Contamination, presumably. Difficult to get the precision alloys one needs for hi-tech if you are beginning with mucky stuff? But it would be good to know. Also - you suddenly need a lot of steel, wh… (View Post)

You need room in the schools for that, armouries, stores for outward bound kit, offices, orficers = teaachers who have the training? Not now, not like the 1960s-1980s when many teachers had done Nati… (View Post)

Re @Flatlander and his tax woes as discussed recently - https://www.theguardian.com/money/2024/jan/20/retired-teachers-pension-stopped-as-provider-refuses-to-believe-she-is-not-dead 'McGrath sai… (View Post)

Indeed. For making high=precision instruments. But that came later, post 1940s. Modern steel is too contaminated even if made de novo. Remarkable thought. (View Post)

AUIU judges can only take into account the evidence that is formally brought into court. The English courts were ordered to assume that all computer-says-no stuff was valid a priori. And lots of case… (View Post)