The biggest hand calculation in a century! [π Day 2024]

From Standup Mathematician. Please note down the new value of pi: 3.14159265358979323846264338327950288419716939937510582097494459230781640628620899862803482534211706798214808651328230664709384460955058223176 If you’d like to sign up to hear about future ridiculous maths projects that require volunteers: https://forms.gle/w44THpNJ3jWUPqHy6 Play list of all my previous calculating pi videos: https://youtube.com/playlist?list=PLhtC92GarkjyYbxI3-4qzIWIRbZaw4wuP&si=DzWXgnv_vYfDgiLZ This calculation was paid-for with surplus funding from a previous Stand-up Maths kick-starter. If you’d like…

Rotation without rotating.

From Standup Mathematician. Check out Jane Street’s excellent Academy of Math and Programming (AMP). https://bit.ly/sum-amp Here are Andrew Taylors slides on "Rotation with three shears". I saw him give this talk at the MathsJam Gathering 2023. The proof is on page 4. https://github.andrewt.net/shears/ This is a nice introduction to the concept: https://cohost.org/tomforsyth/post/891823-rotation-with-three Way more details…

The many cubes hidden inside a dodecahedron

From Standup Mathematician. Do check out my video with Adam Savage over on Tested: https://youtu.be/s_F4uD8wAs0 Yes, I’m back in NYC for An Evening of Unnecessary Detail on Sunday April 14. https://www.eventbrite.com/e/matt-parker-an-evening-of-unnecessary-detail-tickets-847453715877?aff=oddtdtcreator Pre-order my new book! https://mathsgear.co.uk/collections/books/products/love-triangle-by-matt-parker-signed The excellent graphics of spinning dodecahedrons were made by Ben Sparks. You can see the GeoGebra file here: https://www.geogebra.org/m/yhkepkbc…

The beautiful maths which makes 5G faster than 4G, faster than 3G, faster than…

From Standup Mathematician. Pre-order Love Triangle on Maths Gear now and get a signed copy! Also, a special book cover if you’re fast enough. https://mathsgear.co.uk/products/love-triangle-by-matt-parker-signed UK edition out 20 June, pre-order options: https://bit.ly/UKLoveTriangle USA edition out 20 August, pre-order options: https://bit.ly/3wCTesR Here are the fantastic GeoGebra files Ben Sparks made for the video. Modulated 1…

The 1,200 Year Maths Mistake

From Standup Mathematician. See you all in Wemding, Germany in 2033 for the next installation of this inevitable maths mistake. Thanks to everyone involved with Zeitpyramide who were hugely welcoming and accomodating. Official Zeitpyramyde website: http://www.zeitpyramide.de/ Check out Ayliean MacDonald’s excellent work on TikTok and indeed YouTube: https://www.tiktok.com/@ayliean/video/7276938427071876385 https://www.youtube.com/@Ayliean We also had an very helpful…

What’s up with this strange number coincidence?

From Standup Mathematician. Support "Doing Things the Hard Way Matt" on patreon: https://www.patreon.com/standupmaths Full video of Doing Things the Hard Way Matt doing things the hard way is on Patreon: https://www.patreon.com/posts/watch-full-doing-98412935 OEIS sequence A010527 "Decimal expansion of sqrt(3)/2" https://oeis.org/A010527 Do support the OEIS! https://oeisf.org/donate/ And here are a bunch of the digits: 0.8660254037844386467637231707529361834714026269051903140279034897 Wikipedia page…

Why are the ice shelves collapsing?

From Standup Mathematician. Yes, I’m doing a show in LA on Sunday January 7. It’s a bit last-minute. Come and say hi! https://www.flapperscomedy.com/shows/an-evening-of-unnecessary-detail/72865/ Huge thanks to Sammie for sharing her equations. Check out her work at Northumbria University: https://www.northumbria.ac.uk/about-us/our-staff/b/sammie-buzzard/ "A Mathematical Model of Melt Lake Development on an Ice Shelf" https://agupubs.onlinelibrary.wiley.com/doi/full/10.1002/2017MS001155 Sammie’s very good MATLAB…

Why does Vegas have its own value of pi?

