Matthew Rowles

X-ray diffraction scientist. Technical specialist.
@[email protected]

[Matthew Rowles @xray_matt]

New paper out!

My program allows for the easy visualisation of powder #diffraction data in #pdCIF format. Now you can more easily share your data and refinements.

There are also macros to help make pdCIF files when using TOPAS.

https://t.co/1gKMUceATX

[Matthew Rowles @xray_matt]

@robertbarton110 @Leo_Puglisi6 When did he resign?

[Matthew Rowles @xray_matt]

One for you, Simon

@crypticcracking

https://t.co/UGfFizfq20

[Matthew Rowles @xray_matt]

@standupmaths one for you

[Matthew Rowles @xray_matt]

#fractal #howlongisyourruler

[Matthew Rowles @xray_matt]

At my local shops
@crypticcracking

[Matthew Rowles @xray_matt]

@SketchesbyBoze Thou shalt not make a machine in the likeness of a human mind.

[Matthew Rowles @xray_matt]

One for @crypticcracking

[Boze Herrington, Library Owl 😴🧙‍♀️ @SketchesbyBoze]

Stephen King: what if there was an *evil* clown

Mary Shelley: what if a corpse came to life

Edgar Allan Poe: oh no a bird!!!

[Matthew Rowles @xray_matt]

@khsacc This is the way. At one workshop I was at, a professor turned up to the pub at 11pm the night before his 10 am talk and proceeded to write his talk then. 😬

[Matthew Rowles @xray_matt]

@SBattenResearch Just went back over the chemistry prizes since 2000. Over half of them (to my physicist brain) are biochem.

[Matthew Rowles @xray_matt]

@SBattenResearch Yeah, struggling to see the physics connection.

[Matthew Rowles @xray_matt]

@evolutionarypsy @KathaSchmack You guys are getting paid?

[Matthew Rowles @xray_matt]

Some good value in here 🙂

[Shao-Liang Zheng @shaoliangzheng]

"four freely available tools that can be used in fundamental crystallography courses for #bachelor's and #master's curricula focused on #symmetry handling and #visualization: #BCS, #CSD, #VESTA & #Jmol." 😀😀https://t.co/jcNQdEtrtq @JApplCryst @IUCr #crystallography #education

[Matthew Rowles @xray_matt]

One for you @BarnabyJDixon

https://t.co/Os1aiX60hf

[Matthew Rowles @xray_matt]

#teamsibnite for me

I mean, it crystallises in Pnma, my favourite space group.

[Mineral Cup #MinCup @MineralCup]

#MinCup24 ROUND 1 MATCH 7: #Stibnite vs #Atacamite

Are you rooting for kohl, responsible for dramatic eyes for eons ? Or do you favour the newcomer found everywhere from the Statue of Liberty to bloodworm jaws?

VOTE: https://t.co/qaUvkSiaQA
RESULTS: https://t.co/jMKc1p53L7

[Matthew Rowles @xray_matt]

I'm in this picture.

[Physics Memes @ThePhysicsMemes]

Every astrophysics package ever #sciart

[Matthew Rowles @xray_matt]

@MineralCup Cranswickite.

Hydrated magnesium sulphate. Structure solved by powder diffraction and named after Lachlan Cranswick, the late great travelling crystallographer.

https://t.co/jODQ3Q5ems

[Physics Memes @ThePhysicsMemes]

huh #technology

[Matthew Rowles @xray_matt]

@stommepoes @CooleyCrypto @iavins No. It doesn't. It provides an extra data point. If you listen to the podcast, the author even says you can pronounce it how you like.

[Matthew Rowles @xray_matt]

@goldclusters @Robert_Palgrave Generally speaking, ~1 wt% is a good threshold, but depending on the system and data quality, you can go lower; I've quantified 0.05 wt% quartz in corundum.

You need to model it and collect good quality data.

[Matthew Rowles @xray_matt]

@goldclusters This is dodgy analysis. You need to actually do pattern modelling to show that there are are actually the phases present that you claim are there.

They're could be a shoulder on the 0.93 wt% peak at about 38.5, but that would require actual modelling.