The Rug Puzzle: how many triangles?

From Standup Mathematician. This video sponsored by ME. I mean: MATHS GEAR. Buy my book. Signed paperback – Things to Make and Do in the Fourth Dimension My original tweet that started the puzzle! Maths challenge! A viewer bought a rug for his 8-year-old who now wants to know how many triangles it has. They've…

The Tuning Fork Mystery: an unexpected update

From Standup Mathematician. Here is the original tuning fork mystery video. But some people could not get the frequency doubling to work. Now we think we have the start of an explanation. More updates to follow as Hugh and I investigate it further! CORRECTIONS – None yet. Let me know if you spot anything! Thanks…

How to find a square root

From Standup Mathematician. Here is the original π video: Watch the long version of the extra working out here: 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 who enable…

Dodecaplex: the puzzle from the fourth dimension!

From Standup Mathematician. Check out Dodecaplex on Maths Gear! Dodecaplex Puzzle Dodecaplex is based on the mathematics of Saul Schleimer and Henry Segerman. Henry Segerman http://www.segerman.org/ Saul Schleimer http://homepages.warwick.ac.uk/~masgar/ You can read more about the maths behind Dodecaplex, and the wider family of Quintessence puzzles, in their paper “Puzzling the 120-cell”. https://arxiv.org/abs/1310.3549 As well as…

Stats of CERN: How many Higgs per second?

From Standup Mathematician. Check out Lucie’s adventure around CMS on the Cosmic Shambles channel: This is the live feed of the LHC energies I was looking at: https://op-webtools.web.cern.ch/vistar/vistars.php?usr=LHCLUMINOSITY It’s part of this larger portal which has all sorts of in-depth stats: http://www.lhcportal.com/Portal/ This is the public-facing page for LHS statistics: http://acc-stats.web.cern.ch/acc-stats/#lhc/overview-panel Read all about the…