." Indeed. But Ancient Greek geometers used geometry to do what we'd nowadays do using algebra. So when Pythagoras or Euclid said the square of some length, er could take that as referring to the square (2nd power) of some quantity that that length represents. So of course it wasn't just squares (square shapes). The point of Pythagoras isn't squares as in square shapes, it was squares as 2nd powers.
Interesting. I've a problem with a moon shape where none of both circle arcs are a half of a circle. ':) Can it also be related to a triangular surface somehow? I am figuring out N-Gons as a hobby, you can see my YT channel where I've got a pinterest link.
love from Nepal
minute 2:40 the result is right here, because the sum of opposit lunes are equal to area of the included left or right triangle, minute 2:51 again that lunes and the triangles are not equal so the result is right, but the proof is wrong, isnt it?
minute 1:58 i am sorry, but the lune does not equal that triangle!
Johnny Ball is quickly stealing the show here at Numberphile
Prof Ball, your commentary is beautiful