Dr Keith Walker @SteelFolk@social.cleverlibre.org

@sciencebase Do you think it makes it easier for baddies if they have your actual fingerprint?😉

@sciencebase Corus decided in the 1990s that our laptops should have it. But we never used it. This HP has it too but I never use it. It just gets mucky.

@sciencebase Little realising that it is David "Two Traps" Bradley.

@sciencebase It annoys me that the rationale behind saying don't drink is "well, it won't do any harm to stop". Yes it bloody does. It continually pisses me off and I eat instead. Now I 'need to lose 10kg' when I'm nearly immobile. "in a cage, on antibiotics" as Radiohead wrote.

@sciencebase Will do then, but you're probably right. I won't actually prompt her to say 'avoid alcohol'.

@sciencebase Would you like me to ask my Physio about exercises and tips or are you sorted for those? She's here on Friday.

@sciencebase We had one of these early last night. I think it is called 'Hebrew Character'.

@CWilbur I believe there is evidence of them having solidified extremely slowly as well, giving lots of time for diffusion. They're the only iron we had before we reduced oxides.

@CWilbur @sarahc@mas.Good thought. It's common enough in steels but it's brittle. It's formed from a solid state transform and is a displacive one so indicates low temperature and fast cooling. tbh usually a rolling cock-up!

@CWilbur @sarahc The single crystals made when the liquid solidifies upwards through a runner shaped like a pig's tail to select an orientation for further growth. It's to eliminate crystal boundaries which promote 'creep' - the blade gets permanently longer due to rotational loading at high temp.

@CWilbur @sarahc I guess in most metals we make there are so many nucleation sites that the crystals restrict each other. We can make it happen though. Best example is single crystals for engine turbine blades.

@CWilbur @sarahc I was just curious. They are so very different from metals.

@sarahc Do we know what are the nucleation sites for the crystals or is it homogenous?

@sciencebase Glass of Buckfast with that?

@calimari Artificial weedkiller?😂

@sciencebase

@sciencebase If you drink 5 bottles of Waggledance, you find your way by random walk.