@bigfresh.bsky.social

@bigfresh.bsky.social

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Source: https://www.stats.gov.cn/english/NewsEvents/200505/t20050513_25623.html
Screenshot of text: "Additionally, individuals can undertake great cognitive leaps that are almost impossible to replicate formally in front of other people. You can solve a math problem in seconds that then takes days to explain."
A screenshot of Saeed From Gaza's account, handle @sssaeeeed
As repeatedly pointed out by Florey himself, the work on penicillin in Oxford was graced by a great deal of good luck. The material used in the first animal experiments contained only a minute amount of pure penicillin, and it was amazingly fortunate that none of the impurities that constituted the bulk of the preparation was itself seriously toxic. If, as subsequently happened with many other antibiotics, penicillin had proved toxic to man, as it is to the guinea-pig, it would have been, to put it in Florey’s own words “just another chemical curiosity”. In order to strengthen the chemical side of the work Florey attracted E. P. Abraham to the Dunn School. Abraham, who had recently completed his doctorate in the Department of Organic Chemistry at Oxford (the Dyson Perrins Laboratory) set about the difficult task of purifying penicillin and then determining its structure. Abraham was eventually completely successful in both these aims, and was the first to propose the correct chemical structure for penicillin. Abraham’s structure, which involved the novel -lactam ring, was not accepted by Robert Robinson, the Head of the Dyson Perrins Laboratory or by J. W. Cornforth, then also working in that department; they proposed a thiazolidine-oxazolone structure.