Before agar, microbiologists had experimented with other foodstuffs as microbial media. They turned to substances rich in the starches, proteins, sugars, fats, and minerals that organisms need for growth, testing with broths, bread, potatoes, polenta, egg whites, coagulated blood serums, and gelatine. However, none worked particularly well: all were easily broken down by heat and microbial enzymes, and their surface, once colonized, became mushy and unsuitable for isolating microbes.
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community-driven Endowment is a wonderful initiative to pursue its long-term
「語言的一個有趣特點是，某種語言中 70% 的內容，其實是由幾百個常用詞組成的，」莫納漢說。「但真正難以在短時間達成的，是聽懂別人回你什麼，因為他們會不時使用那些較少見的詞彙。」