One problem with getting rid of (useful) terminology is - what do you replace it with? What could I use instead of ‘reflection’ ? Spot? Peak? Secondary beam? Reciprocal lattice vector (oh no, can’t say lattice either)… I quite like ‘reflexion’ but most see that as archaic

How Big Can The Periodic Table Get Before Students Call Bullshit?

PDF: www.immaterialscience.org/s/Longest-Pe...

The motto of the French Navy, I understand

And the bear has now been released from the ragged staff (symbol of Warwick for centuries en.m.wikipedia.org/wiki/Bear_an...) and takes up a POWER stance

Space without the space...

(Credit: xkcd)

Computer Scientists Figure Out How To Prove Lies | Quanta Magazine An attack on a fundamental proof technique reveals a glaring security issue for blockchains and other digital encryption schemes.

A small flaw in an online proof system can have catastrophic consequences.

July issue @actacrystc.iucr.org The cover article outlines lessons that can be learned from the the profiles and quality of refined MicroED structures #MicroED #electrondiffraction #ED #qualityindicator #bestpractice #cryoEM #Goldstandard #openaccess #IUCr journals.iucr.org/c/issues/202...

Here is a really nice contribution from Haroon Qaiser a grad student in @expmicromech.com, and a wide team, from Aachen, Oxford & Brno - where we systematically explore how best to form electron channeling contrast patterns (ECPs) and images (ECCI) in the scanning electron microscope 1/

🔬🧪

@bmatb.expmicromech.com

Figure 1 from the paper which shows the electron column and microscope layout required to collect and understand and electron channelling pattern

🚨 New Preprint: "AstroECP: towards more practical Electron Channeling Contrast Imaging"
M. Haroon Qaiser, Lukas Berners, Robin J. Scales, @tbizh95.bsky.social, Martin Heller, Jiri Dluhos, Sandra Korte-Kerzel, @bmatb.expmicromech.com

arxiv.org/abs/2507.00354

The Copilot Delusion Disclaimer: This post was written May 2025, and the arguments apply to AI code capabilities at this time. The arguments around lack of competence are certainly likely to become less prevalent-while th...

"When you outsource the thinking, you outsource the learning." deplet.ing/the-copilot-...

their theory would then lose touch with real life and turn into pure speculation devoid of any scientific value. And if an experimenter works without theory, he would merely perform useless experiments, which are numerous as it is and which, of course,

10/

A phosphine oxide fragment of a crystal structure.

Two phosphine oxide structures in a week, one was intentional, one not really or rather really not.

#crystallography #RealTimeChem

Ones again traditional soundtrack for these structures:
www.youtube.com/watch?v=C446...

1/2

While diving into this beautiful topic is important to remember that ADPs are neither 'thermal parameters' nor 'thermal ellipsoids' (as implied in the acronym ORTEP): they model displacements in the averaged structure without discriminating between thermal and static contributions #crystallography

The President's Brain is Missing The President's Brain is Missing is a storyline featured in Series 1, centring around President Ronald Reagan's brain escaping the White House. As his advisor Ed Meese struggles to prevent the brainle...

It was visible from the other side of the Atlantic spittingimage.fandom.com/wiki/The_Pre...

Tiling of tilted squares in black, yellow, blue and grey. The empty spaces, with shape of horizontally and vertically oriented rhombuses, are reminiscent of the orthorhombic structure of CsPbBr3 perovskite.

#MEDPore2025 #tiling nr. 7 (Bahia palace, Marrakech): they knew the truth on octahedral tilting in perovskites all along... #crystallography #BraggYourPattern #perovskites

Since Brexit became a reality & the transition started (which still hasn’t finished) every stage has been a shit show. Government has been under prepared at each change & more barriers to trade imposed on imports and exports. The right wing press doesn’t write about it because it doesn’t suit them.

...but them being hard to make means they will have to be even better at their job to make manufacture worthwhile. A difficult conundrum to solve.

To me computation seems much better as a focused tool for understanding a material of interest, rather than a discovery method.

A table comparing the computational power of HPC and a furnace

Pocket guide to materials discovery calculation methods (repost from the other place)

US PhD program timeline: 1. Meet adbisor 2. Research proposal 3. Qualifying exams 4. Propose dissertation 5. Reseaech and write 6. Submit 7. Defend The last two steps in the timeline are crossed out and replaced -- in red -- by: 6. Get grabbed of the sidewalk by masked governnent agents 7. Be whisked out of the state before a judge has time to intervene 8. ????

Holy sh*t. This is a real xkcd, not funny, disturbing, and also one that must be shared

https://xkcd.com/3081/

NIH freezes funds to Harvard and four other universities, but can’t tell them Move follows broader White House attack on Harvard funding and stop-work orders to contractors

After freezing all grants to Columbia University last week, the National Institutes of Health is now stopping grant and contract payments to Harvard University and four other universities. scim.ag/4ikYp2T

There is no good time for bad news and today is no different than any day in our recent time.

Nevertheless, I write this thread to chemistry faculty job seekers in the United States. #chemjobs #facultychemjobs #chemsky 🧪⚗️

Carney’s Checkmate: How Canada's Quiet Bond Play Forced Trump to Drop Tariffs — Walla Walla Democrats Let’s talk about the moment Donald Trump blinked. It wasn’t loud. It wasn’t a tweetstorm or a rally rant. When the tariff threats that had the world on edge—125% on China, 25% on Canada’s autos, a glo...

Canada for the win—share it:

www.wallawallademocrats.com/other-voices...

Tariffs xkcd.com/3073

This is truly wonderful... The gems of science history, ethical and intellectual depths surrounding the incredible character of Kathleen Lonsdale, so beautifully condensed in just above 10'. Absolutely worth watching for anyone, and a must if her name sounds new to any chemist. #womeninScience

One should not put memes to a reply to reviewers, right?

#crystallography

On the responsibilities of intellectuals and the rise of bullshit jobs in universities You may never have considered yourself to be one. Why would you? But if you’re reading this, there is more than a likelihood that you are one. If you’re a

University administrations are largely a scam and should be sized down.

George Sheldrick will be missed🕯️🕯️🕯️#SHELX #crystallography #education

Roses are red
Electrons are green
Unlike photons and neutrons
They have half-integral speen

Atomically resolved imaging of radiation-sensitive metal-organic frameworks via electron ptychography - Nature Communications This study investigates optimal 4D-STEM data acquisition parameters for low-dose electron ptychography, achieving near-atomic-resolution ( ~ 2 Å) reconstruction at electron doses of ~100 e−/Å2 on high...

What a start of 2025 in #MOF #TEM analysis! I just saw a second stunning work... take-home keywords: 'riCOM' and 'Ptychography' 🌟 Check them out: really fantastic 4D-STEM stuff that would have been sci-fi just a few years ago. pubs.rsc.org/en/content/a... ; www.nature.com/articles/s41...