The Dutch have quietly adopted working just a four-day week. But what has been its impact, and can it last?
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How Hollywood and Maga aligned over Warner Bros deal
It is difficult to know exactly when the shift from gelatine to agar occurred. As often happens for scientific breakthroughs, agar was likely adopted incrementally alongside the use of other growth media. In 1913, for example, the first diagnosis of Serratia marcescens as a human pathogen was made by growing it on agar as well as on potatoes.