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Pi
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1
3:14
Calculating Pi with Real Pies - Numberphile
by numberphile 286,836 views
How accurately can we calculate Pi using hundreds of REAL pies?
Subscribe to Numberphile: http://bit.ly/13O3ZTL
Extended version of this video (director's slice) at http://www.youtube.com/watch?v=x4kyFKyCMv0
This video features Matt Parker: https://twitter.com/standupmaths Matt believes this is the world's most accurate pie-based Pi calculation.
More Pi videos: http://bit.ly/W4oDN1
Filmed and edited by Brady Haran
Extra camera: James Hennessy
Music: http://www.youtube.com/user/AlanKey86
Learn how the music from this video is based on Pi: http://periodicvideos.blogspot.co.uk/2013/03/pimusic.html
Clearly these pies were used for educational purposes... However during production of the video, Numberphile donated £314 to a local charity to provide food for people in Nottingham at times of crisis.
Behind-the-scenes blog and extra photos: http://periodicvideos.blogspot.co.uk/2013/03/pipies.html
We filmed this video at Meadow Lane, home of Notts County FC.
Website: http://www.numberphile.com/
Numberphile on Facebook: http://www.facebook.com/numberphile
Numberphile tweets: https://twitter.com/numberphile
Google Plus: http://bit.ly/numberGplus
Tumblr: http://numberphile.tumblr.com
Brady's other channels include:
http://www.youtube.com/periodicvideos (Chemistry stuff)
http://www.youtube.com/sixtysymbols (Physics and astronomy)
http://www.youtube.com/numberphile (Numbers and maths)
http://www.youtube.com/DeepSkyVideos (Space stuff)
http://www.youtube.com/nottinghamscience (Science and behind the scenes)
http://www.youtube.com/foodskey (Food science)
http://www.youtube.com/BackstageScience (Big science facilities)
http://www.youtube.com/favscientist (Favourite scientists)
http://www.youtube.com/bibledex (Academic look at the Bible)
http://www.youtube.com/wordsoftheworld (Modern language and culture)
http://www.youtube.com/PhilosophyFile (Philosophy stuff)
http://www.youtube.com/PsyFile (Psychology stuff) -
2
5:34
Pi and the size of the Universe - Numberphile
by numberphile 235,682 views
Pi is famously calculated to trillions of digits - but Dr James Grime says 39 is probably enough. All our Pi videos: http://bit.ly/W4oDN1
An extra note from Dr Grime: "Since pi39 ends in 0, you may think we could use pi38 instead - which has even fewer digits. Unfortunately, the rounding errors of pi38 are ten times larger than the rounding errors of pi39 - more than a hyrdogen atom. So that extra decimal place makes a difference, even if it's 0."
Website: http://www.numberphile.com/
Numberphile on Facebook: http://www.facebook.com/numberphile
Numberphile tweets: https://twitter.com/numberphile
Google Plus: http://bit.ly/numberGplus
Videos by Brady Haran -
3
4:56
How Pi was nearly changed to 3.2 - Numberphile
by numberphile 258,643 views
The State of Indiana nearly passed a law which would have made Pi equal 3.2 - strange but true. More Pi videos from Numberphile: http://bit.ly/W4oDN1
This video features Dr James Grime - https://twitter.com/jamesgrime
The video about squaring circles is being edited and will be coming soon.
A note to potentially disgruntled viewers about making this video longer to include the subsequent lengthy discussion about squaring circles: http://periodicvideos.blogspot.co.uk/2013/03/continue.html
Website: http://www.numberphile.com/
Numberphile on Facebook: http://www.facebook.com/numberphile
Numberphile tweets: https://twitter.com/numberphile
Google Plus: http://bit.ly/numberGplus
Tumblr: http://numberphile.tumblr.com
Videos by Brady Haran -
4
6:28
Sounds of Pi - Numberphile
by numberphile 222,323 views
Professor Philip Moriarty attributes some sounds to Pi in a discussion about its randomness and the Feynman Point.
OUR PI VIDEOS ---
ALEX BELLOS AND ROGER DISCUSS ITS HISTORY
http://www.youtube.com/watch?v=yJ-HwrOpIps
BOUNCING BALLS AND A STRANGE PROPERTY
http://www.youtube.com/watch?v=abv4Fz7oNr0
MATCHES HELP FIND PI
http://www.youtube.com/watch?v=sJVivjuMfWA
THE SOUND OF PI
http://www.youtube.com/watch?v=wPn4tgmU8ek
Phil has put the LabVIEW code at: www.nottingham.ac.uk/~ppzpjm/SoundingPi.vi
Website: http://www.numberphile.com/
Numberphile on Facebook: http://www.facebook.com/numberphile
Numberphile tweets: https://twitter.com/numberphile
Videos by Brady Haran -
5
6:28
Pi and Buffon's Matches - Numberphile
by numberphile 197,474 views
Dr Tony Padilla's unique (and low budget) twist on the Buffon's Needle experiment to learn the true value of Pi.
OUR PI VIDEOS ---
ALEX BELLOS AND ROGER DISCUSS ITS HISTORY
http://www.youtube.com/watch?v=yJ-HwrOpIps
BOUNCING BALLS AND A STRANGE PROPERTY
http://www.youtube.com/watch?v=abv4Fz7oNr0
MATCHES HELP FIND PI
http://www.youtube.com/watch?v=sJVivjuMfWA
THE SOUND OF PI
http://www.youtube.com/watch?v=wPn4tgmU8ek
NUMBERPHILE
Website: http://www.numberphile.com/
Numberphile on Facebook: http://www.facebook.com/numberphile
Numberphile tweets: https://twitter.com/numberphile
Videos by Brady Haran -
6
13:14
Pi and Bouncing Balls - Numberphile
by numberphile 265,469 views
Professor Ed Copeland on a strange occurrence of Pi involving bouncing balls.
