The number 1729 is “famous” among mathematicians. Why? Featuring Dr James Grime and Professor Roger Bowley. 1729 is known as the Hardy–Ramanujan number or “Taxi Cab Number”. Website: http://www.numberphile.com/ Numberphile on Facebook: http://www.facebook.com/numberphile Numberphile tweets: https://twitter.com/numberphile Videos by Brady Haran
Matt talks us through “Happification” and resulting structures it creates. Includes his fascinating Melancoil!? Our earlier Happy Numbers video is at http://www.youtube.com/watch?v=kC6YObu61_w and the Narcissistic Numbers video is athttp://www.youtube.com/watch?v=4aMtJ-V26Z4 Website: http://www.numberphile.com/ Numberphile on Facebook: http://www.facebook.com/numberphile Numberphile tweets: https://twitter.com/numberphile Videos by Brady Haran
Magic squares are pretty interesting for Numberphiles any day of the week – but Roger shows us one with extra special “powers”. Professor Roger Bowley works at the University of Nottingham. His drawing of the magic square can be seen at:http://www.flickr.com/photos/numberphile/6477417809 Website: http://www.numberphile.com/ Numberphile on Facebook: http://www.facebook.com/numberphile Numberphile tweets: https://twitter.com/numberphile About brown paper: http://periodicvideos.blogspot.com/2012/02/brown-paper-question.html Videos by Brady Haran
We’re talking pretty big numbers here… And an interesting idea about what it’d be like traveling in a Googolplex-sized Universe! With Antonio (Tony) Padilla and Ria Symonds from the University of Nottingham. Website: http://www.numberphile.com/ Numberphile on Facebook: http://www.facebook.com/numberphile Numberphile tweets: https://twitter.com/numberphile Videos by Brady Haran
What’s the probability that two people on the football/soccer pitch share a birthday? That’s only 23 people (22 players and the ref, as long as there have been no red cards or injuries!!!) and there are 365 days in a normal year. Dr James Grime explains. Our thanks to Nottingham Forest Football Club. Website: http://www.numberphile.com/ Numberphile [...]
7 is an example of a happy number, as opposed to sad numbers. What makes a number happy? Dr Ria Symonds is from the University of Nottingham. Website: http://www.numberphile.com/ Numberphile on Facebook: http://www.facebook.com/numberphile Numberphile tweets: https://twitter.com/numberphile Videos by Brady Haran About the brown paper: http://periodicvideos.blogspot.com/2012/02/brown-paper-question.html
The NFC’s streak of 14 Super Bowl coin toss wins has come to an end… And they aren’t likely to do it again for another 32,766 years. Dr James Grime attempts to calculate how many years – on average – the NFC will wait to win another 14 in a row. Website: http://www.numberphile.com/ Numberphile on Facebook: http://www.facebook.com/numberphile [...]
Is 1 a prime number? Apparently not. Dr James Grime explains. Website: http://www.numberphile.com/ Numberphile on Facebook: http://www.facebook.com/numberphile Numberphile tweets: https://twitter.com/numberphile Videos by Brady Haran
The square root of two is a fascinating number with a long and sordid history. It also forms the basis of most office paper, such as A4, A3, etc. Website: http://www.numberphile.com/ Numberphile on Facebook: http://www.facebook.com/numberphile Numberphile tweets: https://twitter.com/numberphile Videos by Brady Haran This video features Professor Roger Bowley and Dr James Grime. More about our contributors at www.numberphile.com/team
17 is the minimum number of clues required to give a unique sudoku solution – but how did mathematicians prove this? Dr James Grime discusses a recent paper which cracked the problem. The paper being discussed by McGuire and others is athttp://arxiv.org/abs/1201.0749 Website: http://www.numberphile.com/ Numberphile on Facebook: http://www.facebook.com/numberphile Numberphile tweets: https://twitter.com/numberphile Videos by Brady Haran James Grime’s website [...]
Square roots, strange patterns and a mysterious constant – what are Matt’s “grafting numbers” all about? And why is computer programming like skydiving? Website: http://www.numberphile.com/ Numberphile on Facebook: http://www.facebook.com/numberphile Numberphile tweets: https://twitter.com/numberphile Videos by Brady Haran Matt Parker’s website is http://standupmaths.com/ Filmed at the Champagne Bar at St Pancras train station.
Why is “f” a number to people who work with computers? More about binary in our “Pac-Man” video at http://www.youtube.com/watch?v=umYvFdU54Po This video features James Clewett. Website: http://www.numberphile.com/ Numberphile on Facebook: http://www.facebook.com/numberphile Numberphile tweets: https://twitter.com/numberphile Videos by Brady Haran
In a lively show, mathemagician Arthur Benjamin races a team of calculators to figure out 3-digit squares, solves another massive mental equation and guesses a few birthdays. How does he do it? He’ll tell you. Mathematician and magician Arthur Benjamin combines his two passions in “Mathemagics,” a mind-boggling presentation of lightning calculations and other feats [...]
