How Pi was discovered by a genius - This is astounding!

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Shoo Rayner Drawing

Shoo Rayner Drawing

День тому

When you find out how the value of Pi was discovered, it will change your whole idea of Math and Geometry. Teachers tell you that Pi is about 3.14 but they never explain why. Visual thinkers need things explained in another way and this will explain it so you go OH! Now I understand!
Follow the instructions and you can make your own Archimedes discovery of Pi to amaze your friends with.
With award winning children's author and illustrator, Shoo Rayner
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Everyone asks about the tools I use when I'm out using my sketchbook. here's a video to show you what and how I use them. • How To Use A Sketchbook
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Shoo Rayner is an award-winning illustrator and author of over 200 books for children.
The Shoo Rayner Drawing Channel won the 2011 UKposts NextUp award.
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КОМЕНТАРІ: 257
@yaish3463
@yaish3463 2 роки тому
This is is the best explanation of pi I've seen so far, that too the explanation was by one of the best artists. And the drawings were simple yet elegant, I'm impressed and you have caught my attention
@tiffanyscott3544
@tiffanyscott3544 2 роки тому
Ditto!
@user-hl2go8tw7n
@user-hl2go8tw7n 10 місяців тому
Hello ! Please tell me if the circle was smaller and stopped to say 2 and something ? What happen ?
@EnidsEventfullLife
@EnidsEventfullLife 4 роки тому
Nice video Shoo. Fun Fact to work out PI, How I wish I could calculate PI How = 3, I=1, wish=4, I=1, could=5, calculate=9, pi=2 3.141592=PI
@shoorayner
@shoorayner 4 роки тому
Never heard that! Id spend all day counting on my fingers and adding up wrong 😆
@joshuabardon9992
@joshuabardon9992 4 роки тому
This is put together very well! You always sound so happy while talking about all this which makes it feel very welcoming
@shoorayner
@shoorayner 4 роки тому
Glad you think so! 😃
@KENG-mf8pl
@KENG-mf8pl 3 роки тому
This is the most logical explanation of pi
@danielparsons2859
@danielparsons2859 2 роки тому
I thought it was a complex question and in fact I found a beautifully simple answer in this video. Thank you. Consequently I've now subscribed.
@joemontiel8726
@joemontiel8726 8 місяців тому
I wish there were more teachers like this guy!
@harikrishna8146
@harikrishna8146 Рік тому
How did that wheel instantly turned into 3D with the addition on Grey sketch 😨😨 Very great explanation sir
@shoorayner
@shoorayner Рік тому
Good question!
@noahman27
@noahman27 2 роки тому
This is an awesome illustration of Pi. Thanks!!!!!!
@petestevens9740
@petestevens9740 2 роки тому
This is a really nice explanation of what Pi is / where it comes from. It is NOT a demonstration of how Archimedes determined a more precise value than "a little more than 3". Pi is only approximately 3.14, and Archimedes didn't have access to numbers written in decimal form anyway - they hadn't been invented yet. He was able to work out (using a very brilliant geometric method) that the number of diameters it takes to equal the circumference has to be between 3 10/70 and 3 10/71. That was enough precision for him, and it gives us 3 1/7 (22/7) which is about 3.148. Would love to see you make a video showing that method!
@shoorayner
@shoorayner 2 роки тому
Thanks - It's really for the visually minded and mathematically challenged. For some people the maths only makes sense when there is a practical demonstration behind it. 😃
@betha8566
@betha8566 3 місяці тому
Yes, I read that he used hexagons inside and outside a circle and doubled them until he got to 96 sides. Then he found out the perimeter that way into the fractions you described.
@betha8566
@betha8566 3 місяці тому
@@shoorayner I enjoyed your explanation. I always thought of pi as "just a number," but now I "see" that it's 3.141592... DIAMETERS of a circle!
