# Exploring the mysteries of the Prime (gaps!) Line. 0 (0)

From Standup Mathematician. Sign-up for Private Internet Access and we can be VPN buddies! Under \$3 a month. https://www.privateinternetaccess.com/standupmaths Thanks to Kerry D. Wong who originally piqued my interest by sending me this: http://www.kerrywong.com/2009/09/06/an-alternative-illustration-of-prime-number-distribution/ Here are the papers about finding arbitrarily large gaps between primes: The first paper: https://arxiv.org/abs/1408.4505​ The paper one day later: https://arxiv.org/abs/1408.5110…

# Calculating π by counting molecules. [Pi Day 2021] 0 (0)

From Standup Mathematician. Check out Steve Mould’s Pythagorean Siphon video: https://www.youtube.com/watch?v=Cg8KQfaT9xY&ab_channel=SteveMould Every Pi Day I calculate the digits of π somehow. This year I counted the number of molecules in a disc as a ‘real accurate’ way to measure its surface area. You can see all the previous videos here: https://www.youtube.com/watch?v=CKl1B8y4qXw&list=PLhtC92GarkjyYbxI3-4qzIWIRbZaw4wuP Yes, you can buy…

# Why π^π^π^π could be an integer (for all we know!). 0 (0)

From Standup Mathematician. Check out the Jane Street programs if you’re considering a mathematics/finance/programming job: https://www.janestreet.com/join-jane-street/our-programs/ Here is Tim Gowers’s reply to the original tweet: https://twitter.com/wtgowers/status/1346212151581700096 3^3^3^3 on wolfram alpha: https://www.wolframalpha.com/input/?i=3%5E3%5E3%5E3 And for completeness, here is pi^pi^pi^pi: https://www.wolframalpha.com/input/?i=pi%5Epi%5Epi%5Epi If you have opinions about my 2n conjecture, send an email to matt+puzzles@standupmaths.com Here is my Numberphile…

# How lucky is too lucky?: The Minecraft Speedrunning Controversy Explained 0 (0)

From Standup Mathematician. Buy Humble Pi now and get a signed sheet from the typesetting proofs! https://www.harvard.com/book/9780593084694_humble_pi/ My talk on 4 February 2021 at Harvard Book Store: https://www.harvard.com/event/virtual_event_matt_parker/ Here is the original accusation against Dream. Video: https://www.youtube.com/watch?v=-MYw9LcLCb4&ab_channel=Geosquare Paper: https://mcspeedrun.com/dream.pdf And here is Dream’s reply. Video: https://www.youtube.com/watch?v=1iqpSrNVjYQ&ab_channel=DreamXD Paper: https://drive.google.com/file/d/1yfLURFdDhMfrvI2cFMdYM8f_M_IRoAlM/view "Matt flips a coin 100 times." https://youtu.be/T2Xtit17snE…

# I wired my tree with 500 LEDs and calculated their 3D coordinates. 0 (0)

From Standup Mathematician. If you support me on Patreon at any point in December 2020 I will film your name on my xmas tree while I give you a thumbs-up of appreciation. https://www.patreon.com/standupmaths Huge thanks to Eugénie von Tunzelmann for helping me out with this video. You can see more of Eugénie in my "General…

# Why was Biden’s win calculated to be ONE IN A QUADRILLION? 0 (0)

From Standup Mathematician. This is Part III out of ‘one with a quadrillion zeros’ parts. Give the gift of Stand-up Maths this Christmas: https://www.patreon.com/standupmaths https://mathsgear.co.uk/ Part I: "Why do Biden’s votes not follow Benford’s Law?" https://www.youtube.com/watch?v=etx0k1nLn78 Part II: "Do these scatter plots reveal fraudulent vote-switching in Michigan?" https://www.youtube.com/watch?v=aokNwKx7gM8 Here is the Supreme Court filing from…

