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@jwmurray.bsky.social

23 Followers  |  306 Following  |  4 Posts  |  Joined: 16.08.2024  |  1.5395

Latest posts by jwmurray.bsky.social on Bluesky

Two diffraction photographs of B-DNA

Two diffraction photographs of B-DNA

I was not aware of that. Astbury's later student Elwyn Beighton got B-DNA diffraction photos in 1951 which are nearly as good as the famous "photograph 51". Astbury never published them, nor apparently did anything with them (from The Man in the Monkeynut Coat by Kersten Hall).

10.11.2025 13:08 — 👍 2    🔁 0    💬 0    📌 0
In 1916 the BMJ published an article about the work done by James Shearer, an American physician working in the British Army as a sergeant (because he had no British qualification). He had described a "delineator" which was better than x rays for portraying gunshot wounds. This caused a sensation and a lot of interest — but on investigation the work was found to have been invented. The BMJ published a retraction, but Shearer was tried by court martial and sentenced to death by firing squad.

In 1916 the BMJ published an article about the work done by James Shearer, an American physician working in the British Army as a sergeant (because he had no British qualification). He had described a "delineator" which was better than x rays for portraying gunshot wounds. This caused a sensation and a lot of interest — but on investigation the work was found to have been invented. The BMJ published a retraction, but Shearer was tried by court martial and sentenced to death by firing squad.

Next time an institution tells you how seriously it takes research misconduct, ask them if it's *this* seriously. www.bmj.com/content/297/...

13.10.2025 20:12 — 👍 640    🔁 233    💬 17    📌 21
Fermilab | History and Archives | People

"...this new knowledge has all to do with honor and country but it has nothing to do directly with defending our country except to help make it worth defending." RR Wilson congressional testimony justifying Fermilab (1969). history.fnal.gov/historical/p...

04.10.2025 19:44 — 👍 1    🔁 1    💬 0    📌 0
HOMEWORK MACHINE The Homework Machine, oh the Homework Machine Most perfect contraption that's ever been seen. Just put in your homework, then drop in a dime, Snap on the switch, and in ten seconds' time, Your homework comes out, quick and clean as can be. Here it is — "nine plus four?" and the answer is "three." Three? Oh me ... I guess it's not as perfect As I thought it would be.

HOMEWORK MACHINE The Homework Machine, oh the Homework Machine Most perfect contraption that's ever been seen. Just put in your homework, then drop in a dime, Snap on the switch, and in ten seconds' time, Your homework comes out, quick and clean as can be. Here it is — "nine plus four?" and the answer is "three." Three? Oh me ... I guess it's not as perfect As I thought it would be.

shel silverstein on the LLM, 1981

10.06.2025 19:34 — 👍 1860    🔁 691    💬 10    📌 15
line graph of a CTF function, with initial guess and final refined parameter curves.

line graph of a CTF function, with initial guess and final refined parameter curves.

bitmaps of CTF modified image of a dartboard, corrected image (with phase flipping), and weiner filtered corrected image.

bitmaps of CTF modified image of a dartboard, corrected image (with phase flipping), and weiner filtered corrected image.

After some cajoling, got Gemini to vibe code cryoEM CTF fitting and correction. Other CTF fitting codes are available...

15.04.2025 20:23 — 👍 1    🔁 0    💬 0    📌 0
Post image

With GPT-4o I vibe-coded a crystal structure factor calculation, with refinement of atomic positions and output of sigmas. (This 1D demo extends to 2D with one more prompt). Very impressed.

15.04.2025 05:35 — 👍 1    🔁 0    💬 0    📌 0

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