Helen Mitchell
@HJMitchell69
Essex girl in exile. I draw molecules on whiteboards for a living. "We thank you Lord for the twin pillars of civilization: Christianity and cricket."
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This is fab!
Major update to our map of Anglo-Saxon London... we've now added etymologies for each place name... so you can find out what your bit of London used to be called.... and why. (High-res version on link.) londonist.substack.com/p/mapping-angl…
Would you like an early Christmas present? Would you like these pin badges? All you have to do is RT this tweet & I will select a winner one week from today. Good Luck.
As #autumn days get shorter and cooler, deciduous leaves break down their green chlorophyll to let other pigments shine! 🍃💨🍂 Reds and purples from anthocyanins like cyanin and its derivatives such as chysanthemin. These molecules also lend their colors to many species of…
Eighteen(!!)-year-old William Henry Perkin, born #OnThisDay in 1838 (Mar 12), accidentally synthesized the first commercial organic synthetic dye while attempting to make quinine from coal tars. #chemistry The procedure for mauveine, its name originating from the French for the…
What a way to blast into the New Year 💥🚨🔔 Locomotives up and down the country blew their whistles for #railway200 And @RailwayMuseum Shildon weren’t going to miss out #WhistleUp200
Happy Centenary The Shipping Forecast. Here is a map showing all the names & where they are.
Tesco, good, occasionally busy later. Sainsbury’s, moderate to good, rough in toilet roll aisle. Asda, light to moderate, heavy crowds by evening. M&S and Co-Op, fair. Waitrose, fair to moderate. Lidl, rough at first, easing later. And that’s the end of the Shopping Forecast.
💚🩵💙💜❤️🧡💛
All the right colours of the rainbow, but not necessarily in the right order.¹ Inspired by @DeclanFleming's beautiful beyond traffic lights demo youtube.com/watch?v=LxBNaA… Here's a fructose version. ¹E. Morecambe, E. Wise and A. Previn, dailymotion.com/video/xds7am, 5:42-6:18 (1/2)
We are inviting applications for the position of a Lecturer in Organic Chemistry at the @univofstandrews, Deadline Jan 22, 2025. RT appreciated. @Chemjobber. See here for more details: jobs.ac.uk/job/DKW116/lec…
WIN DINNER ON A TRAIN & SIGNED BOOKS Win a private booth for 2 on board @supperclubtube restaurant + all 3 of my books signed. 2 runner ups win calendars Follow, like & RT to enter Ends Mon 25th 23.59 Random winners chosen Wed 27th from X, Instagram & Bluesky UK ONLY #GiveAway
Hands up if you or a member of your family have benefited from the invention of insulin pens 🖐! Now we know who to thank!
The Stirling doctor who changed the lives of diabetics bbc.in/3Yq9Cr0
The Sun at the same time every day for a year ☀️
#OnThisDay 1983: Micro Live visited Datarama - the Radio West show that was broadcasting computer software programs over the airwaves. Talk about a wireless download...
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An Announcement: "All Good Things..." 🧵 Margaret and I came out of retirement back at the very start of 2022. At that time, schools were struggling with staff shortages and the then Education Secretary launched a campaign to encourage retired teachers back into classrooms. 1/
Q: What is a pirate's favourite amino acid? A: Arrrrrginine! Q: And what is the one letter code for that amino acid? A: Arrrrr! (R)
It’s national talk like a pirate day 😅, see if you can slip a bit into conversation with someone, also who decides these things.. is there a think tank? 🤔
Excited to share that I've received funding from the RSC Inclusion and Diversity Fund to run a series of podcasts aimed primarily at the LGBTQIA+ STEM community. Please share this as widely as possible as I'm looking for podcast interviewees!!
Tomorrow, a new Traveling Turtle adventure. We’re going long-form/literary. In April 1891, the most famous fictional Londoner set off on what his creator hoped to be his final journey, to an appointment with nemesis at Reichenbach. We’re following his footsteps. #FinalProblem2024
Who better to turn it up to 11? 🎶 Organist @annalapwood tells us about performing at the #DoctorWho Prom and her Doctor Who memories... 🎧 Listen to Anna perform with @BBCNOW and @LPChoir on @bbcsounds from 7PM BST.
As rising levels of CO2 dissolve in our seas many species, especially those in coral ecosystems, are unable to adapt to increasingly acidic waters. Andrea Sella explains this with a beautiful but alarming demonstration.
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