James Crawford 🇦🇺🇸🇪

I study environmental radioactivity, reactive transport in fractured rock, & deep geological storage systems. ChE PhD. I tweet about things I find interesting.

[James Crawford 🇦🇺🇸🇪 @JamesNCrawford]

Had my own poster presentation with a little side project I have been playing around with for a year, or so #Mig17BCN

[James Crawford 🇦🇺🇸🇪 @JamesNCrawford]

@Scite Is there a timeline for Scite MCP approval in the ChatGPT App Directory? Dev mode only (no cross-chat memory) seems quite limiting for citation workflows

[James Crawford 🇦🇺🇸🇪 @JamesNCrawford]

@drvolts Does the mineralization reaction reduce aquifer porosity over time until the injection well is clogged? How much can be sequestered before that occurs?

[James Crawford 🇦🇺🇸🇪 @JamesNCrawford]

@RSudowe @slabbxo Very nice!

[James Crawford 🇦🇺🇸🇪 @JamesNCrawford]

@JPMajor @AerojetRdyne @NASAKennedy @NASA The F-1 engines were truly enormous - standing under the few that remain in museums is quite awe inspiring

[James Crawford 🇦🇺🇸🇪 @JamesNCrawford]

@rahmstorf Hydrothermally altered belemnites maybe?

[James Crawford 🇦🇺🇸🇪 @JamesNCrawford]

Maybe it was meant to be safe neutral ground for a meeting, but the use of Po210 traceable to RU seems like it was meant to send a big F.U. message to whomever was taking notice.

https://t.co/nrfONq8dbm

[James Crawford 🇦🇺🇸🇪 @JamesNCrawford]

A less known detail of the assassination of Alexander Litvinenko in London, 2006 is that it was at the former Millennium Hotel in Grosvenor square, London. This was no more than 200-300m from the location of the US Embassy at the time (1/2)

[Jim Sciutto @jimsciutto]

7/ There is far more. Alexander Litvinenko, poisoned to death with radioactive polonium in a London hotel cafe by two Russian operatives, one of whom went on to serve in the Russian Duma. He’s still serving there.

[James Crawford 🇦🇺🇸🇪 @JamesNCrawford]

@MedCrisis My personal favourite from Wipeout 2097: https://t.co/MXpIsQdbG9

[James Crawford 🇦🇺🇸🇪 @JamesNCrawford]

@RSudowe @Belaokmyx It would be neat to make a blind prediction first (also for the heavy metal content) using PhreeqC

[James Crawford 🇦🇺🇸🇪 @JamesNCrawford]

OK I'm obviously biased, but this is probably one of the most gorgeous articles I've ever read (for those interested in the interface between fluid mechanics & food)...

[James Crawford 🇦🇺🇸🇪 @JamesNCrawford]

@GlenneDrover I remember reading about this first ca. 1989-90 & I thought ”what an awesome concept”. It disturbs me that it has taken such a long time to gain traction as a commercial product

[James Crawford 🇦🇺🇸🇪 @JamesNCrawford]

Quite glad I wore my IceBugs out for morning run today… sheets of wet ice at my local oval

[James Crawford 🇦🇺🇸🇪 @JamesNCrawford]

@nuclearkatie @MuppetString It is indeed included in Vattenfall's environmental product declaration, although I think they categorize it as part of "core operations/infrastructure": https://t.co/rigjvR4zY9

[James Crawford 🇦🇺🇸🇪 @JamesNCrawford]

@MagWes @storklompen @AndersWijkman Jag tror också att det är inte helt trivialt att övertyga externa forskare med relevant expertis att ta på sig en extremt deltaljerat & noggrann utfört experimentellt program som skulle kunna uppfattas som mindre intressant eller rentav en återvändsgränd forskningsmässigt

[James Crawford 🇦🇺🇸🇪 @JamesNCrawford]

@MagWes @storklompen @AndersWijkman De ursprungliga resultaten är visserligen intressanta men mekanismen som författarna förslår är långsökt & det finns enklare förklaringar. Det är definitivt intressant & värt att forska vidare på men ser inte det som en "show stopper"

[James Crawford 🇦🇺🇸🇪 @JamesNCrawford]

@MagWes @storklompen @AndersWijkman För att det ska vara en fortlöpande korrosion som inte stannar av efter ytpassivering behöver man dessutom åberopa en korrosionsprodukt av Cu-O-H som har inte hittills oberverats experimentellt eller i naturen & som kvantkemi beräkningar visar bör vara instabila och inte bildas.