The latest episode of #themathematicianspod this time it's another double bill with Varahimihira and Bhaskara I. ...And what's that... Mainly an episode about geography? I'll grab the popcorn. #mathshistory #talkingmaths

Episode 59 - Varāhamihira (And Bhāskara I) - Back to School

Was Varāhamihira the world's first statistician? Could a sixth-century mathematician really predict the monsoon using observational data? And how did Bhāskara I produce one of the greatest approximati...

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The London #sciencemuseum have a great collection of maths history. I saw: A liquid computer for economic differential equations; an old trig circular slide rule; and the analogue computer for tide predictions. Good times all round, strongly recommend. #mathshistory #mathsinmuseums

I'm having a great time playing with aperiodic tesselation in the pattern pod at the London #Sciencemuseum. Well done to the designers

I'm having a great time playing with aperiodic tesselation in the pattern pod at the London #Sciencemuseum. Well done to the designers

Warning, bad science joke: Why was Aristotle's house so dusty? Because his nature abhorred a vacuum.

A train leaves the station (bottom) heading west. Can it return to the station heading east? Is there anywhere the train might get stuck? Is there anywhere the train can reach but only from one direction? I call this directed node networks. #mathsky #graphtheory #math4kids

Here are the ways to draw 4 lines with distinct intersection arrangements. Can you give me an interesting question that is prompted by this image? #mathsky #holidaymaths

Here's a fun question... By the way I need an answer real fast

I just claimed my #tiletoday. A small bridge in my village, forever a digital link to maths history. Claim yours today at www.tile.today , it's free and fun. Just walk somewhere, and claim it for yourself. Like Pokémon go but without the teddies.

New episode is live, of #themathematicianspod. A much longer production process for my longest scraped episode. This time featuring the snorts and sniffles of my new baby asleep on my chest. Tune in to learn about merchants and maths in #ancientindia, with Yavanesvara. #talkingmaths #mathsky

Gosh. I've just recorded the latest episode of #themathematicianspod with a raw time of 46 minutes. A record for me with a scripted episode. Hopefully the story of #yavanesvara will be worth it. Coming to you in probably 2-3 weeks.

I've just started listening to a fantastic #podcast on the #historyofengland by @historyengland.bsky.social I cannot recommend it enough for style, clarity and wit. Great job, David!

Hey, it's my birthday today. But please don't feel embarrassed that you didn't get me anything, all I want for my birthday is for you to enjoy today's new episode of #themathematicianspod. This time, Pingala, and a 10 minute beat poem... Please forgive me. #mathsky #mathshistory #poetry

Episode 56 - Pingala - Beats us up

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"A fair 8-sided dice has faces labelled K,A,N,G,A,R,O,O. The dice is rolled repeatedly..." Just another normal day as a mathematician. #AlevelMaths

I've been reading 'James and the giant Peach' with my daughter. Spoiler alert: Does anyone know how many seagulls it would actually take to lift up a peach the size of a house?

I've been struggling to make a joke about how "a man with a hammer sees only nails." Except I have a rusted wheel bearing that I need to hammer "out", whilst a happer typically pushes "in". I was delighted to discover a "slide hammer" Is a real tool. And now I own one. P.s. got the bugger

I just glanced over my analytics page for #themathematicianspod. I am delighted that I have reached so many countries. *Scrolls down to near the bottom of the list* Oh cool, a single download from #Palestine... Wait, "Disputed" ‽ Could we not just say Palestine? (Or OPT, as the UN does)

Why, it's another episode of #themathematicianspod this time an interview episode with the fabulous @teakayb.mathsy.space, author of #themathrmaticianslibrary. Listen in to hear his thoughts on writing a book about books about maths. As well as more history and philosophy. #talkingmaths #mathsky

I've just finished watching "Death by lightning" on Netflix. They appear to have missed the most interesting aspect of the #POTUS 's life, that President Garfield developed his own distinct proof of #Pythag, one without using any squares. Otherwise a good watch. #mathsky #somepresidentswereclever

Who can tell me what this #wildcurve is? A stable fluid boundary on an angled chopping board with a laminar water jet. #mathsky #mathsinthewild

Tonight you can draw a straight line between Jupiter and Venus... I mean what are the odds of that! #AstrologyTruth P.s. go outside and look up, it's really good for your health to remember how small we are.

My first attempt at a #DiscreteDynamicalSystem Take a number, n If (n-1) is prime then map n -> n^2 If (n-1) is composite then map n-> Aliquot sum of (n-1) Numbers 1-19 all end in a cycle. I am not sure about 20. eg. 6 -> 36 -> 13 -> 16 -> 9 -> 7 -> 6. #mathsky #recreationalmaths #mathsart

Competition time: What are the "Rules", and what happens to 20? (Spoiler - my PC has counted 31 steps from 20 and hit a number too big to process, no cycle in sight)

Try this. Take a number, n, split it into proper prime divisors. Write those, ascending, as the place values for a new term base n. Repeat this recursively. I think only 3 non-prime-powers will terminate. 10-> 25_10 25-> 5_25 5->0 12-> 23_12 27-> 3_27 3-> 0. What is the third number?

Competition time: A sequence stats 1, k, ... Each new term is the product of the last two subtract the sum of the other previous terms. Which sequence grows faster k=1 or k=2 ? #oeis oeis.org/A117030

Just had a fun conversation about Primitive Pythagorean Triples with Carol Jacoby from: theartofmathematicspodcast.com Can you find a coordinate M:(a,b) such that |OM|=|MA|=k, with O:(0,0) & A:(20,20) and k an integer? You should be able to listen in at the end of March #talkingmaths #mathsky

Happy half term holidays! I am celebrating by releasing another episode of #TheMathematicianspod. Find out about Systems A & B today with a double bill of 'Babylonian' Mathematicians. www.podbean.com/eas/pb-vjqv3... #talkingmaths #mathsky #mathspodcast

New oeis.org/A393283 just dropped. Take a triangular array starting (0),(1,0) Now draw a ray from the tip down to the next term. Each new term is the sum of terms on or adjacent to this ray. 0 1,0 1,1,0 2,3,2,0 Try this in mod 2 for a #cellularautomata. #mathsky #sequences #recreationalmaths

I just lost a game of rock paper scissors, four - nill, to a lobster

Here is a full set of iceberg diagrams. The score is how many full squares there are, counting the ones above the waterline as positive and the ones below the waterline as negative. Given a list of integers (eg 8, 6, 0, -5, -8) can you make an iceberg that will produce exactly that list? #MathSky