@jgarrison1309
@jgarrison1309 Місяць тому
Nice video. If you do this again, right around the six minute mark of the video, when you were getting three and a half and a then three and a quarter, measure the line with your ruler... to that mark... and divide that by the diameter of your circle. Use that as your decimal. You wrote down 3.14 out of nowhere because that was what we were told pi was in school. The straight line distance divided by the diameter of your wheel is the way to go, if you don't know about 3.14 ahead of time.
@billshiff2060
@billshiff2060 Місяць тому
22/7 (3.1428) was Archimedes upper boundary for PI not PI itself. Archimedes said PI lies between 3.1408 and 3.1428 which is approximately 3.141. Of course he stated it in fractions not decimals. 223/71 < π < 22/7 or 3.1408 < π < 3.1428 So pi must be ~ 3.141_
@azanshaikh7825
@azanshaikh7825 Рік тому
This is the most brilliant explanation of Pi I have ever come across. Well done, good sir! subscribed.
@user-hl2go8tw7n
@user-hl2go8tw7n 10 місяців тому
Hello ! Please tell me if the circle was smaller and stopped to say 2 and something ? What happen ?
@Sorflor
@Sorflor 11 місяців тому
Amazing explanation of pi. I've never thought that's how someone would discover it. 👍
@gerarddonovan4145
@gerarddonovan4145 2 роки тому
Brilliant explaination
@lampy6070
@lampy6070 9 місяців тому
So, by using this formula (l=dxπ), you can calculate the lenght the wheel will cross when you roll it one full circle based on its diametar.
@thecommonsenseconservative5576
@thecommonsenseconservative5576 7 місяців тому
I went to a top 100 high school and I took AP calculus as a junior and I am now 39 and you just explained to me how pie came about
@shoorayner
@shoorayner 6 місяців тому
lol you were taught by mathematicians not artists 🤣
@billshiff2060
@billshiff2060 Місяць тому
Its PI π not pie🥧
@thecommonsenseconservative5576
@thecommonsenseconservative5576 Місяць тому
@@billshiff2060 cool story bro tell it again
@billshiff2060
@billshiff2060 Місяць тому
@@thecommonsenseconservative5576 Its a fact not a "story". Something tells me your "top 100" high school had those short busses lol.
@thecommonsenseconservative5576
@thecommonsenseconservative5576 Місяць тому
@@billshiff2060 your "something" was on those short busses that drove by my high school you dumb pedantic
@thahirunnisajaffar
@thahirunnisajaffar 10 місяців тому
The explanation and demonstration was outstanding sir.
@shoorayner
@shoorayner 10 місяців тому
Thank you so much!
@robertbour77
@robertbour77 4 роки тому
Very helpful! That looks like an interesting book!
@shoorayner
@shoorayner 4 роки тому
It is!😆
@kevinkasp
@kevinkasp Місяць тому
I figured this out in 4th grade by experimenting with various coins as my “wheel”. We hadn’t learned fractions yet so all I could say was “the distance around a circle is a little bit more than three times the diameter.” Well actually I didn’t know the word diameter yet so it was “A little bit more than three times across the circle.”
@shoorayner
@shoorayner Місяць тому
Eureka! 😆
@jgarrison1309
@jgarrison1309 Місяць тому
ukposts.info/have/v-deo/oJZ6nIaYhYGpr2w.html
@AllanEngelhardt0
@AllanEngelhardt0 4 роки тому
I love these. More please :)
@Fiskie666
@Fiskie666 2 роки тому
I finally understood what pi is .. incredible and it is soo simple! like all genius things it is simple. Do you think that anyone would explain in this way in elementary? Everyone would have understood.
@shoorayner
@shoorayner 2 роки тому
Math teachers think in numbers and don’t understand that others think in images. They don’t get it so carry on the old way
@achembusinessidea5306
@achembusinessidea5306 Рік тому
Truly you are one of the best teachers i have ever come across. Very useful video sir. I would like to have this book in India . Pls tell me how may can I purchase it from you ??
