Numberphile
Videos about numbers - it's that simple. Videos by Brady Haran

437 videos
A Sequence with a Mistake - Numberphile A Sequence with a Mistake - Numberphile
2 days ago En
Sequence guru Neil Sloane on a sequence which puzzled him - until he spotted the mistake! More links & stuff in full description below ↓↓↓ More Neil Sloane videos: http://bit.ly/Sloane_Numberphile The OEIS: https://oeis.org Hanny's Voorwerp: https://youtu.be/RDr6bSB6Vlg Numberphile is supported by the Mathematical Sciences Research Institute (MSRI): http://bit.ly/MSRINumberphile We are also supported by Science Sandbox, a Simons Foundation initiative dedicated to engaging everyone with the process of science. https://www.simonsfoundation.org/outreach/science-sandbox/ And support from Math For America - https://www.mathforamerica.org/ NUMBERPHILE Website: http://www.numberphile.com/ Numberphile on Facebook: http://www.facebook.com/numberphile Numberphile tweets: https://twitter.com/numberphile Subscribe: http://bit.ly/Numberphile_Sub Video by Brady Haran and Pete McPartlan Patreon: http://www.patreon.com/numberphile Numberphile T-Shirts and Merch: https://teespring.com/stores/numberphile Brady's vid
Eureka Sequences - Numberphile Eureka Sequences - Numberphile
1 month ago En
OEIS founder Neil Sloane with more sequences to ponder - of course! Check out Brilliant (get 20% off their premium service): https://brilliant.org/numberphile (sponsor) More links & stuff in full description below ↓↓↓ More Neil Sloane videos: http://bit.ly/Sloane_Numberphile Visit the OEIS: https://oeis.org/ Today's featured sequences: https://oeis.org/A008864 and https://oeis.org/A001043 Numberphile is supported by the Mathematical Sciences Research Institute (MSRI): http://bit.ly/MSRINumberphile We are also supported by Science Sandbox, a Simons Foundation initiative dedicated to engaging everyone with the process of science. https://www.simonsfoundation.org/outreach/science-sandbox/ And support from Math For America - https://www.mathforamerica.org/ NUMBERPHILE Website: http://www.numberphile.com/ Numberphile on Facebook: http://www.facebook.com/numberphile Numberphile tweets: https://twitter.com/numberphile Subscribe: http://bit.ly/Numberphile_Sub Videos by Brady Haran Animation by Pete McPartlan
The Levine Sequence - Numberphile The Levine Sequence - Numberphile
1 month ago En
Neil Sloane from the OEIS has another number sequence which escalates quickly. More links & stuff in full description below ↓↓↓ More videos with Neil Sloane: http://bit.ly/Sloane_Numberphile Levine's sequence on the OEIS: https://oeis.org/A011784 Neil is the founder and keeper of the The On-Line Encyclopedia of Integer Sequences: https://oeis.org/ Numberphile Podcast: https://www.numberphile.com/podcast Unmade Podcast: https://www.unmade.fm/ Numberphile is supported by the Mathematical Sciences Research Institute (MSRI): http://bit.ly/MSRINumberphile We are also supported by Science Sandbox, a Simons Foundation initiative dedicated to engaging everyone with the process of science. https://www.simonsfoundation.org/outreach/science-sandbox/ And support from Math For America - https://www.mathforamerica.org/ NUMBERPHILE Website: http://www.numberphile.com/ Numberphile on Facebook: http://www.facebook.com/numberphile Numberphile tweets: https://twitter.com/numberphile Subscribe: http://bit.ly/Numberphile_S
Nightingale Diagrams - Numberphile Nightingale Diagrams - Numberphile
1 month ago En
Professor Mike Merrifield discusses diagrams popularized by Florence Nightingale. Check out Brilliant (get 20% off their premium service): https://brilliant.org/numberphile (sponsor) More links & stuff in full description below ↓↓↓ Professor Mike Merrifield is an astronomer at the University of Nottingham, UK. He's updating his own Nightingale diagram regularly on Twitter: https://twitter.com/AstroMikeMerri More videos with Mike: http://bit.ly/Merrifield_Playlist Sixty Symbols: https://www.youtube.com/sixtysymbols Deep Sky Videos: https://www.youtube.com/deepskyvideos The Greatest Ever Inforgraphic: https://youtu.be/3T7jMcstxY0 Numberphile is supported by the Mathematical Sciences Research Institute (MSRI): http://bit.ly/MSRINumberphile We are also supported by Science Sandbox, a Simons Foundation initiative dedicated to engaging everyone with the process of science. https://www.simonsfoundation.org/outreach/science-sandbox/ And support from Math For America - https://www.mathforamerica.org/ NUMBERPHIL
Cuneiform Numbers - Numberphile Cuneiform Numbers - Numberphile
2 months ago En
Alex Bellos discusses how numbers were written in ancient Cuneiform. More links & stuff in full description below ↓↓↓ More from this interview on Numberphile2: https://youtu.be/n-sxOVSZc-Q Alex Bellos website: http://www.alexbellos.com And his books on Amazon (including the Language Lovers Puzzle Book which features cuneiform): https://amzn.to/3czJjXl More Alex Bellos on Numberphile: http://bit.ly/Bellos_Playlist Search the British Museum collection at: https://www.britishmuseum.org/collection Numberphile is supported by the Mathematical Sciences Research Institute (MSRI): http://bit.ly/MSRINumberphile We are also supported by Science Sandbox, a Simons Foundation initiative dedicated to engaging everyone with the process of science. https://www.simonsfoundation.org/outreach/science-sandbox/ And support from Math For America - https://www.mathforamerica.org/ NUMBERPHILE Website: http://www.numberphile.com/ Numberphile on Facebook: http://www.facebook.com/numberphile Numberphile tweets: https://twitter.
