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Mathematician, koala fan, @aperiodical triumvir https://t.co/3PrwCEBISL. He/him

696 Following   3,051 Followers   20,787 Tweets

Joined Twitter 3/26/07


An expert opinionon last nights clouds: An excellent example of a gust front ahead of the shower visible on the lef… https://t.co/I5rGH5IYj7
Retweeted by Christian Lawson-PerfectSupperman. #AddALetterImproveASuperhero
7/11
2020
Saying things like: “But I don’t see you as disabled” “Disabled - why would you use that word to describe yourself… https://t.co/H7S4lhuj0l
Retweeted by Christian Lawson-Perfect @DavidKButlerUoA @MathforLove @JSEllenberg Yeah, I've got no idea where the red text isYesterday's Public Lecture 'The Black Heroes of Mathematics' by Dr. Nira Chamberlain, is now online for you to watc… https://t.co/z6TUuAgeIg
Retweeted by Christian Lawson-PerfectBetter Plots and Presentations A thread Look at this scatter plot. Are there two sets of data or three? Well that… https://t.co/GZ1qI5PTb5
Retweeted by Christian Lawson-Perfect
7/10
2020
We are providing 35,000 COVID-19 safety packs for our students and University colleagues. https://t.co/ZVkNid5jbj
Retweeted by Christian Lawson-Perfect
7/9
2020
The talks from EAMS 2020 are now online! You can see the whole list at https://t.co/4ooA93Xpp6 Here's a thread of all 36 talks...
Retweeted by Christian Lawson-Perfect
7/8
2020
there's a really great joke about non-constructive proofs
Retweeted by Christian Lawson-PerfectVery excited for the first in @PalaceOfScience's new series of talks about #Diversity in #STEM tomorrow evening. Jo… https://t.co/x7msYvMcDM
Retweeted by Christian Lawson-Perfect
7/7
2020
That's nowhere near an accurate transcription of this video but now I''ve got the opening lyrics for my new album https://t.co/MYLH6s2BLqNot a single place name on this map sounds real. https://t.co/VMdBCorF42A while ago, I wrote this equation, which has the same solution when rotated 180. At the time, I wrote a blog pos… https://t.co/i0kisvt1G4
Retweeted by Christian Lawson-Perfect
7/6
2020
@mathsjem @El_Timbre I'm a big fan of those pictures.
7/4
2020
@evelynjlamb I worry that if someone in a restaurant kitchen is contagious, they're going to infect a lot more peop… https://t.co/XLhQukSdnn @FergusPowell @gloombario Yep, that's the unexpectedly awkward wrinkle I wanted to shareExplain why you'll never have to carry a 9 when doing long multiplication
7/3
2020
Trefoil knot https://t.co/VVagsQLP4n
Retweeted by Christian Lawson-PerfectBased on the number of out of office replies I'm getting, it looks like the answer is yesAbout to discover if I can send an email BCCed to over 400 people @aperfect "story"
7/2
2020
They're by @realKatePoirier and you can get your own at https://t.co/nT91YLtZaGMy "mathematicians for inclusion" and "mathematicians for change" stickers have finally arrived! https://t.co/XEbtlvgUxAWe're going to run a Numbas training session for beginners at 10:00 BST on July 15th. Find more information and reg… https://t.co/2xgxAv4wrl
Retweeted by Christian Lawson-Perfect
7/1
2020
@katemath wow. "Deeply problematic" is an understatement!They said: Cauchy-Schwartz. YouTube heard: koshish warts.Good article and I'm gobsmacked at this: "A recent freedom of information request found that only eight universitie… https://t.co/9Yj0SiIsou
Retweeted by Christian Lawson-Perfect
6/30
2020
@icecolbeveridge which episode? @robinhouston @panlepan I've definitely looked askance at 39 in the past @robeastaway can I wave my hands at having identified that point and say I've solved the problem? Feels a bit like… https://t.co/SHHos781gY @robeastaway A knowledge of the rule for deciding who serves is what I'm lackingI've just delivered my talk on inclusive e-assessment at @EAMSConf. The video, transcription, and references are on… https://t.co/uB02TSFHLdFurther to this: about 11pm last night we heard a loud argument going on on our street. Two women really having a g… https://t.co/6S3DXIrWZZ
Retweeted by Christian Lawson-Perfect
6/29
2020
This is a very good book https://t.co/JOaOjyAeOX @sangwinc That's brilliant. It winds me up that my daughter's alphabet jigsaw is cut so that some letters can fit in more than one place. @LucasVB But I have ℵ₁ wishes
6/28
2020
No idea why my phone completed @pecnut to @pecnuts @mscroggs @pecnuts never mind hats, did you know there's a latex package for ironing symbols? https://t.co/8MYOH3JUyr @roger_mansuy Incroyable @roger_mansuy J'aime beaucoup le fer à repasser! Je vais l'utiliser moi-même.Folding Sierpinski carpet with Miura fold. #3dmodeling #origami #Miurafold #Sierpinski #b3d https://t.co/6HVWfxpFfS
Retweeted by Christian Lawson-PerfectI wrote a script to simulate the Miura fold in Blender. #b3d #sverchok . gist: https://t.co/Uw6zJyWM2i https://t.co/Cdi3LbA80g
Retweeted by Christian Lawson-Perfect
6/27
2020
@Kit_Yates_Maths I'd really like a public spreadsheet listing named theorems or objects, next to alternative names. Might set that up @ptwiddle @FergusPowell I bet you've got a hand-me-down TeX template as well, you monster @FergusPowell Zoinks! What does your supervisor do? I'd hope every supervisor would recommend a reference management system these days
6/26
2020
If you’re METAGROBOLIZED, then you’re utterly bamboozled.