@shoorayner
@shoorayner Рік тому
Thank you! It should be avaioable ithrough book stores :)
@shaikhao9638
@shaikhao9638 3 роки тому
Very helpful
@aranjaysharma
@aranjaysharma 2 роки тому
This will help me a LOT in my school project thank you sooooo much mind sir
@shoorayner
@shoorayner 2 роки тому
Most welcome 😊
@sharpasmarble6344
@sharpasmarble6344 3 роки тому
Awesome thank u ✌🏻📚
@danielvincent6453
@danielvincent6453 3 роки тому
I mean THIS IS THE BEST EXPLANATION Thanks man
@jgarrison1309
@jgarrison1309 Місяць тому
Nice video. If you do this again, right around the six minute mark of the video, when you were getting three and a half and a then three and a quarter, measure the line with your ruler... to that mark... and divide that by the diameter of your circle after you measure your wheel. Once you have that answer to the division problem, use that as your decimal. You wrote down 3.14 out of nowhere because that was what we were told pi was in school. The straight line distance divided by the diameter of your wheel is the way to go, if you don't know about 3.14 ahead of time.
@jordanrichards320
@jordanrichards320 2 роки тому
I just subscribed because of this explanation.
@juicy_apple_x4046
@juicy_apple_x4046 Рік тому
This is how it should be taught in public schools
@Himachal.culture
@Himachal.culture 2 роки тому
thanks very for this easy concept.
@shoorayner
@shoorayner 2 роки тому
Glad you liked it!
@ronaldmontgomery8446
@ronaldmontgomery8446 3 дні тому
The cord dimension of an included angle of 1/60° (MOA) at exactly 300 yards (10800") = pie π.
@rosannfitzekam5315
@rosannfitzekam5315 Рік тому
Love your videos!
@legendaryfailure
@legendaryfailure Рік тому
This is the best explanation, and I refuse to learn anything else any other way
@shoorayner
@shoorayner Рік тому
Good for you! 😄
@Gubdeer
@Gubdeer Рік тому
Great job!
@shoorayner
@shoorayner Рік тому
Thanks!
@tutorchristabelquiz
@tutorchristabelquiz Рік тому
awesome explanation
@shoorayner
@shoorayner Рік тому
Glad you liked it
@gwen7005
@gwen7005 4 роки тому
Oh my! Thank you.
@shoorayner
@shoorayner 4 роки тому
You're welcome!
@patrickhuynh1766
@patrickhuynh1766 Рік тому
6:28 "No one ever told me that, no one. If they did I wouldve understood"
@gedtoon6451
@gedtoon6451 Рік тому
I like the rounded digits on your calculator. Who is the manufacturer?
@shoorayner
@shoorayner Рік тому
lol - that's an iphone!
@I_DidntKnowThat
@I_DidntKnowThat Рік тому
I always knew what pi represented, but the simplicity of how Archimedes discovered it is astonoshing. Is there a mathematical proof that the ratio of the diameter and circumference is always pi?
@shoorayner
@shoorayner Рік тому
I'm afraid you'll need a mathematician not an artist for that! 😄
@agentstona
@agentstona Рік тому
nice you showed the circumference and pi relation ship ,Is there a way to show the Area and pi relation ship too using cardboards ?
@shoorayner
@shoorayner Рік тому
Oooh! I’ll have to think about that
@alansands256
@alansands256 11 місяців тому
See my reply under comment from "tom01". I don't use cardboard but I explain the relationship between Pi and area.
@ManojKumar-ef2og
@ManojKumar-ef2og 2 роки тому
The use of the home avalible parts really caught my attention
@richblaker9087
@richblaker9087 Рік тому
That really is truly astonishing... I had no idea Pritt Stick was even around in Archimedes time...
@shoorayner
@shoorayner Рік тому
Yeah! it's been going forever! 😂
@montyyy
@montyyy 2 роки тому
Thanks this video is very useful
@shoorayner
@shoorayner 2 роки тому
Glad it was helpful!
@hihi-td9jd
@hihi-td9jd 4 роки тому
Awesome!