All the World's Coronavirus fits in a Coke Can - Numberphile All the World's Coronavirus fits in a Coke Can - Numberphile
2 months ago En
Kit Yates explains how he calculated that all the SARS-CoV-2 in the world would fit inside a Coke can - and discusses "Fermi Estimates". More links & stuff in full description below ↓↓↓ A little extra from this interview on Numberphile2: https://youtu.be/4qVM5CbKnF8 Kit Yates website: https://kityates.com More coronavirus content on Numberphile... The Coronavirus Curve with Ben Sparks: https://youtu.be/k6nLfCbAzgo Math and Coronavirus with Kit Yates: https://youtu.be/mTvKQYTV0Yw Statistics with Jennifer Rogers: https://youtu.be/gwlM0ulUsTY Epidemiology with Adam Kucharski: https://youtu.be/f0pIho2TnSc Crystal Balls with Hannah Fry: https://youtu.be/Xkqtcm3w7Vw Coke cans in acid and base: https://youtu.be/WnPrtYUKke8 Coke can in liquid nitrogen: https://youtu.be/GIoxY9kECRE More... The total number and mass of SARS-CoV-2 virions in an infected person: https://www.medrxiv.org/content/10.1101/2020.11.16.20232009v1 Inferred duration of infectious period of SARS-CoV-2: rapid scoping review and analysis of avai
Gabriel's Horn Paradox - Numberphile Gabriel's Horn Paradox - Numberphile
2 months ago En
Featuring Tom Crawford. Check out Brilliant (get 20% off their premium service): https://brilliant.org/numberphile (sponsor) More links & stuff in full description below ↓↓↓ Extra footage from this interview: https://youtu.be/EsX9y0lKsZw Tom Crawford's website, with links to his work and other outreach: https://tomrocksmaths.com More Tom Crawford videos on Numberphile: http://bit.ly/Crawford_Videos Infinity Paradoxes: https://youtu.be/dDl7g_2x74Q Vuvuzelas on Sixty Symbols (our physics channel): https://youtu.be/ATVbnilxIrs Numberphile is supported by the Mathematical Sciences Research Institute (MSRI): http://bit.ly/MSRINumberphile We are also supported by Science Sandbox, a Simons Foundation initiative dedicated to engaging everyone with the process of science. https://www.simonsfoundation.org/outreach/science-sandbox/ And support from Math For America - https://www.mathforamerica.org/ NUMBERPHILE Website: http://www.numberphile.com/ Numberphile on Facebook: http://www.facebook.com/numberphile Numb
Annoying Puzzles (and Cognitive Reflection Problems) - Numberphile Annoying Puzzles (and Cognitive Reflection Problems) - Numberphile
3 months ago En
This video features Tim Harford. Check out Brilliant (get 20% off their premium service): https://brilliant.org/numberphile (sponsor) More links & stuff in full description below ↓↓↓ See an extra snippet from this interview on Numberphile2: https://youtu.be/1lwocqnBmVc Tim Harford website: https://timharford.com How to Make the World Add Up: https://amzn.to/3oBcDRx Or (different title in the US): The Data Detective: https://amzn.to/3am3s26 Thinking Fast and Slow: https://amzn.to/2NTaEeH Tim on the Numberphile podcast: https://youtu.be/E8bkB8JO2Bo Tim's video about storks and babies: https://youtu.be/-n-d1ApBTFw Numberphile is supported by the Mathematical Sciences Research Institute (MSRI): http://bit.ly/MSRINumberphile We are also supported by Science Sandbox, a Simons Foundation initiative dedicated to engaging everyone with the process of science. https://www.simonsfoundation.org/outreach/science-sandbox/ And support from Math For America - https://www.mathforamerica.org/ NUMBERPHILE Website: http:
A proof that e is irrational - Numberphile A proof that e is irrational - Numberphile
3 months ago En
Professor Ed Copeland shows a proof by Joseph "Voldemort" Fourier that e is irrational. Check out episode sponsor http://KiwiCo.com/Numberphile for 50% off your first month of any subscription. The crates are great! More links & stuff in full description below ↓↓↓ Ed Copeland is a physics professor at the University of Nottingham. Check out more videos with him here: http://bit.ly/EdCopeland And here for some meatier chats: http://bit.ly/CopelandGoesLong And here's a previous video about e with James Grime: https://youtu.be/AuA2EAgAegE Comment on this video on Brady's subreddit: https://redd.it/l3zuqq Numberphile is supported by the Mathematical Sciences Research Institute (MSRI): http://bit.ly/MSRINumberphile We are also supported by Science Sandbox, a Simons Foundation initiative dedicated to engaging everyone with the process of science. https://www.simonsfoundation.org/outreach/science-sandbox/ And support from Math For America - https://www.mathforamerica.org/ NUMBERPHILE Website: http://www.numbe
Quasiperfect Numbers with Eric Lander - Numberphile Quasiperfect Numbers with Eric Lander - Numberphile
3 months ago En
Eric Lander discusses how quasiperfect numbers gave him a start... More links & stuff in full description below ↓↓↓ This interview was filmed in 2015 but remained unedited and unpublished until now... The other main interview from that day (about "Basic Research") can be found here: https://youtu.be/6gnsQjPCC78 The Westinghouse Science Talent Search has since become the Regeneron Science Talent Search: https://en.wikipedia.org/wiki/Regeneron_Science_Talent_Search Numberphile is supported by the Mathematical Sciences Research Institute (MSRI): http://bit.ly/MSRINumberphile We are also supported by Science Sandbox, a Simons Foundation initiative dedicated to engaging everyone with the process of science. https://www.simonsfoundation.org/outreach/science-sandbox/ And support from Math For America - https://www.mathforamerica.org/ NUMBERPHILE Website: http://www.numberphile.com/ Numberphile on Facebook: http://www.facebook.com/numberphile Numberphile tweets: https://twitter.com/numberphile Subscribe: http:/
The Drag Equation (Empire State Building v Eiffel Tower) - Numberphile The Drag Equation (Empire State Building v Eiffel Tower) - Numberphile
4 months ago En
Tom Crawford discusses drag - then we drop the Empire State Building and Eiffel Tower into the ocean... Check out Brilliant (get 20% off their premium service): https://brilliant.org/numberphile (sponsor) More links & stuff in full description below ↓↓↓ Find out more about Tom Crawford: https://tomrocksmaths.com/about/ More Tom videos on Numberphile: http://bit.ly/Crawford_Videos Check out some raw slow motions from filming of this video: https://youtu.be/sLR-2sTu20g Numberphile is supported by the Mathematical Sciences Research Institute (MSRI): http://bit.ly/MSRINumberphile We are also supported by Science Sandbox, a Simons Foundation initiative dedicated to engaging everyone with the process of science. https://www.simonsfoundation.org/outreach/science-sandbox/ And support from Math For America - https://www.mathforamerica.org/ NUMBERPHILE Website: http://www.numberphile.com/ Numberphile on Facebook: http://www.facebook.com/numberphile Numberphile tweets: https://twitter.com/numberphile Subscribe: h
Butterflies and Gyroids - Numberphile Butterflies and Gyroids - Numberphile
4 months ago En