Retweeted by Christian Lawson-PerfectOf course, there is widespread gender bias, in favour of men, so this cherry-picking is either ignorant or dishones… https://t.co/YynydcIHGOThe chance of having 7 or more women is just over 17%. (https://t.co/NT3F72taCn) So even if there was no gender bi… https://t.co/FthFWALLJkThe council cabinet has 10 members. "Balance" would be 5 men and 5 women (assuming a gender binary...) What are th… https://t.co/Qe2h50Gd81Let's take Greg in good faith and suppose he wants a meritocracy, where gender isn't considered. So each position h… https://t.co/nJVUvukcWKWhat do you think the difference between "Maybe" and "Not sure" is? https://t.co/YNGIWnCGeeVery sad indeed. EU Sixth Form students, having done GCSEs & A-levels here, but only having been in UK for 3 years,… https://t.co/dFyi0wBgag
Retweeted by Christian Lawson-Perfect @northumbriana @NewcastleMedSch Me too! How much worse than chance did you do on the rearranging-colours task?
6/25
2020
How high does zoom's market cap have to get before they let you use a 24-hour clock in the date picker?Me: storytelling is a wonderfully creative activity. Starting from a basic plot I can refine the story each time I… https://t.co/UCjd2hW5W6 @mathforge @bbarber_ @peterrowlett "The Haskell road to logic, math and programming" (https://t.co/kNEtzCZ3W5) is v… https://t.co/kzfJGqb3kS
6/24
2020
Try to clear your mind and answer this as quickly as possible: In a certain tower block, half the flats have a sin… https://t.co/aVhSernQ5k
Retweeted by Christian Lawson-PerfectJe voulais peut-être dire 'devoirs', je ne sais pas le mot justeThe difference between necessary and sufficient conditions: they say only mad dogs and Englishmen go out in the mid… https://t.co/DEPx4n9eYCMathématicien(ne)s travaillant en universités françaises: est-ce que vous faites des évaluations sur ordinateur? Qu… https://t.co/EY3NymWkcJMathematicians working in French universities: do you do any kind of computer-based assessment? What systems do you use?My turbo professional @EAMSConf hosting setup. https://t.co/xgRK5puGyC
6/23
2020
INACTION PARROTS is an anagram of PROCRASTINATION, and yes I did work that out when I should have been doing someth… https://t.co/V4YZBEf3lW
Retweeted by Christian Lawson-Perfect
6/22
2020
Very much enjoying using @explainevrythng to record my @EAMSConf talk. First run through, with lots of pauses and u… https://t.co/GJmOQlQegZ @k_houston_math I'm going to hang on until we're back with the quadrivium
6/21
2020
@aperiodical A #piku about the sum of the reciprocals of the square numbers: π × π is six times greaterSo if masks look so good on paper, do they work in practice? They sure seem to! In countries with universal mask-w… https://t.co/eaAQMtNeai
Retweeted by Christian Lawson-Perfect
6/20
2020
@El_Timbre Great, thanks.Currently stuck in a very British conversation that could be replaced by the following program: 10 ECHO "Great, thanks." 20 GOTO 10
6/19
2020
We're live on YouTube for today's colloquium on the history of African Americans in the mathematical sciences. Tod… https://t.co/JgrnZkkWj8
Retweeted by Christian Lawson-Perfect @permutans here's my code: https://t.co/qVtqrb6IGe Looks like a pretty brute force program!Problem: people signing up for a conference sometimes make typos in their email address. Solution: bulk email the… https://t.co/I9wdawlCBL
6/18
2020
Now open for applications. The Society is offering a number of Early Career Fellowships of between 3 and 6 months t… https://t.co/7X0gg7SRhT
Retweeted by Christian Lawson-PerfectFor the 169th day of the year: 169 is the reverse of 961. The same is true of their square roots... √169=13 and √961=31.
