Sarah Hart
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sarah-hart.bsky.social
Sarah Hart
@sarah-hart.bsky.social
Mathematician, speaker, author of Once Upon a Prime: the Wondrous Connections between Mathematics and Literature.
Former Gresham Professor of Geometry, Professor Emerita of Mathematics at Birkbeck https://www.bbk.ac.uk/our-staff/profile/8004985/sarah-hart
Reposted by Sarah Hart
A bit of #maths #history at the @ashmoleanmuseum.bsky.social makes the news!

Making mistakes in maths is not a new thing, by a long, long way, and is an essential part of learning.

🏛️🎓 #MathsInMuseums #MathsToday
Babylonian tablet preserves student's 4,000-year-old geometry mistake
A small clay tablet from the site of Kish in Iraq reveals a student calculated the area of a triangle incorrectly 4,000 years ago.
www.livescience.com
December 4, 2024 at 8:14 AM
Reposted by Sarah Hart
The online version of the @chalkdustmag.bsky.social 2024 Christmas card is now available at mscroggs.co.uk/blog/112.

It includes a link to a printable A4 version (@teachers: this can fill an end of term maths lesson!)

You can also still buy physical cards at mscroggs.co.uk/cards.
Christmas card 2024
As usual, I spent some time this November, designing this year's Chalkdust puzzle Christmas card (with some help from TD).
mscroggs.co.uk
December 4, 2024 at 9:05 AM
Reposted by Sarah Hart
Today’s poem is called ‘Love Excels’.
December 4, 2024 at 9:20 AM
Reposted by Sarah Hart
I'm here! I've moved over from X/Twitter. Some others Bridges/math-art people (I'm sure I'm missing some/many): @sarah-hart.bsky.social, @mathgrrl.bsky.social, @ayliean.bsky.social, @drmathart.bsky.social, @gelada.bsky.social.
November 29, 2024 at 11:03 PM
Reposted by Sarah Hart
Today’s poem celebrates Fibonacci Day. It’s called ‘Word Crunching’.
November 23, 2024 at 8:50 AM
Reposted by Sarah Hart
The Royal Society is on Bluesky! We are the independent scientific academy of the UK, founded in 1660 and dedicated to promoting excellence in science for the benefit of humanity. Follow us for the latest research, fascinating looks at science history, events and more: royalsociety.org
Welcome to the Royal Society | Royal Society
The Royal Society is a Fellowship of many of the world's most eminent scientists and is the oldest scientific academy in continuous existence.
royalsociety.org
November 18, 2024 at 3:47 PM
My daughter and I like to make each other treasure hunts where the clues are a mix of puzzles, riddles, and cryptography.

The little snack I made last time is more than meets the eye…
November 19, 2024 at 8:43 PM
Having trouble remembering which Naomi is sane and which one thinks vaccines cause time travel and squirrels are a government plot (probably)?

This simple rhyme should help:

If it’s Klein, you’ll be fine.
If it’s Wolf, watch yoursolf.
Hey Bluesky, I am excited by all the energy coalescing on this platform. It seems like a place for strategic thinking, which we badly need.

A few initial thoughts:

🧵
November 19, 2024 at 7:56 PM
Reposted by Sarah Hart
There have been several remarkable developments in combinatorics, my field of mathematics. A few weeks ago I gave a talk to a general mathematical audience in which I described six breakthroughs from the last five years.

www.youtube.com/watch?v=726O...
Timothy Gowers, Some recent developments in combinatorics
YouTube video by Clay Mathematics Institute
www.youtube.com
November 19, 2024 at 7:00 PM
Before deactivating, I posted on Twitter that I’m leaving for Bluesky.

I’m crushed to have to report that this has irked a person describing themselves in their bio as a “bronze-age AI gigachad”.

