Agar’s low viscosity also makes it easy to pour into Petri dishes, and its transparency permits observation of microbes growing on its surface.7 Also aiding in this is its low syneresis (extrusion of water from the gel), guaranteeing less surface “sweating”: Once a plate is inoculated, bacterial colonies stay in place and do not mix.
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It's the Full Moon tonight, and this month's is an extra special one, it's also a total lunar eclipse. This will turn the Moon a red color, earning it the nickname of "Blood Moon". Moon gazers in North America, parts of Asia, Australia, and the Pacific will be lucky enough to see this phenomenon, but for those elsewhere, it'll still be a big and bright moon with lots of features to spot on its surface. Keep reading to find out exactly what you can see.。关于这个话题，体育直播提供了深入分析