Dr Sabetta Matsumoto discusses some of the mathematics of colour in nature, including butterfly wings and soap films. More links & stuff in full description below ↓↓↓ Dr Matsumoto's group at Georgia Tech: http://matsumoto.gatech.edu And her Twitter: https://twitter.com/sabetta_ Previous video with Sabetta on Numberphile: https://youtu.be/0e5vzTsLh2s Brady looks at butterflies on Objectivity: https://youtu.be/lJWHppdupbI Numberphile is supported by the Mathematical Sciences Research Institute (MSRI): http://bit.ly/MSRINumberphile We are also supported by Science Sandbox, a Simons Foundation initiative dedicated to engaging everyone with the process of science. https://www.simonsfoundation.org/outreach/science-sandbox/ And support from Math For America - https://www.mathforamerica.org/ NUMBERPHILE Website: http://www.numberphile.com/ Numberphile on Facebook: http://www.facebook.com/numberphile Numberphile tweets: https://twitter.com/numberphile Subscribe: http://bit.ly/Numberphile_Sub Videos by Brady Ha
Inca Knot Numbers - Numberphile Inca Knot Numbers - Numberphile
5 months ago En
Alex Bellos discusses how the Incans used knots in string (Quipu) to record numbers. Check out Brilliant (get 20% off their premium service): https://brilliant.org/numberphile (sponsor) More links & stuff in full description below ↓↓↓ Check out the Language Lover's Puzzle Book) on Amazon: https://amzn.to/3oU0wjT Or a signed version from Maths Gear: https://bit.ly/Language_Lovers More Alex on Numberphile: http://bit.ly/Bellos_Playlist Alex's own website with links to all his stuff: http://www.alexbellos.com See Alex on another forgotten number system: https://youtu.be/9p55Qgt7Ciw The Ancient Quipu - L Leland Locke: https://amzn.to/37RJfzZ Numberphile is supported by the Mathematical Sciences Research Institute (MSRI): http://bit.ly/MSRINumberphile We are also supported by Science Sandbox, a Simons Foundation initiative dedicated to engaging everyone with the process of science. https://www.simonsfoundation.org/outreach/science-sandbox/ And support from Math For America - https://www.mathforamerica.org
How to build a Giant Dome - Numberphile How to build a Giant Dome - Numberphile
5 months ago En
Tom Crawford speaks about domes, curves, and catenaries. Check out http://KiwiCo.com/Numberphile for 50% off your first month of any subscription. More links & stuff in full description below ↓↓↓ Tom Crawford: https://tomrocksmaths.com/ More videos with Tom: http://bit.ly/Crawford_Videos Numberphile is supported by the Mathematical Sciences Research Institute (MSRI): http://bit.ly/MSRINumberphile We are also supported by Science Sandbox, a Simons Foundation initiative dedicated to engaging everyone with the process of science. https://www.simonsfoundation.org/outreach/science-sandbox/ And support from Math For America - https://www.mathforamerica.org/ NUMBERPHILE Website: http://www.numberphile.com/ Numberphile on Facebook: http://www.facebook.com/numberphile Numberphile tweets: https://twitter.com/numberphile Subscribe: http://bit.ly/Numberphile_Sub Videos by Brady Haran Patreon: http://www.patreon.com/numberphile Numberphile T-Shirts and Merch: https://teespring.com/stores/numberphile Brady's vide
2.920050977316 - Numberphile 2.920050977316 - Numberphile
5 months ago En
Dr James Grime is discussing a new prime-generating constant. Check out Brilliant (get 20% off their premium service): https://brilliant.org/numberphile (sponsor) More links & stuff in full description below ↓↓↓ Extra footage from this interview: https://youtu.be/yXPhq-36Eq4 More James Grime videos: http://bit.ly/grimevideos James Grime's website: https://www.singingbanana.com Mills' Constant video: https://youtu.be/6ltrPVPEwfo A Prime-Representing Constant by Dylan Fridman, Juli Garbulsky, Bruno Glecer, James Grime & Massi Tron Florentin: https://www.tandfonline.com/doi/abs/10.1080/00029890.2019.1530554 Numberphile is supported by the Mathematical Sciences Research Institute (MSRI): http://bit.ly/MSRINumberphile We are also supported by Science Sandbox, a Simons Foundation initiative dedicated to engaging everyone with the process of science. https://www.simonsfoundation.org/outreach/science-sandbox/ And support from Math For America - https://www.mathforamerica.org/ NUMBERPHILE Website: http://www.
How do brains count? - Numberphile How do brains count? - Numberphile
6 months ago En
Professor Brian Butterworth is a neuroscientist who specialises in numbers and mathematics. More from this interview at https://youtu.be/FCS4b3OjVJM and earlier videos with him at: https://bit.ly/Brian_Butterworth More links & stuff in full description below ↓↓↓ Brian's website: https://www.mathematicalbrain.com Brian Butterworth playlist: https://bit.ly/Brian_Butterworth Discussed papers... Auditory midbrain neurons that count: https://pubmed.ncbi.nlm.nih.gov/12219094/ Mapping human temporal and parietal neuronal population activity and functional coupling during mathematical cognition: https://www.pnas.org/content/113/46/E7277 Numberphile is supported by the Mathematical Sciences Research Institute (MSRI): http://bit.ly/MSRINumberphile We are also supported by Science Sandbox, a Simons Foundation initiative dedicated to engaging everyone with the process of science. https://www.simonsfoundation.org/outreach/science-sandbox/ And support from Math For America - https://www.mathforamerica.org/ NUMBERPHI
The Forgotten Number System - Numberphile The Forgotten Number System - Numberphile
6 months ago En
Featuring author Alex Bellos - check his books (including the Language Lover's Puzzle Book) on Amazon: https://amzn.to/3oU0wjT More links & stuff in full description below ↓↓↓ More Alex on Numberphile: http://bit.ly/Bellos_Playlist Alex's own website with links to all his stuff: http://www.alexbellos.com Numberphile is supported by the Mathematical Sciences Research Institute (MSRI): http://bit.ly/MSRINumberphile We are also supported by Science Sandbox, a Simons Foundation initiative dedicated to engaging everyone with the process of science. https://www.simonsfoundation.org/outreach/science-sandbox/ And support from Math For America - https://www.mathforamerica.org/ NUMBERPHILE Website: http://www.numberphile.com/ Numberphile on Facebook: http://www.facebook.com/numberphile Numberphile tweets: https://twitter.com/numberphile Subscribe: http://bit.ly/Numberphile_Sub Videos by Brady Haran Patreon: http://www.patreon.com/numberphile Numberphile T-Shirts and Merch: https://teespring.com/stores/number
Bomb Blast Radius - Numberphile Bomb Blast Radius - Numberphile
6 months ago En
Featuring Tom Crawford. More links & stuff in full description below ↓↓↓ Tom Crawford website: https://tomrocksmaths.com/ More of our videos with Tom at: http://bit.ly/Crawford_Videos Atom bombs on Periodic Videos: https://youtu.be/QLZMzsRB86E Numberphile is supported by the Mathematical Sciences Research Institute (MSRI): http://bit.ly/MSRINumberphile We are also supported by Science Sandbox, a Simons Foundation initiative dedicated to engaging everyone with the process of science. https://www.simonsfoundation.org/outreach/science-sandbox/ And support from Math For America - https://www.mathforamerica.org/ NUMBERPHILE Website: http://www.numberphile.com/ Numberphile on Facebook: http://www.facebook.com/numberphile Numberphile tweets: https://twitter.com/numberphile Subscribe: http://bit.ly/Numberphile_Sub Videos by Brady Haran Animation by Pete McPartlan Patreon: http://www.patreon.com/numberphile Numberphile T-Shirts and Merch: https://teespring.com/stores/numberphile Brady's videos subreddit: ht
