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.
Statement from Dario Amodei on our discussions with the Department of War Feb 26, 2026
。业内人士推荐51吃瓜作为进阶阅读
"The core thesis is simple. Intelligence tools have changed what it means to build and run a company. We're already seeing it internally. A significantly smaller team, using the tools we're building, can do more and do it better. And intelligence tool capabilities are compounding faster every week."
В Финляндии предупредили об опасном шаге ЕС против России09:28
05:39, 28 февраля 2026Бывший СССР