@shoorayner
@shoorayner 4 роки тому
Thanks!
@independentballerina
@independentballerina 2 роки тому
wonderful!
@shoorayner
@shoorayner 2 роки тому
Thank you! Cheers!
@takeshisatou2371
@takeshisatou2371 3 роки тому
engineers: pi=3. Take it or leave it
@Name-ps9fx
@Name-ps9fx 4 місяці тому
I always thought he used geometry and trig to get a precise number....he used a 6-sided hexagon inside a circle worked out the circumference of that, then made it into a 12-sided shape and got the circumference, made _that_ into a 24-sided etc etc until he'd made a 96 sided shape and was able to figure out pi to about 10 digits. Good effort though, certainly at the conceptual level of probably most people.
@shoorayner
@shoorayner 4 місяці тому
for non mathematician visual thinker, this comes as a revelation. You may be right... but so might I!
@kingnothing735
@kingnothing735 2 роки тому
What I came for: The history of pi Why I stay: A quick art attack craft
@Papi_21
@Papi_21 3 роки тому
I swear if someone told me this I would have done pure Maths instead maths literacy in school 😂
@puyagorji4020
@puyagorji4020 2 роки тому
brilliant
@anshrahatif4391
@anshrahatif4391 3 роки тому
I have completed my high school. I wish I would have known this when I was in my school and I would rock it before my friends and teachers.
@shoorayner
@shoorayner 3 роки тому
lol
@paulhanger7242
@paulhanger7242 Рік тому
I think if you explained this to school kids they would enjoy mathematics more. Such a great demonstration
@shoorayner
@shoorayner Рік тому
That's why I made the video. Mathematicians wouldn't think to explain this for visual thjinkers!
@user-hl2go8tw7n
@user-hl2go8tw7n 10 місяців тому
Hello ! Please tell me if the circle was smaller and stopped to say 2 and something ? What happen ?
@krishiyer3990
@krishiyer3990 2 дні тому
Brilliant
@arshpreetsingh8567
@arshpreetsingh8567 2 роки тому
Aryabhatta discovered pie
@dogslife4831
@dogslife4831 4 роки тому
Delightful video
@shoorayner
@shoorayner 4 роки тому
Glad you enjoyed it
@wywot
@wywot 9 годин тому
Would a Shredded Wheat carton do just as well?
@shoorayner
@shoorayner 6 годин тому
Crunchy nut cornflakes is best. They were Archimedes fave 😆
@demon7305
@demon7305 3 роки тому
let's all agree if I had watched this my exam would have been simpler and more fun to memorize.
@shazrizvi4343
@shazrizvi4343 2 роки тому
Marvellous
@SergioRodriguez-og7oc
@SergioRodriguez-og7oc 11 днів тому
THANK YOU!!!!
@shoorayner
@shoorayner 10 днів тому
You're welcome!
@naveenshankar
@naveenshankar Рік тому
Beautiful
@shoorayner
@shoorayner Рік тому
Thank you! Cheers!
@missionlightsgrp9187
@missionlightsgrp9187 Рік тому
Thank you so much. I’m truly greateful.
@nathansequeira9442
@nathansequeira9442 2 роки тому
Love the videos!
@shoorayner
@shoorayner 2 роки тому
Glad you like them!
@treint6751
@treint6751 Рік тому
That's pretty cool
@11n_n
@11n_n Рік тому
Wow, great video!
@shoorayner
@shoorayner Рік тому
Thanks!
@Sam-lj4bm
@Sam-lj4bm 2 місяці тому
So it will work in every rotating body?
@DaltonKevinM
@DaltonKevinM Рік тому
There must have been some calculation that someone performed whose answer was pi, and it wouldn't make sense for the known numbers of that calculation to be some ugly addition/subtraction or multiple of pi so I've always wondered how we got pi in the first place. I do still wonder how they continued to calculate the least significant numbers during the discovery of pi.
@user-hl2go8tw7n
@user-hl2go8tw7n 10 місяців тому
Hello ! Please tell me if your circle was smaller and stopped to say 2 and something ? What happen ?