See his calculations at: http://www.flickr.com/photos/numberphile/6976718861/in/photostream
Check out a computer simulation at http://periodicvideos.blogspot.com/2012/03/pi-and-simulated-bouncing-balls.html (made by a viewer!)
OUR PI VIDEOS ---
ALEX BELLOS AND ROGER DISCUSS ITS HISTORY
http://www.youtube.com/watch?v=yJ-HwrOpIps
BOUNCING BALLS AND A STRANGE PROPERTY
http://www.youtube.com/watch?v=abv4Fz7oNr0
MATCHES HELP FIND PI
http://www.youtube.com/watch?v=sJVivjuMfWA
THE SOUND OF PI
http://www.youtube.com/watch?v=wPn4tgmU8ek
Website: http://www.numberphile.com/
Numberphile on Facebook: http://www.facebook.com/numberphile
Numberphile tweets: https://twitter.com/numberphile
Videos by Brady Haran -
7
9:42
Pi - Numberphile
by numberphile 346,463 views
Some stuff about Pi, the "celebrity number'. This video features maths-loving author Alex Bellos (http://alexbellos.com/) and Professor Roger Bowley from the University of Nottingham.
Alex's brilliant book can be found at...
UK: http://www.amazon.co.uk/Alexs-Adventures-Numberland-Alex-Bellos/dp/1408809591/ref=pd_sim_b_1
US: http://www.amazon.com/dp/1416588280/ref=cm_sw_su_dp
OUR PI VIDEOS ---
ALEX BELLOS AND ROGER DISCUSS ITS HISTORY
http://www.youtube.com/watch?v=yJ-HwrOpIps
BOUNCING BALLS AND A STRANGE PROPERTY
http://www.youtube.com/watch?v=abv4Fz7oNr0
MATCHES HELP FIND PI
http://www.youtube.com/watch?v=sJVivjuMfWA
THE SOUND OF PI
http://www.youtube.com/watch?v=wPn4tgmU8ek
NUMBERPHILE...
Website: http://www.numberphile.com/
Numberphile on Facebook: http://www.facebook.com/numberphile
Numberphile tweets: https://twitter.com/numberphile
Videos by Brady Haran -
8
11:12
Tau vs Pi Smackdown - Numberphile
by numberphile 194,156 views
Steve Mould (tau) and Matt Parker (pi) go head-to-head. See these guys live at http://festivalofthespokennerd.com/ (very cool show!)
Bid for this brown paper: http://bit.ly/SZctkX
See our tau video: http://www.youtube.com/watch?v=83ofi_L6eAo
And check our Pi videos: http://www.youtube.com/playlist?list=PL4870492ACBDC2E7C
Mat Parker: http://www.standupmaths.com/
Steve Mould: http://www.stevemould.com/
Numberphile Website: http://www.numberphile.com/
Numberphile on Facebook: http://www.facebook.com/numberphile
Numberphile tweets: https://twitter.com/numberphile
Google Plus: http://bit.ly/numberGplus
Videos by Brady Haran
A run-down of Brady's channels:
http://periodicvideos.blogspot.co.uk/2012/06/here-are-my-channels.html -
9
9:43
Tau replaces Pi - Numberphile
by numberphile 270,599 views
Should Pi be replaced by Tau? Professor Phil Moriarty thinks so.
See our collection of Pi videos at: http://www.youtube.com/playlist?list=PL4870492ACBDC2E7C
See ViHart's Tau video at: http://www.youtube.com/watch?v=jG7vhMMXagQ
Tau manifesto: http://tauday.com/
Professor Phil Moriarty is a physicist at the University of Nottingham. His "scrawls" from this video can be seen on Flickr at: http://www.flickr.com/photos/numberphile/
Website: http://www.numberphile.com/
Numberphile on Facebook: http://www.facebook.com/numberphile
Numberphile tweets: https://twitter.com/numberphile
Videos by Brady Haran -
10
6:28
Pi with Pies (director's slice) - Numberphile
by numberphile 81,185 views
A 6'28" version of our "Pi with Pies" calculation. See this full description for more information.
Videos features Matt Parker who tweets at https://twitter.com/standupmaths
The Pi-inspired music in the video explained: http://periodicvideos.blogspot.co.uk/2013/03/pimusic.html
Our full collection of Pi videos at http://bit.ly/W4oDN1
While the pies are usually delicious, this batch was not for consumption (even by hungry students, for those who suggested it!) but we feel they were used in a fun way to make people think about mathematics - perhaps some people who would not otherwise take an interest... To mark Pi Day we instead donated £314 to a local charity which helps feed people in crisis.
If you'd like to make a donation, here are some suggestions:
Matt is a supporter of Depaul UK, helping young homless people. You can donate through their website: http://www.depauluk.org/
Numberphile's donation was to a local group which does not have online donation facilities.
However here are some other options...
http://www.wfp.org/
http://www.foodcycle.org.uk/
http://www.napsoc.org/
Contact us with any others you'd like on the list!
Numberphile also raises money for cancer research if you'd prefer - donate here: http://www.justgiving.com/numberphile-charity
Special thanks to Pukka Pies (for the pies), Notts Country FC (for hosting us) and the football channel Copa90 (for helping us out) - http://www.youtube.com/user/Copa90football - plus James Hennessy for being second camera!
Website: http://www.numberphile.com/
Numberphile on Facebook: http://www.facebook.com/numberphile
Numberphile tweets: https://twitter.com/numberphile
Google Plus: http://bit.ly/numberGplus
Tumblr: http://numberphile.tumblr.com
Videos by Brady Haran