Colouring Knots - Numberphile Colouring Knots - Numberphile
7 months ago En
Featuring Professor Sylvain Cappell from NYU. Extra footage at: https://youtu.be/NV3EeagyU0Y More links & stuff in full description below ↓↓↓ Merch based on this video: https://teespring.com/numberphile-knots And here: https://teespring.com/numberphile-figure-eight Numberphile is supported by the Mathematical Sciences Research Institute (MSRI): http://bit.ly/MSRINumberphile We are also supported by Science Sandbox, a Simons Foundation initiative dedicated to engaging everyone with the process of science. https://www.simonsfoundation.org/outreach/science-sandbox/ And support from Math For America - https://www.mathforamerica.org/ NUMBERPHILE Website: http://www.numberphile.com/ Numberphile on Facebook: http://www.facebook.com/numberphile Numberphile tweets: https://twitter.com/numberphile Subscribe: http://bit.ly/Numberphile_Sub Video by Brady Haran and Pete McPartlan Patreon: http://www.patreon.com/numberphile Numberphile T-Shirts and Merch: https://teespring.com/stores/numberphile Brady's videos sub
Poncelet's Porism - Numberphile Poncelet's Porism - Numberphile
7 months ago En
Featuring Daniel Litt. Check out Brilliant (get 20% off their premium service): https://brilliant.org/numberphile (sponsor) More links & stuff in full description below ↓↓↓ Daniel Litt: https://www.daniellitt.com/ See Daniel previously on Numberphile: https://youtu.be/eYfpSAxGakI Numberphile is supported by the Mathematical Sciences Research Institute (MSRI): http://bit.ly/MSRINumberphile We are also supported by Science Sandbox, a Simons Foundation initiative dedicated to engaging everyone with the process of science. https://www.simonsfoundation.org/outreach/science-sandbox/ And support from Math For America - https://www.mathforamerica.org/ NUMBERPHILE Website: http://www.numberphile.com/ Numberphile on Facebook: http://www.facebook.com/numberphile Numberphile tweets: https://twitter.com/numberphile Subscribe: http://bit.ly/Numberphile_Sub Video by Brady Haran and Pete McPartlan Patreon: http://www.patreon.com/numberphile Numberphile T-Shirts and Merch: https://teespring.com/stores/numberphile Br
Predators and Prey - Numberphile Predators and Prey - Numberphile
8 months ago En
Tom Crawford talks foxes and rabbits. More links & stuff in full description below ↓↓↓ More of Tom on Numberphile: http://bit.ly/TomPlaylist Tom's website: https://tomrocksmaths.com Numberphile is supported by the Mathematical Sciences Research Institute (MSRI): http://bit.ly/MSRINumberphile We are also supported by Science Sandbox, a Simons Foundation initiative dedicated to engaging everyone with the process of science. https://www.simonsfoundation.org/outreach/science-sandbox/ And support from Math For America - https://www.mathforamerica.org/ NUMBERPHILE Website: http://www.numberphile.com/ Numberphile on Facebook: http://www.facebook.com/numberphile Numberphile tweets: https://twitter.com/numberphile Subscribe: http://bit.ly/Numberphile_Sub Videos by Brady Haran Animated by Pete McPartlan Patreon: http://www.patreon.com/numberphile Numberphile T-Shirts and Merch: https://teespring.com/stores/numberphile Brady's videos subreddit: http://www.reddit.com/r/BradyHaran/ Brady's latest videos across
Statistics, Storks, and Babies - Numberphile Statistics, Storks, and Babies - Numberphile
8 months ago En
Author and economist Tim Harford talking statistics - more from this interview at https://youtu.be/NOTN2FsdUHQ More video links & book stuff in full description below ↓↓↓ Buy Tim's new book "How To Make The World Add Up" (SIGNED COPIES at no extra cost) from Maths Gear: http://bit.ly/World_Add_Up Tim Harford books on Amazon: https://amzn.to/3lbt2vt And Tim's own website: https://timharford.com Also catch Tim in this recent Standupmaths video: https://youtu.be/esC4HB-AjgI Numberphile is supported by the Mathematical Sciences Research Institute (MSRI): http://bit.ly/MSRINumberphile We are also supported by Science Sandbox, a Simons Foundation initiative dedicated to engaging everyone with the process of science. https://www.simonsfoundation.org/outreach/science-sandbox/ And support from Math For America - https://www.mathforamerica.org/ NUMBERPHILE Website: http://www.numberphile.com/ Numberphile on Facebook: http://www.facebook.com/numberphile Numberphile tweets: https://twitter.com/numberphile Subscrib
The Brussels Choice - Numberphile The Brussels Choice - Numberphile
8 months ago En
Neil Sloane from the OEIS discusses the Choix de Bruxelles. Check out Brilliant (get 20% off their premium service): https://brilliant.org/numberphile (sponsor) More links & stuff in full description below ↓↓↓ Neil Sloane founded the runs the OEIS: https://oeis.org/ Brussels Choice on the OEIS: https://oeis.org/A323454 Neil Sloane playlist on Numberphile: http://bit.ly/Sloane_Numberphile Neil Sloane on the Numberphile podcast: https://youtu.be/mNk_MfFKnuY Numberphile is supported by the Mathematical Sciences Research Institute (MSRI): http://bit.ly/MSRINumberphile We are also supported by Science Sandbox, a Simons Foundation initiative dedicated to engaging everyone with the process of science. https://www.simonsfoundation.org/outreach/science-sandbox/ And support from Math For America - https://www.mathforamerica.org/ NUMBERPHILE Website: http://www.numberphile.com/ Numberphile on Facebook: http://www.facebook.com/numberphile Numberphile tweets: https://twitter.com/numberphile Subscribe: http://bit.ly
569936821221962380720 - Numberphile 569936821221962380720 - Numberphile
8 months ago En
A number of galactic proportions... See more #MegaFavNumbers on this playlist - https://bit.ly/MegaFavNumbers - and read below to contribute your own. More links & stuff in full description below ↓↓↓ See our full collection of video on the sum of three cubes at: http://bit.ly/SumOfCubes (*) the cube (which we depicted quite loosely and artistically, of course) would in all likelihood collapse to form a black hole because of the incredible mass contained with the radius #MegaFavNumbers This video was part of the MegaFavNumbers collaboration between Math YouTubers celebrating favourite numbers bigger than one million. Make a video about YOUR favourite mega-number. Upload your videos to YouTube with the hashtag #MegaFavNumbers and with MegaFavNumbers in the title, and your video will be added to the megafavnumbers playlist. https://bit.ly/MegaFavNumbers Submissions close Wednesday, 2nd September, 2020. SUM OF THREE CUBES T-SHIRT: https://teespring.com/42-sum-cubes-numberphile Thanks to Prof Mike Merrifield
Squares and Tilings - Numberphile Squares and Tilings - Numberphile
9 months ago En