@shoorayner
@shoorayner 9 місяців тому
if the circle is smaller or larger the ratio is still exactly the same
@albertobernado4103
@albertobernado4103 2 роки тому
But who was the first person to discover that this circumference/diameter ratio is a ratio with infinite value? Where was this discovered and how exactly was this "measurement" found? Can anyone help me find this information?
@shoorayner
@shoorayner 2 роки тому
We don’t know that Pi is infinite!
@alansands256
@alansands256 11 місяців тому
I believe it IS infinite. See my reply under "tom01" comment.
@donaldduck6122
@donaldduck6122 Рік тому
damn the part where he explained how pi came to be blew my mind
@gray3589
@gray3589 11 місяців тому
(⁠ ⁠ꈍ⁠ᴗ⁠ꈍ⁠) Makise Kurisu sugoi.
@gray3589
@gray3589 11 місяців тому
In time, go back
@froggyblocks
@froggyblocks 2 роки тому
Thanks man
@shoorayner
@shoorayner 2 роки тому
You're welcome!
@stericsrv669
@stericsrv669 2 роки тому
Being a maths student, it's very time consuming😒... but understood well...👍👍😃
@shoorayner
@shoorayner 2 роки тому
Yes, true... but it's for non-maths students to understand! lol
@cuddly_panda7409
@cuddly_panda7409 Рік тому
And then there’s my teacher who gave me homework to search how pi how was created?Yaaaaaaaaaaa
@tunein6765
@tunein6765 4 роки тому
If only he compared the radius to the circumference instead of the diameter Now everyone learns about pie instead of tau
@scherwinn
@scherwinn 2 роки тому
great.
@Poor_Devil
@Poor_Devil Рік тому
tremendous
@thatsdaniellelol
@thatsdaniellelol 17 днів тому
Is the book still available??
@shoorayner
@shoorayner 10 днів тому
it certainly is amzn.to/3xMLepP
@zprime4624
@zprime4624 2 роки тому
Sir i dont know if you are seeing this but im begging. Please tell me the name of your background music Its really awesome 😭
@shoorayner
@shoorayner 2 роки тому
it was written for me especially by the wonderful @cleffernotes ukposts.info
@zprime4624
@zprime4624 2 роки тому
@@shooraynerThank you but Sir i tried to look for it there are so many songs 😥
@davidgggggggg
@davidgggggggg 2 роки тому
Yeah. They never explained anything to me. They just threw rules and numbers at me to put on my paper.
@jfarinhote
@jfarinhote 3 місяці тому
You said something very important, had you been explained like that, you would have understood it way faster.
@sugardaddy9721
@sugardaddy9721 3 роки тому
Why not the formula be Diameter x Pi? I mean, Iget that 2 x radius is diameter. But woupd t it be shorter if we just use diameter x pi.
@shoorayner
@shoorayner 3 роки тому
because r is the basic unit and is used in all other circle/sphere formulae. It's easier to keep it all simple to D x pi is correct.
@sugardaddy9721
@sugardaddy9721 3 роки тому
@@shoorayner wow, thanks for the extra information. I wish I had a math teacher like you when I was in school
@adityamishra7711
@adityamishra7711 Рік тому
Yippiyay.. !!! Wowie 👏... Good job though seriously
@user-zy7mc2ci9t
@user-zy7mc2ci9t Місяць тому
I didn’t even know what pi until my dad and the guy explained it to me
@Dontmakemeyourchannel
@Dontmakemeyourchannel Місяць тому
I
@LesleLeBang
@LesleLeBang 3 роки тому
-Take the first three odd integers: 1,3,5 -Double them thusly: 113355 -Divide the last three by the first three thusly: 355/113 There ya go, Pi accurate to 6 decimal places!
@OXIR
@OXIR 3 роки тому
Oh thank you for this information
@shoorayner
@shoorayner 3 роки тому
Doesn’t help nonmathematicians who are visual thinkers! 😃
@Lightmaker5
@Lightmaker5 Місяць тому
Chuck Norris needed a pick up truck, so he invented pi.