From Standup Mathematician. UPDATE: They fixed the website! And we got a photo of the pi wall! https://youtu.be/iW1MZWBZbQU Here is the value of "Vegas Pi": 3.14159265358979323846 1715364367892590360011 6892589235420199561121 968230301952035301852 Read all about the Sphere and science: https://www.thespherevegas.com/science Thanks to Linus Boman for the help! Check out their excellent videos: https://www.youtube.com/@LinusBoman Here is Linus’s post on…

A needlessly complicated but awesome bridge.

From Standup Mathematician. The Einstein Hat Competition! https://momath.org/hatcontest/ Thanks to Jane Street for supporting this video. https://www.janestreet.com/join-jane-street/ Stan Wagon has written an article about all of the maths involved in the bridge: https://community.wolfram.com/groups/-/m/t/2917199 Designed by Thomas Randall-Page. https://www.thomasrandallpage.com/ Engineering by Alfred Jacquemot (then of Price & Myers). https://www.pricemyers.com/about-us/people/alfred-jacquemot You can ride the MoMath square-wheel bike…

How many ways can you join regular pentagons?

From Standup Mathematician. Thanks to Jane Street for supporting this video. https://www.janestreet.com/join-jane-street/ Curved-Crease Sculptures by Erik Demaine and Martin Demaine https://erikdemaine.org/curved/ The original paper: "A Complete List of All Convex Polyhedra Made by Gluing Regular Pentagons" https://arxiv.org/abs/2007.01753 Get your hexagon equivalent here: https://arxiv.org/abs/2002.02052 Cookie. Clicker. Like that video is going to happen. https://arxiv.org/abs/1808.07540 Huge thanks…

Unexpected science from a 0.000001 megapixel home-made telescope

From Standup Mathematician. Bonus footage of me talking about the Parkerscope over here on Patreon: https://www.patreon.com/posts/bonus-data-chat-84165442 Thanks to Greg Foot for helping out with all of the filming. Check out their channel: https://www.youtube.com/@GregFoot Pretty sure Greg was the only YouTuber who was with me at the Eclipse. Lucie’s telescope was the "Coronal Imaging Polarizer (CIP)"…

We analysed 4,678,387 NBA shots

From Standup Mathematician. Check out Grant’s Summer of Math Exposition (supported by Jane Street!) https://some.3b1b.co/ More details here: https://3blue1brown.substack.com/p/some3-begins Tim Chartier has a great book called "Get in the Game – An Interactive Introduction to Sports Analytics" if you’d like to learn more about their work. https://press.uchicago.edu/ucp/books/book/chicago/G/bo178291370.html Here is their Davidson College page: https://www.davidson.edu/people/tim-chartier The…

Behold all-new equations for triangles!

From Standup Mathematician. Thanks to Jane Street for supporting this video. Check out their open roles, programs and events: https://www.janestreet.com/join-jane-street/ Here is the original "Is there an equation for a triangle?" video. https://www.youtube.com/watch?v=4K-Jx914NcQ (I’m taking suggestions for what Part III should be named. Comment below.) And thanks to everyone who contributed to the triangleness. Here…

I Discovered a Maths Loophole in UK Tax

From Standup Mathematician. Subscribe to Stand-up Maths for more tax tips this useful or less. Yet to be sponsored by Hubbard’s Foodstore Spaghetti Rings in Tomato Sauce. Click here for 0% off your order! https://www.sainsburys.co.uk/gol-ui/product/sainsburys-baked-beans-in-tomato-sauce–basics-420g National Insurance rates and categories (by Hey Mate, Right Cash) https://www.gov.uk/national-insurance-rates-letters Huge thanks to my Patreon supporters. You’re all tariffic.…