Wrong, But Useful: Episode 76b Wrong, But Useful podcast

1:22:00

In this, the final episode of WBU, @reflectivemaths and I discuss: @samuel_hansen's antiracism post ((get well soon, Samuel)). Dave and I both assert that Black Lives Matter and acknowledge that we have a significant amount of work to do to create a just society. In a whiplash-inducing change of tone, tooth fairy maths Multiplayer Nim (‘unlucky 10’) The Million Game from @drewfoster Dave seems to have a thing about noughts and crosses The Mathoff is over: thanks, everyone! Now, more than ever, would a decent text book be the answer? The chaos game in a hexagon Social distancing in 3D Via @christianp: Simon Plouffe has found a sequence of 565 primes in 'geometric progression' (meaning they're the closest integers to the first 565 terms of a geometric sequence) Some quotes from past blog posts: Dave insults mechanics, then gets stroppy about Colin insulting stats In this month's podcast, @reflectivemaths and I discuss: Colin's book being available to buy Colin gloats about Spoof My Proof and Dave chews on sour grapes Colin has laser eye surgery and doesn't care about Dave's health... ... but does care about 20481 A final puzzle: It usually takes me eighty minutes to run my Sunday running route, but if I wear my running hat, it takes one hour and twenty minutes. Why? Thank you for listening loyally, especially to those who've co-hosted and interacted with us. It's been an entertaining journey. Right. How do we get into pretending this didn't happen? The post Wrong, but Useful: Episode 80/80 appeared first on Flying Colours Maths .…

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Wrong, But Useful: Episode 79 56:19

5 years之前56:19

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In this, the penultimate episode of Wrong, But Useful, we’re joined by @karenshancock (who is Karen Hancock in real life). We discuss: A scoring system for an online quiz round. The Big Mathoff What is a surd? Currently reading Ratio by Michael Ruhlman - a cookery book that starts from the principles Some Noughts and Crosses variants https://twitter.com/mburnsmath/status/1248330254281662464 www.marilynburnsmathblog.com/five-twists-on-tic-tac-toe/ nrich.maths.org/1199 Core maths festival (via @mathsTechnology/Tom Button) For any given cubic if a line intersects it at three points then the sum of the x-coordinates of these points will be constant. An infinite monkey music bot A fractal Odds and Evenings and Mathematical Objects Ending the podcast The post Wrong, But Useful: Episode 79 appeared first on Flying Colours Maths .…

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Wrong, But Useful: Episode 78 1:03:46

5 years之前1:03:46

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In episode 78 of Wrong, But Useful, we're joined by @c0mplexnumber, who is Clarissa Grandi in real life. This month, we discuss: Clarissa's Artful maths books , available via Tarquin - the activity book and the teacher's guide Number of the podcast: $\phi$ (and 3D maths) @anniek_p's #mathartchallenge Aperiodical’s big math-off is live! Also the stickerbook Rabbits and elephants Super-rectangles (via Peter Rowlett): Maths to get you through lockdown COVID-19 and Bayes's theorem Supermarket 2m distancing/route planning Richard Guy (103 1/2) and John Conway (82) have died. Casio calculator emulators now free Probability Question from an American Maths challenge (via Peter Rowlett) ABC conjecture proof to be published (via Peter Rowlett): Podcast roundup The final few episodes of Wrong, But Useful. After some discussion, we've decided that Episode 80 will be the last WBU, although we hope someone else will pick up the topical maths podcast baton. * Edited 2020-04-19 to add show notes. The post Wrong, But Useful: Episode 78 appeared first on Flying Colours Maths .…

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Wrong, But Useful: Episode 77 1:22:07

5 years之前1:22:07

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In this month's Pi Day Special episode, we're joined by @aap03102, who is Chris Smith in real life. We discuss: Negative primes Surdoku (look in issue $2^5$) Chris's dark past Chalkdust book of the year Book (or writing) ideas (I’m trying to compile a big list of maths things I - or anyone - could write about. If you have such an idea, let me know and I’ll stick it on the list.) Chris's Pi Day antics Katherine Johnson has died, aged 101 A COVID-19 lesson plan and dataviz . Distance-time graphs * Edited 2020-03-14: To subscribe to Chris's maths newsletter, email him on aap03102 [at] gmail.com and ask nicely! The post Wrong, But Useful: Episode 77 appeared first on Flying Colours Maths .…

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Wrong, but Useful: Episode 76b 11:21

5 years之前11:21

11:21

What's this? Didn't we have a WBU last week? We did indeed. Only we cut out a section of our conversation with @dr_teeluck about APR to keep the episode length (somewhat) reasonable. Here it is as a special bonus episode for your enjoyment. The post Wrong, but Useful: Episode 76b appeared first on Flying Colours Maths .…

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Wrong, But Useful: Episode 76 1:15:12

5 years之前1:15:12

1:15:12

In this episode of Wrong, But Useful, we’re joined by @dr_teeluck , who is Dr Vijay Teeluck in real life. We discuss: sunrise (posts by @colinthemathmo and by me got the same answer, someone else disagrees, nice thing to explore) favourite numbers a lovely post by @samhartburn about tetrahedra fitting through each other bridges (why are the bricks not parallel with the road?) The R0 value of the coronavirus Internet once again astonished that multiplication commutes Perfect espresso formula In communicate the bloody thing properly news: $|-1|-2|-3|$ thread here “Ten times greater” “Ten times smaller” Zero point seventy-five per cent via @peterrowlett : 30 A*s in one class via @peterrowlett : Funding boost via @peterrowlett : call for hosts for Carnival of mathematics via @evelynjlamb : Google ngrams shows a dramatic spike for ‘enneagons’ (and other-gons) around 1820. Why? Watch out for a special mini-episode next week! The post Wrong, But Useful: Episode 76 appeared first on Flying Colours Maths .…