@andy42x
@andy42x 24 дні тому
I'm dopey and don't get it. 😢
@MarkMcMillen2112
@MarkMcMillen2112 2 роки тому
A much better video would be to explain how ancient civilizations determined the value of Pi using ever more accurate fractions. This dates back at least as far as the ancient Egyptians, who most certainly taught the Greeks how to do this.
@shoorayner
@shoorayner 2 роки тому
Ill look forward to seeing your video
@someguynotnamedjaylenharmo5431
@someguynotnamedjaylenharmo5431 3 роки тому
Happy pi day everyone
@nomaynemcintosh5462
@nomaynemcintosh5462 3 роки тому
Wow
@Jessie_kimm
@Jessie_kimm 4 роки тому
6:13 oh boy i do not know how to count like that 😂😂😂😂😂😂😂😂😅😅😆😆
@raidtheferry
@raidtheferry Місяць тому
why did you have to yse Kellogs Crunchy Nut Corn Flakes for the demonstration now I'm absolutely craving a bowl of that deliciousness
@shoorayner
@shoorayner Місяць тому
I have to creep downstairs in the middle of the night for a bowlful or I can’t get back to sleep 😆
@gingerdie
@gingerdie Рік тому
Archimedes didn't have sophisticated tools, all he had was an old wooden cartwheel. Luckily, we have sophisticated tools like, *Kellog's Crunchy Nut Cornflakes*
@shoorayner
@shoorayner Рік тому
you got it!
@mark2tech
@mark2tech Рік тому
wouldn't have it been easier to wrap a string around a circle and then see how many times the diameter fits in the length of the string measuring the circumference??
@shoorayner
@shoorayner Рік тому
Depends on how long your piece of string is!😄
@alexfinnegan9478
@alexfinnegan9478 Рік тому
You skipped a step. It's the ratio of circum to diam c/d=pi
@deadmausish
@deadmausish Рік тому
wwhere did the 34 m come from? Was with you until you said 2 * pi etc ..why 2 * ?
@shoorayner
@shoorayner Рік тому
You measure a circle by radius r. The diameter is 2 x r
@Jessie_kimm
@Jessie_kimm 4 роки тому
6:37 OMG HOW YOU KNOW!!!!!! Maybe thats why i dont know how to count like that😂😂😂😂😂😂😂😂😂😂😂😂
@Hermes88369
@Hermes88369 6 місяців тому
Interesting the line begins and ends, the wheel has defined parameters, but pi continues forever. Ever ponder why?
@shoorayner
@shoorayner 6 місяців тому
I could ponder that to infinity!
@Hermes88369
@Hermes88369 6 місяців тому
@@shoorayner Or you could realize Alpha and Omega had different symbols and this way of thinking is flawed lol.
@edibowiemariano977
@edibowiemariano977 4 роки тому
1st and nice vid Shoo!
@edibowiemariano977
@edibowiemariano977 4 роки тому
#Best genius ever
@shoorayner
@shoorayner 4 роки тому
lol - I agree😀
@billshiff2060
@billshiff2060 Місяць тому
Archimedes actually determined it to be 3.141 , to 1/10 of 1%
@ganbaatargforce9446
@ganbaatargforce9446 2 роки тому
exactly this is the best explanation of pi
@shoorayner
@shoorayner 2 роки тому
Glad you liked it
@nonya69
@nonya69 3 роки тому
"I'm an artist. Not a mathematician" haha
@dalvirajesh9928
@dalvirajesh9928 2 роки тому
U r good 👍
@shoorayner
@shoorayner 2 роки тому
Thanks 😅
@nottyger
@nottyger 11 місяців тому
Skip to 5:00 minutes for the actual explanation
@R1ester
@R1ester Рік тому
8:23 why did you put the dot on the middle it looks like multiplication sing put the dot on bottom!!!
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