I get the feeling I’m not going to miss Twitter much.
November 18, 2024 at 2:59 PM
This is going to be amazing. Walthamstow Rock’n’Roll book club is the best thing about Walthamstow, and about Rock’n’roll, and about books and about life in general. And Mark Hart who runs it is the World’s Greatest Human. (Which of course is why I married him.) @rnrbook-club.bsky.social
Jeremy Deller presents:
Street-level Santa Claus
Walthamstow Trades Hall, Tuesday 17 December
Tickets: www.eventbrite.co.uk/e/street-lev...
November 17, 2024 at 11:49 AM
Reposted by Sarah Hart
#MathsEdPoetry day 2.
Both the @atmmathematics.bsky.social principle "the power to learn rests with the learner" and Daniel Willingham's phrase "learning is the residue of thought" point to the idea that learning is done by the learner. It is not something that can be done to them. From MT287.
November 17, 2024 at 9:13 AM
This is how the NYT describes Sudoku. Why disavow the lovely maths involved: logic patterns, etc - loads of good stuff? Really they mean “try this math game, minus the arithmetic”.

In fact there’s so much fun related maths I gave a Gresham lecture all about it

www.gresham.ac.uk/watch-now/ma...
November 17, 2024 at 9:25 AM
Reposted by Sarah Hart
You will know, despite it not being in my handle any more, that Math(s) is my homeland.
So I've made this starter pack of excellent math(s) communicators in case you'd like to follow them too.

go.bsky.app/8JvssAA
November 15, 2024 at 4:37 PM
Reposted by Sarah Hart
We're pleased to be included on this starter pack of math(s) communicators by the brill @kityates.bsky.social! Check it out for a who's who of talking math(s) in public: bsky.app/starter-pack...
bsky.app
November 15, 2024 at 4:51 PM
Reposted by Sarah Hart
Today’s poem is called ‘Monetisation’.
November 14, 2024 at 9:15 AM
Reposted by Sarah Hart
Good morning.

Word of the Day is as beautiful as it is underused. ‘Confelicity’ is finding joy in the happiness and success of others.
November 14, 2024 at 7:43 AM
Reposted by Sarah Hart
Measles… before vs after vaccines. See if you can spot the difference.
November 13, 2024 at 1:52 AM
My lovely friend @rachellampard.bsky.social and I read the #bookerprize shortlist every year before winner announced. What an amazing six books this year! Impossible choice but for us the beautiful Held, by Anne Michaels, edges it.
(Cameo role for #mathematician Hertha Ayrton a lovely bonus!)
November 12, 2024 at 8:22 PM
It’s #MathsWeekEngland !
To celebrate, I’m giving two free public lectures this week about the fascinating connections between mathematics and literature.

Warwick University tomorrow

warwick.ac.uk/fac/sci/math...

Royal Holloway Thursday

www.royalholloway.ac.uk/research-and...

Please share!
A mathematical journey through literature
Booking form for Sarah Hart's talk A Mathematical Journey Through Literature, which is taking place at Warwick Mathematics Institute on Wednesday 13 November 2024.
warwick.ac.uk
November 12, 2024 at 8:34 AM
Reposted by Sarah Hart
🗼Blast Off!🗼Maths Week England has launched today and here is the link to the first video from Alex Bellos mathsweekengland.co.uk?page_id=7470. There will be a daily puzzle via our socials or you can view the puzzles and solutions on the website www.mathsweekengland.co.uk #MWE24 #MathsToday
November 11, 2024 at 5:44 PM
Reposted by Sarah Hart
Here's a fun little "magic trick." Can you figure out how it works? Hint: even and odd numbers. I was thinking you could roll a die to determine how much to count each time. (I saw the trick was credited to Martin Gardner—true? Source?) www.youtube.com/watch?v=DaWc...
How Predictable Are You?
YouTube video by Quirkology
www.youtube.com
November 10, 2024 at 6:48 PM
Reposted by Sarah Hart
About 500 years ago, England switched from Roman numerals to our modern number system. But it didn't happen overnight, and many people struggled with the change. Here's me on Numberphile with the story of Philip Henslowe - theatre manager and numbers man. www.youtube.com/watch?v=OEGG...
The Change from Roman Numerals - Numberphile
YouTube video by Numberphile
www.youtube.com
November 8, 2024 at 5:48 PM
Reposted by Sarah Hart
New vid from Numberphile with @robeastaway.bsky.social chatting through lovely historical detail from 400+ years ago.
youtu.be/OEGGz1sCS5w?...
The Change from Roman Numerals - Numberphile
YouTube video by Numberphile
youtu.be
November 7, 2024 at 11:49 PM