With 2006 Fields Medallist Andrei Okounkov More links & stuff in full description below ↓↓↓ Professor Okounkov website: http://www.math.columbia.edu/~okounkov/ Numberphile Field Medallist Playlist: https://bit.ly/Fields_Playlist Roger Penrose on the Numberphile Podcast: https://youtu.be/JiDWGbsVEno Numberphile is supported by the Mathematical Sciences Research Institute (MSRI): http://bit.ly/MSRINumberphile We are also supported by Science Sandbox, a Simons Foundation initiative dedicated to engaging everyone with the process of science. https://www.simonsfoundation.org/outreach/science-sandbox/ And support from Math For America - https://www.mathforamerica.org/ NUMBERPHILE Website: http://www.numberphile.com/ Numberphile on Facebook: http://www.facebook.com/numberphile Numberphile tweets: https://twitter.com/numberphile Subscribe: http://bit.ly/Numberphile_Sub Videos by Brady Haran Editing and animation: Pete McPartlan Patreon: http://www.patreon.com/numberphile Numberphile T-Shirts and Merch: http
Dungeon Numbers - Numberphile Dungeon Numbers - Numberphile
9 months ago En
Featuring Neil Sloane from the OEIS. Check out Brilliant (get 20% off their premium service): https://brilliant.org/numberphile (sponsor)... More links & stuff in full description below ↓↓↓ Part 2: https://youtu.be/HFeKdMf01rQ Neil Sloane is the founder of the The On-Line Encyclopedia of Integer Sequences. Visit it here: https://oeis.org More Neil Sloane on Numberphile: http://bit.ly/Sloane_Numberphile Numberphile is supported by the Mathematical Sciences Research Institute (MSRI): http://bit.ly/MSRINumberphile We are also supported by Science Sandbox, a Simons Foundation initiative dedicated to engaging everyone with the process of science. https://www.simonsfoundation.org/outreach/science-sandbox/ And support from Math For America - https://www.mathforamerica.org/ NUMBERPHILE Website: http://www.numberphile.com/ Numberphile on Facebook: http://www.facebook.com/numberphile Numberphile tweets: https://twitter.com/numberphile Subscribe: http://bit.ly/Numberphile_Sub Videos by Brady Haran Animation by
Hat Problems - Numberphile Hat Problems - Numberphile
10 months ago En
Featuring Joe Buhler. See part 2 of this interview: https://youtu.be/4YG4QnhVV7A More links & stuff in full description below ↓↓↓ An Introduction to Infinite Hat Problems (paper): https://bit.ly/31OeWZK See also Spheres and Code Words with James Grime: https://youtu.be/T46FTuHnbvY Numberphile is supported by the Mathematical Sciences Research Institute (MSRI): http://bit.ly/MSRINumberphile We are also supported by Science Sandbox, a Simons Foundation initiative dedicated to engaging everyone with the process of science. https://www.simonsfoundation.org/outreach/science-sandbox/ And support from Math For America - https://www.mathforamerica.org/ NUMBERPHILE Website: http://www.numberphile.com/ Numberphile on Facebook: http://www.facebook.com/numberphile Numberphile tweets: https://twitter.com/numberphile Subscribe: http://bit.ly/Numberphile_Sub Videos by Brady Haran Patreon: http://www.patreon.com/numberphile Numberphile T-Shirts and Merch: https://teespring.com/stores/numberphile Brady's videos sub
Beautiful Trigonometry - Numberphile Beautiful Trigonometry - Numberphile
11 months ago En
Featuring Ben Sparks. Check out Brilliant (get 20% off their premium service): https://brilliant.org/numberphile (sponsor) More links & stuff in full description below ↓↓↓ Catch a more in-depth interview with Ben on our Numberphile Podcast: https://youtu.be/-tGni9ObJWk Ben's website: https://www.bensparks.co.uk More Numberphile videos with Ben Sparks: http://bit.ly/Sparks_Playlist Explore this topic further with this Geogebra file from Ben: https://www.geogebra.org/m/S2W46Thv Catch Ben on the latest Numberphile Podcast: https://youtu.be/-tGni9ObJWk More podcast episodes: http://bit.ly/numberphile_podcast Numberphile is supported by the Mathematical Sciences Research Institute (MSRI): http://bit.ly/MSRINumberphile We are also supported by Science Sandbox, a Simons Foundation initiative dedicated to engaging everyone with the process of science. https://www.simonsfoundation.org/outreach/science-sandbox/ And support from Math For America - https://www.mathforamerica.org/ NUMBERPHILE Website: http://www.
A Surprising Pi and 5 - Numberphile A Surprising Pi and 5 - Numberphile
11 months ago En
Ben Sparks discusses 5 and Pi. Catch a more in-depth interview with Ben on our Numberphile Podcast: https://youtu.be/-tGni9ObJWk Check out Brilliant (get 20% off their premium service): https://brilliant.org/numberphile (sponsor) More links & stuff in full description below ↓↓↓ Ben's website: https://www.bensparks.co.uk More Numberphile videos with Ben Sparks: http://bit.ly/Sparks_Playlist Catch Ben on the latest Numberphile Podcast: https://youtu.be/-tGni9ObJWk More podcast episodes: http://bit.ly/numberphile_podcast Numberphile is supported by the Mathematical Sciences Research Institute (MSRI): http://bit.ly/MSRINumberphile We are also supported by Science Sandbox, a Simons Foundation initiative dedicated to engaging everyone with the process of science. https://www.simonsfoundation.org/outreach/science-sandbox/ And support from Math For America - https://www.mathforamerica.org/ NUMBERPHILE Website: http://www.numberphile.com/ Numberphile on Facebook: http://www.facebook.com/numberphile Numberphil
Matrix Factorization - Numberphile Matrix Factorization - Numberphile
12 months ago En
Featuring Professor David Eisenbud, director of the Mathematical Sciences Research Institute (MSRI). More links & stuff in full description below ↓↓↓ More videos with Professor Eisenbud: http://bit.ly/Eisenbud_Videos More form the Professor on our podcast: https://youtu.be/9y1BGvnTyQA The 17-gon: https://youtu.be/87uo2TPrsl8 Numberphile is supported by the Mathematical Sciences Research Institute (MSRI): http://bit.ly/MSRINumberphile We are also supported by Science Sandbox, a Simons Foundation initiative dedicated to engaging everyone with the process of science. https://www.simonsfoundation.org/outreach/science-sandbox/ And support from Math For America - https://www.mathforamerica.org/ NUMBERPHILE Website: http://www.numberphile.com/ Numberphile on Facebook: http://www.facebook.com/numberphile Numberphile tweets: https://twitter.com/numberphile Subscribe: http://bit.ly/Numberphile_Sub Videos by Brady Haran Patreon: http://www.patreon.com/numberphile Numberphile T-Shirts and Merch: https://teesprin
Euler Squares - Numberphile Euler Squares - Numberphile
2 years ago En
Also known as Graeco-Latin Squares. Featuring Dr James Grime. Extra footage at: https://youtu.be/HuIrUeODtVQ Patreon: http://www.patreon.com/numberphile More links & stuff in full description below ↓↓↓ Dr James Grime's website: https://www.singingbanana.com More James Grime videos on Numberphile: http://bit.ly/grimevideos This video was coincidentally released the day of this news: https://www.news18.com/news/opinion/indian-maths-genius-who-debunked-eulers-theory-made-it-to-nyc-front-page-dies-at-103-2611193.html  Numberphile is supported by the Mathematical Sciences Research Institute (MSRI): http://bit.ly/MSRINumberphile We are also supported by Science Sandbox, a Simons Foundation initiative dedicated to engaging everyone with the process of science. https://www.simonsfoundation.org/outreach/science-sandbox/ And support from Math For America - https://www.mathforamerica.org/ NUMBERPHILE Website: http://www.numberphile.com/ Numberphile on Facebook: http://www.facebook.com/numberphile Numberphile twee
