Does daylight savings kill people?

From Standup Mathematician. Read the paper: “Daylight savings time and myocardial infarction” https://openheart.bmj.com/content/1/1/e000019 Pre-order Humble Pi on Maths Gear! https://mathsgear.co.uk/products/humble-pi You can also pre-order Humble Pi on Amazon: https://www.amazon.co.uk/Humble-Pi-Comedy-Maths-Errors/dp/0241360234/ref=sr_1_1?_encoding=UTF8&tag=stanupmath-21 EU plans to scrap daylight savings: https://www.reuters.com/article/us-eu-time/eu-seeks-to-scrap-seasonal-clock-changes-in-2019-idUSKCN1LU1O4 Thanks to my Patreon supports who do support these videos and make them possible. Here is a random subset:…

Making a physical Lissajous curve

From Standup Mathematician. Original tweet by Julio Mulero @juliomulero on 11 September 2018: https://twitter.com/juliomulero/status/1039456605736185856 Previous tweet by Vincent Pantaloni @panlepan on 20 January 2018: https://twitter.com/panlepan/status/954694464697720833 Download Vincent’s Geogebra file: https://www.dropbox.com/s/in51f5dyxlzcn13/Lissajous-table-4×4.ggb?dl=0 Here is my near-missajous excel file. https://www.dropbox.com/s/e80jg8wnhgrjic3/parametric%20drawing%20SUM.xlsx?dl=0 Lissajous Curve on Mathworld. http://mathworld.wolfram.com/LissajousCurve.html This is the turntable I used: https://www.amazon.co.uk/dp/B012A0LK8S/ref=sr_1_1?_encoding=UTF8&tag=stanupmath-21 Thanks to my Patreon supports who…

THE SCUTOID: did scientists discover a new shape?

From Standup Mathematician. Read the Nature paper for yourself: “Scutoids are a geometrical solution to three-dimensional packing of epithelia” https://www.nature.com/articles/s41467-018-05376-1 Thanks to Laura and Clara for helping me with the video! You can download Laura’s model for free or order a print from Shapeways: https://www.thingiverse.com/thing:3024272 https://www.shapeways.com/product/L4D27PP24/pair-of-packable-scutoids Laura Taalman, James Madison University https://www.jmu.edu/mathstat/people/faculty-full-time/Taalman-Laura.shtml Clara Grima, University…

Can animals predict the future? Meet Barry the Psychic Labrador!

From Standup Mathematician. Barry the Psychic Labrador has predicted an England win: https://psychic-pets.com/pets/232 Lilo the Psychic Basset Hound has predicted a Sweden win: https://psychic-pets.com/pets/1246 This video was uploaded before the World Cup quarter-final: England vs Sweden on 7 July 2018. And Barry was right. BAAAAAARY! http://twitter.com/standupmaths/status/1015626452371410944 Check out the Psychic Pets project: http://psychic-pets.com/ The Psychic…

How many different World Cup results can a team have?

From Standup Mathematician. Register your pet at Psychic Pets and start predicting the World Cup games! http://psychic-pets.com/ You can also donate money to help keep the Psychic Pet servers running! Via PayPal: https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=MKYVJHXPW3TRC Or support me directly on Patreon: https://www.patreon.com/standupmaths Or use this strange base-58 number: 195ucbJHh4NfxdMVjXKwFL9FzFkWFRM5fZ Free teaching resources over here: http://think-maths.co.uk/psychic-pets Cases for…

Psychic Pets: can your pet predict the World Cup results?

From Standup Mathematician. Register your pet at Psychic Pets and start predicting the World Cup games! http://psychic-pets.com/ If you’d like to help out with vetting the pet videos or translating the site, send me an email: matt@psychic-pets.com You can donate money to help keep the site going via PayPal: https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=MKYVJHXPW3TRC Or support me directly on…

The Rug Puzzle: how many triangles?

From Standup Mathematician. This video sponsored by ME. I mean: MATHS GEAR. Buy my book. https://mathsgear.co.uk/collections/books/products/signed-paperback-things-to-make-and-do-in-the-fourth-dimension My original tweet that started the puzzle! https://twitter.com/standupmaths/status/981178738594533376 Owner of the rug is Andris Bērziņš: @BerzinsAndris You can find it online here: http://www.narma.ee/collection/treski-t65 Download the smaller rug grid: https://www.dropbox.com/s/ozifr0dmy0i2he5/rug-grid.png?dl=0 Hand working out was Calvin Stromwall: @Cstromw https://twitter.com/Cstromw/status/981208250577190913 The code…

How to find a square root

From Standup Mathematician. Here is the original π video: https://www.youtube.com/watch?v=LhlqCJjbEa0 Watch the long version of the extra working out here: https://www.youtube.com/watch?v=I7YvD7dqsy8 My calculation gave the square root of 10,005 to be 100.02499687578103 Compared to the true value of 100.0249968757810059447921878763577780015950243686963146571… CORRECTIONS – None yet. Let me know if you spot anything! Thanks to my Patreon supporters…

Calculating π by hand: the Chudnovsky algorithm

From Standup Mathematician. For Pi Day 2018 I calculated π by hand using the Chudnovsky algorithm. https://en.wikipedia.org/wiki/Chudnovsky_algorithm k = 0 42698672/13591409 = 3.141592|751… k = 0 and k = 1 42698670.666333435968/13591408.9999997446 = 3.14159265358979|619… Watch me do the second term working out on my second channel: https://youtu.be/I7YvD7dqsy8 See me do the entire final calculation again (without…