# What was the first (known) maths mistake? 0 (0)

From Standup Mathematician. Thanks to Waterstones for choosing Humble Pi as a ‘top 100’ paperback of the year. https://www.waterstones.com/book/humble-pi/matt-parker/9780141989143 Signed copies are available at Maths Gear. It’s cheaper at Waterstones, but not signed. You choose! https://mathsgear.co.uk/collections/books/products/humble-pi-signed-paperback Thanks to Robert Englund and the Free University of Berlin for producing Archaic Bookkeeping. What a niche but amazing…

# Can you solve the banana puzzle? 0 (0)

From Standup Mathematician. Check out the Maths Inspiration shows here: http://mathsinspiration.com/ 24 Nov: Visualizing Math(s) 04 Dec: Christmas Special You should definitely watch Destin’s SmarterEveryDay video: Why Snatch Blocks are AWESOME (How Pulleys Work) https://www.youtube.com/watch?v=M2w3NZzPwOM Thanks to Hugh for actually weighing the bananas. http://www2.eng.cam.ac.uk/~hemh1/ The puzzle is a creation of Rob Eastaway. https://robeastaway.com/ Support me…

# Do these scatter plots reveal fraudulent vote-switching in Michigan? 0 (0)

From Standup Mathematician. Here is the Dr Shiva Ayyadurai video I am talking about: https://www.youtube.com/watch?v=Ztu5Y5obWPk This is my previous video on Benford’s Law: https://www.youtube.com/watch?v=etx0k1nLn78 Support me on Patreon and I’ll make more maths videos. Probably not on election data, mind you. (Please, for the love of plot, no more election data.) https://www.patreon.com/standupmaths The page of…

From Standup Mathematician. My book is cheap at Waterstones and signed at Maths Gear: https://www.waterstones.com/book/humble-pi/matt-parker/9780141989143 https://mathsgear.co.uk/products/humble-pi-signed-paperback Check out Steve Mould’s Numberphile video about Benford’s Law. https://www.youtube.com/watch?v=XXjlR2OK1kM Buy a signed copy of "How Many Socks Make a Pair?" by Rob Eastaway. https://mathsgear.co.uk/products/copy-of-signed-copy-of-why-do-busses-come-in-threes There’s more on Mark Nigrini’s work here: http://www.nigrini.com/benfords-law/ "Benford’s Law and the Detection of…

# What is a Vampire Matrix? 0 (0)

From Standup Mathematician. Apply for a paid internship at Jane Street! Or, a job. https://www.janestreet.com/join-jane-street/info-booth/ Vampire Numbers on Numberphile with James Grime. https://youtu.be/3ZMnVd4ivKQ Flammable Math’s original tweet: https://twitter.com/FlammableMaths/status/1306303462607654914 Robin Houston gets involved: https://twitter.com/robinhouston/status/1306539901576503297 Here comes Greg Egan! https://twitter.com/gregeganSF/status/1306565923671736320 Robin’s tweets about characteristic polynomials and the Cayley-Hamilton theorem. I suggested looking them up and working through…

# UK Government loses data because of Excel mistake. 0 (0)

From Standup Mathematician. My previous video: When Spreadsheets Attack! https://www.youtube.com/watch?v=yb2zkxHDfUE Check out Gemma Arrowsmith (voice and star of Spreadsheets ad) on YouTube: https://www.youtube.com/user/gemmaarrowsmith Details about her courses and everything else she does here: http://gemmaarrowsmith.com/ Seth’s shout-out is at 14:15 here: https://youtu.be/TxHhgSIjxDc?t=855 This is the BBC report: https://www.bbc.co.uk/news/technology-54423988 You can read the official government statement on…

# General Relativity: Top 05 Mishaps [inc INTERSTELLAR] 0 (0)

From Standup Mathematician. Check out A Podcast of Unnecessary Detail: https://festivalofthespokennerd.com/podcast/ This is the Maths Inspiration show I’m going with Eugénie on 24 November: http://www.mathsinspiration.com/events/?id=123 We have passes for schools as well as for people watching from home. Huge thanks to Eugénie von Tunzelmann for being my coolest friend and for taking the time to…