Lewis Carroll's Pillow Problem - Numberphile Lewis Carroll's Pillow Problem - Numberphile
2 years ago En
Featuring Alex Bellos. Check out Brilliant (get 20% off their premium service): https://brilliant.org/numberphile (sponsor) More links & stuff in full description below ↓↓↓ More videos with Alex Bellos: http://bit.ly/Bellos_Playlist Alex's website: http://www.alexbellos.com And his books on Amazon (including "So You Think You've Got Problems" in which this puzzle features): https://amzn.to/3cRViyf and https://amzn.to/2xfDUUZ Monty Hall Problem: http://bit.ly/MontyHallProb Numberphile is supported by the Mathematical Sciences Research Institute (MSRI): http://bit.ly/MSRINumberphile We are also supported by Science Sandbox, a Simons Foundation initiative dedicated to engaging everyone with the process of science. https://www.simonsfoundation.org/outreach/science-sandbox/ And support from Math For America - https://www.mathforamerica.org/ NUMBERPHILE Website: http://www.numberphile.com/ Numberphile on Facebook: http://www.facebook.com/numberphile Numberphile tweets: https://twitter.com/numberphile Subsc
Why is this Puzzle Impossible? - Numberphile Why is this Puzzle Impossible? - Numberphile
2 years ago En
Don't try this at home - it's impossible... Professor Steven Bradlow explains. More links & stuff in full description below ↓↓↓ Steven Bradlow: https://math.illinois.edu/directory/profile/bradlow Buy the puzzle on Amazon (affiliate link): https://amzn.to/2yt8MBA Numberphile is supported by the Mathematical Sciences Research Institute (MSRI): http://bit.ly/MSRINumberphile We are also supported by Science Sandbox, a Simons Foundation initiative dedicated to engaging everyone with the process of science. https://www.simonsfoundation.org/outreach/science-sandbox/ And support from Math For America - https://www.mathforamerica.org/ NUMBERPHILE Website: http://www.numberphile.com/ Numberphile on Facebook: http://www.facebook.com/numberphile Numberphile tweets: https://twitter.com/numberphile Subscribe: http://bit.ly/Numberphile_Sub Video by Pete McPartlan and Brady Haran Patreon: http://www.patreon.com/numberphile Numberphile T-Shirts and Merch: https://teespring.com/stores/numberphile Brady's videos subre
The Daddy of Big Numbers (Rayo's Number) - Numberphile The Daddy of Big Numbers (Rayo's Number) - Numberphile
2 years ago En
Professor Tony Padilla is back with another epic number. Our Big Number playlist of previous videos: http://bit.ly/Big_Numbers More links & stuff in full description below ↓↓↓ Busy Beavers on Computerphile: https://youtu.be/CE8UhcyJS0I With thanks to Agustín Rayo himself. Read more from Prof Rayo at: http://web.mit.edu/arayo/www/bignums.html And see his website at: https://arayo.scripts.mit.edu/home/ Tony Padilla: https://twitter.com/DrTonyPadilla Numberphile is supported by the Mathematical Sciences Research Institute (MSRI): http://bit.ly/MSRINumberphile We are also supported by Science Sandbox, a Simons Foundation initiative dedicated to engaging everyone with the process of science. https://www.simonsfoundation.org/outreach/science-sandbox/ And support from Math For America - https://www.mathforamerica.org/ NUMBERPHILE Website: http://www.numberphile.com/ Numberphile on Facebook: http://www.facebook.com/numberphile Numberphile tweets: https://twitter.com/numberphile Subscribe: http://bit.ly/Numbe
Impossible Squares - Numberphile Impossible Squares - Numberphile
2 years ago En
Ben Sparks shows us a simple problem that takes some fascinating twists. Check out Brilliant (get 20% off their premium service): https://brilliant.org/numberphile (sponsor) More links & stuff in full description below ↓↓↓ More videos with Ben Sparks: http://bit.ly/Sparks_Playlist Catch a more in-depth interview with Ben on our Numberphile Podcast: https://youtu.be/-tGni9ObJWk Ben's website: https://www.bensparks.co.uk Numberphile is supported by the Mathematical Sciences Research Institute (MSRI): http://bit.ly/MSRINumberphile We are also supported by Science Sandbox, a Simons Foundation initiative dedicated to engaging everyone with the process of science. https://www.simonsfoundation.org/outreach/science-sandbox/ And support from Math For America - https://www.mathforamerica.org/ NUMBERPHILE Website: http://www.numberphile.com/ Numberphile on Facebook: http://www.facebook.com/numberphile Numberphile tweets: https://twitter.com/numberphile Subscribe: http://bit.ly/Numberphile_Sub Videos by Brady Ha
Mathematics and Coronavirus - Numberphile Mathematics and Coronavirus - Numberphile
2 years ago En
Featuring Kit Yates... The longer podcast version: https://youtu.be/5OPaDnJ3tm8 Or here: https://www.numberphile.com/podcast/kit-yeates-coronavirus or on your podcast player! More links & stuff in full description below ↓↓↓ Support our videos and podcasts on Patreon: Patreon: http://www.patreon.com/numberphile Kit Yates website - https://kityates.com Kit on Twitter - https://twitter.com/Kit_Yates_Maths The Royal Society's call to arms for mathematicians - https://royalsociety.org/news/2020/03/Urgent-call-epidemic-modelling/ NHS advice on Coronavirus and COVID-19 - https://www.nhs.uk/conditions/coronavirus-covid-19/ Ben Sparks on Numberphile - The Coronavirus Curve - https://www.youtube.com/watch?v=k6nLfCbAzgo 3blue1brown on the exponential growth of epidemics - https://youtu.be/Kas0tIxDvrg Simulating an epidemic with 3blue1brown - https://www.youtube.com/watch?v=gxAaO2rsdIs Tom Crawford on the SIR Model - https://youtu.be/NKMHhm2Zbkw Kurzgesagt on COVID-19 - https://youtu.be/BtN-goy9VOY Extended
The Coronavirus Curve - Numberphile The Coronavirus Curve - Numberphile
2 years ago En
Ben Sparks explains (and codes) the so-called SIR Model being used to predict the spread of cornavirus (COVID-19). More links & stuff in full description below ↓↓↓ National Health Service (UK) advice on Coronavirus: https://www.nhs.uk/conditions/coronavirus-covid-19/ Catch a more in-depth interview with Ben on our Numberphile Podcast: https://youtu.be/-tGni9ObJWk Ben Sparks: https://www.bensparks.co.uk Use the Geogebra file Ben created for this video: https://www.geogebra.org/m/nbjfjtpv Another good file courtesy of Juan Carlos Ponce Campuzano: https://www.geogebra.org/m/utbemrca SOME OTHER YOUTUBERS ON THIS TOPIC... 3blue1brown on the exponential growth of epidemics: https://youtu.be/Kas0tIxDvrg Tom Crawford on the SIR Model: https://youtu.be/NKMHhm2Zbkw Kurzgesagt on COVID-19: https://youtu.be/BtN-goy9VOY Washington Post simulator: https://www.washingtonpost.com/graphics/2020/world/corona-simulator/ Extended presentation by Nick Jewell for MSRI: https://youtu.be/MZ957qhzcjI More videos with Ben Spa
3 Ways to Draw Squares Inside Triangles - Numberphile 3 Ways to Draw Squares Inside Triangles - Numberphile
2 years ago En