Retweeted by Christian Lawson-PerfectThe programme for EAMS 2020 is now online! https://t.co/4ooA93Xpp6 It's packed full of e-assessment wisdom, softwar… https://t.co/TxSj91GXd3
Retweeted by Christian Lawson-PerfectI keep seeing photos of 'packed' beaches and parks in the news. I'd like to see how that compares to the density of… https://t.co/kuhGzO7YHO
6/17
2020
@chalkdustmag @SparksMaths sorry, the version of me that has abundant spare time isn't on twitter
6/16
2020
So, please spread the word: @EAMSConf is a free, entirely online conference about e-assessment in mathematical subj… https://t.co/VlIJR5h0fT
Retweeted by Christian Lawson-PerfectWhen we started planning to run @EAMSConf online this year, one of my main reasons was how hard it is for many to t… https://t.co/EH2Bsn2mo7
Retweeted by Christian Lawson-Perfect
6/15
2020
So, please spread the word: @EAMSConf is a free, entirely online conference about e-assessment in mathematical subj… https://t.co/VlIJR5h0fTWhen we started planning to run @EAMSConf online this year, one of my main reasons was how hard it is for many to t… https://t.co/EH2Bsn2mo756,000 people are still living in buildings with flammable cladding. 56,000 living in fear for their lives - every… https://t.co/bKOOf6Wilc
Retweeted by Christian Lawson-Perfect
6/14
2020
Nintendo predates Dracula by 8 years.
Retweeted by Christian Lawson-PerfectThis is one of the first paintings I can remember noticing and appreciating. Such a calming scene. https://t.co/zbCOOQue4POr watch this short video demonstrating the major new additions: explore mode, menu mode, and alternative answers. https://t.co/CZMQWZaelh
Retweeted by Christian Lawson-PerfectWe're very pleased to announce the release of Numbas v5.0. This release includes a radically new way of presenting… https://t.co/4xKXLKKFld
Retweeted by Christian Lawson-Perfect
6/12
2020
Pogs! Memories! Who else got a set of Sunderland City Council pogs from school with messages about refuse collectio… https://t.co/RQszdbaIGn1/ I've been speaking with a neurodivergent (#dyspraxic) student who is are (rightly) worried that an academic care… https://t.co/nBXG8p8srK
Retweeted by Christian Lawson-Perfect
6/11
2020
I want to try this with other triangle centres, particularly ones that can go outside the triangle https://t.co/LitEuD6EgXIf you are in math and wondering where to start your anti-racist work as we #ShutDownMath let this math librarian h… https://t.co/hGD5oZU6ZQ
Retweeted by Christian Lawson-PerfectI've taken the day off normal work to support the #Strike4BlackLives #ShutDownSTEM, but I've got the 2yo all day, s… https://t.co/kukL5JVY29Thank you @UKRI_News for responding to the questions raised through #myscienceenquiry. Get ready for a reality chec… https://t.co/oMsNK6bypp
Retweeted by Christian Lawson-Perfect @benjamindickman @DavidKButlerUoA @close Ah, I had 19 in it, which was wrong @DavidKButlerUoA @close It's not in the OEIS! 🤯Happening ALL DAY June 10 ➡️ As part of #Strike4BlackLives, people around the world are coming together to expand… https://t.co/MlDGdKYUIt
Retweeted by Christian Lawson-Perfect
6/10
2020
@d_yellowlees yeah, I'm interested but don't have the spare time this ThursdayAll the videos for the TALMO workshop are up and ready to be viewed at at https://t.co/MFl5kP25fP. Based on unique… https://t.co/svHlVYTpNd
Retweeted by Christian Lawson-Perfect @NowOverAndOut https://t.co/vDhEgNGz4f gives you a terminal.
6/9
2020
My colleagues Glenn Lauren Moore, @ierichard and I have worked on this statement regarding racial justice in UK Hig… https://t.co/z4vzsmnA1I
Retweeted by Christian Lawson-Perfect @d_yellowlees How often do you do this?
6/8
2020

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