# Why is there no equation for the perimeter of an ellipse‽ 0 (0)

From Standup Mathematician. Applications for paid internships at Jane Street are open! https://www.janestreet.com/join-jane-street/internships/ A Podcast of Unnecessary Detail is out now: https://festivalofthespokennerd.com/podcast/ Come for the Unnecessary Detail, stay for the A Podcast Of. These are my approximation equations: perimeter ≈ π[53a/3 + 717b/35 – √(269a^2 + 667ab + 371b^2)] perimeter ≈ π(6a/5 + 3b/4) If…

# The Rocket Equation: Mathematician vs Astronaut 0 (0)

From Standup Mathematician. Huge thanks to Chris Hadfield and their amazing team for making these videos possible. https://chrishadfield.ca/ You can watch just my rocket equation derivation without the coolest person in the world getting in the way. https://youtu.be/kqMQSJhRhlQ?t=52 You can go and watch Lucie Green’s first two video with Chris Hadfield right now, the third…

# Landmark Numbers and Bad Number Analogies 0 (0)

From Standup Mathematician. You can pre-order Tim’s book How to Make the World Add Up now! https://mathsgear.co.uk/products/how-to-make-the-world-add-up-signed-hardback Watch Tim Harford talk about the Stork-Baby correlation on Numberphile: https://www.youtube.com/watch?v=-n-d1ApBTFw Here is the current Landmark Number recommended toolkit (yours may differ). – population of the country you live in – ‘people days’ per year in your countries…

# What is the biggest tangent of a prime? 0 (0)

From Standup Mathematician. What is your Mega-Favourite Number? The playlist of #MegaFavNumbers videos is here: https://www.youtube.com/watch?v=R2eQVqdUQLI&list=PLar4u0v66vIodqt3KSZPsYyuULD5meoAo If you make a video about a number bigger than 1,000,000 use the hashtag #MegaFavNumbers and we’ll add it to the playlist! Here is my current mega-favourite number: 1,169,809,367,327,212,570,704,813,632,106,852,886,389,036,911 This is the OEIS page for A249836: Numbers n for…

# Does “land area” assume a country is perfectly flat? 0 (0)

From Standup Mathematician. You can listen to the A Problem Squared podcast here (and everywhere else). Please do! https://aproblemsquared.libsyn.com/ Huge thanks to Dr Laura Graham! Everything they did is on github: https://github.com/laurajanegraham/surface_area/blob/master/surface_area.md All about Laura: https://laurajanegraham.github.io/ Prof Alasdair Rae was also big help and sent me their slides. http://bit.ly/measurelandarea This is that video: https://www.youtube.com/watch?v=pDYkiK90WCM All…

# Ellipsoids and The Bizarre Behaviour of Rotating Bodies 0 (0)

From Standup Mathematician. Derek’s video: The Bizarre Behavior of Rotating Bodies, Explained https://www.youtube.com/watch?v=1VPfZ_XzisU Based on this amazing footage: Dancing T-handle in zero-g https://www.youtube.com/watch?v=1n-HMSCDYtM Terence Tao’s original answer, with update. https://mathoverflow.net/questions/81960/the-dzhanibekov-effect-an-exercise-in-mechanics-or-fiction-explain-mathemat Support me on Patreon and I can make more video like this! https://www.patreon.com/standupmaths We are sat so close because we filmed this in the “before…

# Why do calculators get this wrong? (We don’t know!) 0 (0)

From Standup Mathematician. Women in Trading and Technology: https://www.janestreet.com/witt.html 21 to 23 September 2020 (deadline to apply: Friday 7 August 2020) These are all of the almost-π calculations I showed: 11^6 ÷ 13 ≈ (156158413/3600)π 17^5 ÷ 11 ≈ (366494029/8920)π 11^6 ÷ 17 ≈ (119415257/3600)π 19^9 ÷ 2^3 ≈ (65249503235207/5082)π 5^9 ÷ 3 ≈ (1226819353/5920)π…