Calvin Lin shows us three ways to inscribe a square inside a triangle. More links & stuff in full description below ↓↓↓ More good triangle videos on Numberphile: https://bit.ly/TriangleVideos Calvin works at Brilliant, a regular sponsor of Numberphile videos. However this episode was not sponsored in any way - we just wanted to make it! Numberphile is supported by the Mathematical Sciences Research Institute (MSRI): http://bit.ly/MSRINumberphile We are also supported by Science Sandbox, a Simons Foundation initiative dedicated to engaging everyone with the process of science. https://www.simonsfoundation.org/outreach/science-sandbox/ And support from Math For America - https://www.mathforamerica.org/ NUMBERPHILE Website: http://www.numberphile.com/ Numberphile on Facebook: http://www.facebook.com/numberphile Numberphile tweets: https://twitter.com/numberphile Subscribe: http://bit.ly/Numberphile_Sub Videos by Brady Haran Patreon: http://www.patreon.com/numberphile Numberphile T-Shirts and Merch: ht
Mesolabe Compass and Square Roots - Numberphile Mesolabe Compass and Square Roots - Numberphile
2 years ago En
Johnny Ball on the "often missed" Hippocrates of Chios. Check out Brilliant (get 20% off their premium service): https://brilliant.org/numberphile (sponsor) More links & stuff in full description below ↓↓↓ More on Johnny Ball, including his books and live shows: https://www.johnnyball.co.uk See Johnny discuss Russian multiplication: https://youtu.be/HJ_PP5rqLg0 Numberphile is supported by the Mathematical Sciences Research Institute (MSRI): http://bit.ly/MSRINumberphile We are also supported by Science Sandbox, a Simons Foundation initiative dedicated to engaging everyone with the process of science. https://www.simonsfoundation.org/outreach/science-sandbox/ And support from Math For America - https://www.mathforamerica.org/ NUMBERPHILE Website: http://www.numberphile.com/ Numberphile on Facebook: http://www.facebook.com/numberphile Numberphile tweets: https://twitter.com/numberphile Subscribe: http://bit.ly/Numberphile_Sub Videos by Brady Haran Patreon: http://www.patreon.com/numberphile Numberphile
Random Fibonacci Numbers - Numberphile Random Fibonacci Numbers - Numberphile
2 years ago En
Dr James Grime on random Fibonacci Sequences... Extra footage: https://youtu.be/F0C4U7Q5yXU More links & stuff in full description below ↓↓↓ Fibonacci Numbers in the Mandelbrot Set: https://youtu.be/4LQvjSf6SSw More James Grime videos: http://bit.ly/grimevideos Our podcast interview with James Grime: https://youtu.be/9gQzkKifd3U or https://apple.co/2HsUMKb James Grime website: https://www.singingbanana.com Numberphile is supported by the Mathematical Sciences Research Institute (MSRI): http://bit.ly/MSRINumberphile We are also supported by Science Sandbox, a Simons Foundation initiative dedicated to engaging everyone with the process of science. https://www.simonsfoundation.org/outreach/science-sandbox/ And support from Math For America - https://www.mathforamerica.org/ NUMBERPHILE Website: http://www.numberphile.com/ Numberphile on Facebook: http://www.facebook.com/numberphile Numberphile tweets: https://twitter.com/numberphile Subscribe: http://bit.ly/Numberphile_Sub Videos by Brady Haran Patreon:
How to Fill a Klein Bottle - Numberphile How to Fill a Klein Bottle - Numberphile
2 years ago En
In a 3D world, it's possible to fill 4D Klein Bottles - featuring Cliff Stoll. More Cliff videos: http://bit.ly/Cliff_Videos More links & stuff in full description below ↓↓↓ More Klein Bottle videos: http://bit.ly/KleinBottles You can buy a bottle from Cliff: https://www.kleinbottle.com See our videos with the Pope's Astronomer (and good friend of Cliff) Brother Guy Consolmagno: SPACE ROCKS https://youtu.be/5OI4wb2XIZc VATICAN TELESCOPES https://youtu.be/ccoGKAL6Qas THE POPE’S ASTRONOMER https://youtu.be/Z0DAKaR16cY Cliff notes: Cliff advises not to rely on his memory for the volume of a sphere. It's really 4/3 π r^3. Cliff also says that using a tube to break the vapor lock is challenging. Straws (even flexo-straws) kink when bent around narrow hairpin curves. And most flexible tubes (especially aquarium air tubing) have high friction against glass, so they're difficult to thread along the curve. Numberphile is supported by the Mathematical Sciences Research Institute (MSRI): http://bit.ly/MSRINu
The 17-Klein Bottle - Numberphile The 17-Klein Bottle - Numberphile
2 years ago En
17 Klein Bottles become 1 - featuring Cliff Stoll and the glasswork of Lucas Clarke. More links & stuff in full description below ↓↓↓ More Cliff videos: http://bit.ly/Cliff_Videos More Klein Bottle videos: http://bit.ly/KleinBottles Buy glassware from Cliff (if you dare): https://www.kleinbottle.com CORRECTION (message via Cliff): At 43 seconds (recycling symbol) I goofed here. That's a single-half-twist. I'm properly one-sidedly chagrined. Numberphile is supported by the Mathematical Sciences Research Institute (MSRI): http://bit.ly/MSRINumberphile We are also supported by Science Sandbox, a Simons Foundation initiative dedicated to engaging everyone with the process of science. https://www.simonsfoundation.org/outreach/science-sandbox/ And support from Math For America - https://www.mathforamerica.org/ NUMBERPHILE Website: http://www.numberphile.com/ Numberphile on Facebook: http://www.facebook.com/numberphile Numberphile tweets: https://twitter.com/numberphile Subscribe: http://bit.ly/Numberphile
Strings and Loops within Pi - Numberphile Strings and Loops within Pi - Numberphile
2 years ago En
Tom Crawford from Oxford University looks at self-locating strings and interesting loops. Get a Piece of Pi: https://www.patreon.com/posts/piece-of-pi-for-33529079 More links & stuff in full description below ↓↓↓ More of Tom on Numberphile: http://bit.ly/TomPlaylist See our Pi Playlist: http://bit.ly/PiPlaylist Tom's website: https://tomrocksmaths.com The Pi Search Page: https://www.angio.net/pi/ OEIS sequences and pages of interest: https://oeis.org/A057680 https://oeis.org/A064810  Numberphile is supported by the Mathematical Sciences Research Institute (MSRI): http://bit.ly/MSRINumberphile We are also supported by Science Sandbox, a Simons Foundation initiative dedicated to engaging everyone with the process of science. https://www.simonsfoundation.org/outreach/science-sandbox/ And support from Math For America - https://www.mathforamerica.org/ NUMBERPHILE Website: http://www.numberphile.com/ Numberphile on Facebook: http://www.facebook.com/numberphile Numberphile tweets: https://twitter.com/num
Tentacles Akimbo (with Cliff Stoll) - Numberphile Tentacles Akimbo (with Cliff Stoll) - Numberphile
2 years ago En
Cliff Stoll and glass-blown topology - interview continues at https://youtu.be/Iv71QEId4ck --- We're uploading Cliff videos like this for the next three Sundays. (with other stuff during the week!) More links & stuff in full description below ↓↓↓ More videos with Cliff: http://bit.ly/Cliff_Videos Cliff Stoll's Klein Bottle business: https://www.kleinbottle.com Our thanks to glass blower Lucas Clarke and the students David O’Connor, Shane Gibbons and Mikkel Frøland. Numberphile is supported by the Mathematical Sciences Research Institute (MSRI): http://bit.ly/MSRINumberphile We are also supported by Science Sandbox, a Simons Foundation initiative dedicated to engaging everyone with the process of science. https://www.simonsfoundation.org/outreach/science-sandbox/ And support from Math For America - https://www.mathforamerica.org/ NUMBERPHILE Website: http://www.numberphile.com/ Numberphile on Facebook: http://www.facebook.com/numberphile Numberphile tweets: https://twitter.com/numberphile Subscribe:
Pentagons and the Golden Ratio - Numberphile Pentagons and the Golden Ratio - Numberphile
2 years ago En
Continuing on from Zvezda's previous video about Ptolemey's Theorem (see: https://youtu.be/bJOuzqu3MUQ) now we use it to prove some cool stuff with pentagons and equilateral triangles. More links & stuff in full description below ↓↓↓ Zvezda's Numberphile playlist: http://bit.ly/zvezda_videos Zvezda's webpage: https://math.berkeley.edu/~stankova/ Golden Ratio: https://youtu.be/sj8Sg8qnjOg Epic Circles: https://youtu.be/sG_6nlMZ8f4 Triangle Magic Highway: https://youtu.be/wVH4MS6v23U Numberphile is supported by the Mathematical Sciences Research Institute (MSRI): http://bit.ly/MSRINumberphile We are also supported by Science Sandbox, a Simons Foundation initiative dedicated to engaging everyone with the process of science. https://www.simonsfoundation.org/outreach/science-sandbox/ And support from Math For America - https://www.mathforamerica.org/ NUMBERPHILE Website: http://www.numberphile.com/ Numberphile on Facebook: http://www.facebook.com/numberphile Numberphile tweets: https://twitter.com/number
A Miraculous Proof (Ptolemy's Theorem) - Numberphile A Miraculous Proof (Ptolemy's Theorem) - Numberphile
2 years ago En
Featuring Zvezdelina Stankova... Want more? Part 2 (bringing in Pentagons and the Golden Ratio) is at: https://youtu.be/o3QBgkQi_HA More links & stuff in full description below ↓↓↓ Zvezda's Numberphile playlist: http://bit.ly/zvezda_videos Zvezda's webpage: https://math.berkeley.edu/~stankova/ Epic Circles: https://youtu.be/sG_6nlMZ8f4 Triangle Magic Highway: https://youtu.be/wVH4MS6v23U Numberphile is supported by the Mathematical Sciences Research Institute (MSRI): http://bit.ly/MSRINumberphile We are also supported by Science Sandbox, a Simons Foundation initiative dedicated to engaging everyone with the process of science. https://www.simonsfoundation.org/outreach/science-sandbox/ And support from Math For America - https://www.mathforamerica.org/ NUMBERPHILE Website: http://www.numberphile.com/ Numberphile on Facebook: http://www.facebook.com/numberphile Numberphile tweets: https://twitter.com/numberphile Subscribe: http://bit.ly/Numberphile_Sub Videos by Brady Haran Additional editing and ani
Russian Multiplication - Numberphile Russian Multiplication - Numberphile
2 years ago En Ru
Johnny Ball on Russian and Egyptian Multiplication. Check out Brilliant (get 20% off their premium service): https://brilliant.org/numberphile (sponsor) More links & stuff in full description below ↓↓↓ More on Johnny Ball, including his books and live shows: https://www.johnnyball.co.uk Russian multiplication is also known as Ethiopian multiplication. Why Use Binary? (on Computerphile) - https://youtu.be/thrx3SBEpL8 Discuss on Brady's subreddit: https://redd.it/eyrrh9 Numberphile is supported by the Mathematical Sciences Research Institute (MSRI): http://bit.ly/MSRINumberphile We are also supported by Science Sandbox, a Simons Foundation initiative dedicated to engaging everyone with the process of science. https://www.simonsfoundation.org/outreach/science-sandbox/ And support from Math For America - https://www.mathforamerica.org/ NUMBERPHILE Website: http://www.numberphile.com/ Numberphile on Facebook: http://www.facebook.com/numberphile Numberphile tweets: https://twitter.com/numberphile Subscribe
Superhero Triangles - Numberphile Superhero Triangles - Numberphile
2 years ago En
Heronian triangles and other fascinating things, featuring Dr James Grime. Get your Superhero Triangle T-Shirt and other stuff: http://bit.ly/Super_Tri More links & stuff in full description below ↓↓↓ More videos with Dr Grime: http://bit.ly/grimevideos Dr James Grime: https://www.singingbanana.com PAPERS: A unique pair of triangles - https://arxiv.org/abs/1809.09936 Heronian Triangles Whose Areas Are Integer Multiples of Their Perimeters - http://forumgeom.fau.edu/FG2007volume7/FG200718.pdf Discuss this video on Brady's subreddit: https://redd.it/ev4o6o The Triangle Highway: https://youtu.be/wVH4MS6v23U Too Many Triangles: https://youtu.be/xu-RSUGBgpA All Triangles are Equilateral: https://youtu.be/Yajonhixy4g     Numberphile is supported by the Mathematical Sciences Research Institute (MSRI): http://bit.ly/MSRINumberphile We are also supported by Science Sandbox, a Simons Foundation initiative dedicated to engaging everyone with the process of science. https://www.simonsfoundation.org/outreach/sci
A Prime Surprise (Mertens Conjecture) - Numberphile A Prime Surprise (Mertens Conjecture) - Numberphile
2 years ago En
Dr Holly Krieger discusses Merterns' Conjecture. Check out Brilliant (get 20% off their premium service): https://brilliant.org/numberphile (sponsor) More links & stuff in full description below ↓↓↓ More videos with Holly (playlist): http://bit.ly/HollyKrieger Dr Holly Krieger is the Corfield Lecturer at the University of Cambridge and a Fellow at Murray Edwards College: https://www.dpmms.cam.ac.uk/~hk439/ On Twitter: https://twitter.com/hollykrieger PAPER: Disproof of the Mertens Conjecture: http://www.dtc.umn.edu/~odlyzko/doc/arch/mertens.disproof.pdf More on Mertens Conjecture: http://mathworld.wolfram.com/MertensConjecture.html Useful OEIS sequences: https://oeis.org/A002321 https://oeis.org/A084237 Holly on the Numberphile Podcast: https://youtu.be/QmfQQzjpdpM The Riemann Hypothesis: https://youtu.be/d6c6uIyieoo Mathematical correction from Dr Krieger: The first counterexample to Mertens conjecture must happen for some number *no worse than* about 10^(10^40), but the actual expectation is that
Colouring Numbers - Numberphile Colouring Numbers - Numberphile
2 years ago En
Fields Medallist Sir Timothy Gowers discusses Van der Waerden's theorem. Interview continues on Numberphile2 at: https://youtu.be/hHIfJcwipAY More links & stuff in full description below ↓↓↓ Timothy Gowers website: https://gowers.wordpress.com And his Twitter: https://twitter.com/wtgowers Podcast with Timothy Gowers: https://youtu.be/Pxsac9ZM9us The Fields Medal (with Cédric Villani): https://youtu.be/Vp3sgYKULp0 Numberphile is supported by the Mathematical Sciences Research Institute (MSRI): http://bit.ly/MSRINumberphile We are also supported by Science Sandbox, a Simons Foundation initiative dedicated to engaging everyone with the process of science. https://www.simonsfoundation.org/outreach/science-sandbox/ And support from Math For America - https://www.mathforamerica.org/ NUMBERPHILE Website: http://www.numberphile.com/ Numberphile on Facebook: http://www.facebook.com/numberphile Numberphile tweets: https://twitter.com/numberphile Subscribe: http://bit.ly/Numberphile_Sub Video by Brady Haran and
Loading...