Mickey Petersen’s new book, Mastering Emacs, as he has an excellent
By WWII, scientists had already begun looking at alternative gelling substances for routine use in bacteriology, but concluded that agar was still better as it is both firmer and easier to handle. Today, some specialized microbiology applications use the colloid carrageenan (extracted from red seaweed Chondrus crispus, or “Irish Moss”), a more transparent and less auto-fluorescent alternative to agar (agar emits its own background fluorescence when excited by light). However, for routine bacteriological use, carrageenan is more difficult to dissolve, requires higher concentrations, can degrade at high temperatures, and forms weaker gels, which may result in puncturing its surface during the plating of cells.
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一座小山村，藏着发展的大逻辑。
Small talk may not profoundly alter your life. But its absence will profoundly alter human life as we know it. We live in a world of intense and often unnecessary division. Small talk is a tiny, free and very possibly priceless reminder of our shared humanity. If we intentionally give up talking to strangers, if we purposely decide to give in to the phone shield, the consequences will be horrible. Arguably, we are already on the verge of doing this. Let’s back up and start a conversation before it’s too late.