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Wrong, but Useful: Episode 75 1:14:12

5 years之前1:14:12

1:14:12

In episode 75 of Wrong, but Useful, we talk with @astrastefania, who is Stefania Delprete in real life. We discuss: Dreams about Maths and doing Maths in lucid dreams Goodreads maths reading challenge Newsletters I like: Stuff Evelyn Wants You To Read by @evelynjlamb and and Fair Warning by @SophieWarnes Is a parallelogram a trapezium? (via @cshearer41) via @jamesgrime: The bullseye illusion RI Christmas lectures with @fryrsquared How do you describe Confidence Intervals? How damaging is to say “I’m 95% sure that mu is between ‘here’ and ‘here’ “? We reference The Maths of Life and Death . via @MrShepherd Maths (Lee Shepherd): "This may be a really stupid one but please enlighten me as I've been thinking for a few weeks to work it out. If irrational numbers are infinitely long, does pi contain the value e in its decimal? Do they converge at some point?" via @johndcook: A simple unsolved problem : Are there infinitely many positive integers n such that $\tan(n) > n$? via @wtgowers: Pretty accessible explanation of how to solve a cubic Via Adam Atkinson: how much would a suitcase of gold weigh? Pizza Hut’s 41% off food in January Drawing a perfect circle Questions I wasn’t expecting … When you’re numbering a list for a random sample, do you number across or down? and … Why isn’t stabbing my pen into the page ‘random’? What can I do with a pricing gun? Where did Lagrange come from? * Edited 2020-01-17 to correct @fryrsquared's Twitter handle. Thanks to @peterrowlett. The post Wrong, but Useful: Episode 75 appeared first on Flying Colours Maths .…

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Wrong, But Useful, Episode 74 21:39

5 years之前21:39

21:39

It’s time for the @BigMathsJam Wrong, But Useful! @stecks (Katie Steckles): Brouwer’s Fixed Point Theorem : “they said it’s a theorem, so I’ve got to believe it.” Mentions @jamesgrime . @christianp (Christian Lawson-Perfect): ordering cards to generate a fractal sequence. @peterrowlett (Peter Rowlett): transforming numbers problems into graphs. Mentions @alexcorner and @wtgowers . The puzzle is stated here and the discussion thread is here . @dragon_dodo (Dominika Vasilkova): the Weierstrass function @scroggs (Matthew Scroggs): @oddsandevens ’s fractional origami. Yuen Ng: Miscancelling fractions @pecnut (Adam Townsend): @astrastefania ’s redesign of the the musical stave. @smokeyfurby and his handler (Belgin) enjoyed @samhartburn ’s cake, based on @becky _k_warren’s Big Math-Off entry - scroll down! @njj4 (Nicholas Jackson): A bit about Émilie du Châtelet . Adam Atkinson: On randomly-moving knights. * edited 2019-12-08 to add links. The post Wrong, But Useful, Episode 74 appeared first on Flying Colours Maths .…

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Wrong, But Useful, Episode 73 1:04:56

5 years之前1:04:56

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In this month's episode of Wrong, But Useful, we talk to @AJMagicMessage, who is Andrew Jeffrey in real life, and one of the driving forces behind Maths Week England , which in 2019 is November 11th to 15th. Apologies for a few issues with feedback in this episode. Dave takes full responsibility. We discuss: Number of the Podcast : 1089 How to get involved in Maths Week England Game Theory (especially isomorphic games) and ncase.me/trust (via @LorHRL Hannah) Reading: @benorlin’s Math[s] with Bad Drawings and @robeastaway’s Maths on the Back of an Envelope . Via @robeastaway: further thoughts on rounding Via @peterrowlett: problem-solving in the new A-level Should you tie your shoes on the travelator, or on a standard walkway? Shorts : Big MathsJam bookings Via @octonion (Christopher D Long): "I'm also curious if Haken and Appel's original computer code for the Four Color Theorem from 1972 is still available, and if it can be run on modern hardware. It'd be a sadly missed opportunity for scientific history if it were somehow lost." Carnival of mathematics 175 Election coming up. We want to see your bad graphs! Puzzle feedback : Late solution to the square-colouring puzzle, from Sam Steele, our favourite Antipodean listener in Carrum Downs, Australia. No answers to the pillar problem yet. New puzzle : (via @cshearer41) Find the sum of the infinite series $\frac{1}{2} + \frac{1}{4} + \frac{2}{8} + \frac{3}{16} + \frac{5}{32} + \frac{8}{64} + \frac{13}{128} + \dots$ (i.e. Fibonacci on the top and powers of 2 on the bottom). Next month is the Big MathsJam special! * Edited 2019-11-08 to fix LaTeX The post Wrong, But Useful, Episode 73 appeared first on Flying Colours Maths .…

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Wrong, But Useful: Episode 72 1:24:22

5 years之前1:24:22