Richard Beanland
@richbean0.bsky.social
Likes mucking about with atoms, crystals and diffraction, using electrons mainly
Reposted by Richard Beanland
Space without the space...
(Credit: xkcd)
(Credit: xkcd)
July 14, 2025 at 5:35 PM
Space without the space...
(Credit: xkcd)
(Credit: xkcd)
Reposted by Richard Beanland
A small flaw in an online proof system can have catastrophic consequences.
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.
www.quantamagazine.org
July 9, 2025 at 8:04 PM
A small flaw in an online proof system can have catastrophic consequences.
Reposted by Richard Beanland
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...
July 8, 2025 at 11:40 AM
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...
Reposted by Richard Beanland
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/
🔬🧪
🔬🧪
🚨 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
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
July 2, 2025 at 2:04 PM
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/
🔬🧪
🔬🧪
July 3, 2025 at 7:14 AM
Reposted by Richard Beanland
🚨 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
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
July 2, 2025 at 2:01 PM
🚨 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
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
Reposted by Richard Beanland
"When you outsource the thinking, you outsource the learning." deplet.ing/the-copilot-...
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...
deplet.ing
June 24, 2025 at 7:57 PM
"When you outsource the thinking, you outsource the learning." deplet.ing/the-copilot-...
Reposted by Richard Beanland
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/
10/
June 27, 2025 at 8:07 PM
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/
10/
Reposted by Richard Beanland
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
#crystallography #RealTimeChem
Ones again traditional soundtrack for these structures:
www.youtube.com/watch?v=C446...
1/2
June 23, 2025 at 8:13 AM
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
#crystallography #RealTimeChem
Ones again traditional soundtrack for these structures:
www.youtube.com/watch?v=C446...
1/2
Reposted by Richard Beanland
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
Richard Dronskowski: Everything you always wanted to know about the Debye–Waller factor but were afraid to ask ##DebyeWallerFactor##ThermalMotion##AnisotropicDisplacementParameters@RWTH...##IUCrhttps://journals.iucr.org/paper?S2052252525004968
Everything you always wanted to know about the Debye–Waller factor but were afraid to ask
Combining improved diffraction methods, modeling approaches and advanced computations allows for a detailed understanding of atomic thermal motions in crystals. Thus, the Topical Review by Hoser & Madsen covers the Debye–Waller factor, the importance of anisotropic displacement parameters, and the interplay of experiment and theory to accurately capture collective atomic vibrations in molecular crystals.
journals.iucr.org
June 7, 2025 at 9:36 PM
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
Reposted by Richard Beanland
#MEDPore2025 #tiling nr. 7 (Bahia palace, Marrakech): they knew the truth on octahedral tilting in perovskites all along... #crystallography #BraggYourPattern #perovskites
May 15, 2025 at 3:22 PM
#MEDPore2025 #tiling nr. 7 (Bahia palace, Marrakech): they knew the truth on octahedral tilting in perovskites all along... #crystallography #BraggYourPattern #perovskites
Reposted by Richard Beanland
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.
May 5, 2025 at 6:56 AM
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.
Reposted by Richard Beanland
...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.
To me computation seems much better as a focused tool for understanding a material of interest, rather than a discovery method.
May 1, 2025 at 9:47 PM
...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.
To me computation seems much better as a focused tool for understanding a material of interest, rather than a discovery method.
Reposted by Richard Beanland
Pocket guide to materials discovery calculation methods (repost from the other place)
May 1, 2025 at 8:17 AM
Pocket guide to materials discovery calculation methods (repost from the other place)
Reposted by Richard Beanland
Holy sh*t. This is a real xkcd, not funny, disturbing, and also one that must be shared
https://xkcd.com/3081/
https://xkcd.com/3081/
April 25, 2025 at 5:16 PM
Holy sh*t. This is a real xkcd, not funny, disturbing, and also one that must be shared
https://xkcd.com/3081/
https://xkcd.com/3081/
Reposted by Richard Beanland
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
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
scim.ag
April 18, 2025 at 8:56 PM
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
Reposted by Richard Beanland
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 🧪⚗️
Nevertheless, I write this thread to chemistry faculty job seekers in the United States. #chemjobs #facultychemjobs #chemsky 🧪⚗️
April 14, 2025 at 8:41 PM
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 🧪⚗️
Nevertheless, I write this thread to chemistry faculty job seekers in the United States. #chemjobs #facultychemjobs #chemsky 🧪⚗️
Reposted by Richard Beanland
Reposted by Richard Beanland
Reposted by Richard Beanland
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
March 25, 2025 at 6:55 PM
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
Reposted by Richard Beanland
March 18, 2025 at 8:44 PM
Reposted by Richard Beanland
University administrations are largely a scam and should be sized down.
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
academic.oup.com
March 9, 2025 at 4:56 AM
University administrations are largely a scam and should be sized down.
Reposted by Richard Beanland
George Sheldrick will be missed🕯️🕯️🕯️#SHELX #crystallography #education
February 22, 2025 at 12:42 AM
George Sheldrick will be missed🕯️🕯️🕯️#SHELX #crystallography #education
Reposted by Richard Beanland
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...
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...
www.nature.com
February 1, 2025 at 1:05 PM
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...
Reposted by Richard Beanland
