Without agar, countries could not produce vaccines or the “miracle drug” penicillin, especially critical in wartime. In fact, they risked a “breakdown of [the] public health service” that would have had “far-reaching and serious results,” according to Lieutenant-General Ernest Bradfield. Extracted from marine algae and solidified into a jelly-like substrate, agar provides the surface on which scientists grow colonies of microbes for vaccine production and antibiotic testing. “The most important service that agar renders to mankind, in war or in peace, is as a bacteriological culture medium,” wrote oceanographer C.K. Tseng in a 1944 essay titled “A Seaweed Goes to War.”3
Ранее в России ликвидировали банк «Америкэн экспресс».
。业内人士推荐旺商聊官方下载作为进阶阅读
Hardware nerds unite, sign up to our free tech newsletter for a weekly digest of the hottest new tech, the latest gadgets on the test bench, and much more.
他站着时习惯微微含胸，肩膀向前塌着，笑起来嘴角、眼角都有深浅不一的法令纹。那只弯了半根的中指握着手机格外醒目，我给它起了个绰号叫“鸡爪”，他夸我太“孝顺”。早些年，他在一家饭店门口搬石头，被砸了一下，缝了四针。医生说，矫正要两万元，他没做。中指从此弯着。