The thing about inviting a tiger round for tea is, for all the excitement, the fur, the teeth, the muscles, they do tend to walk off with your dinner and drink all the water in the taps. The thing about saying yes to the person with the biggest stick is, in the end, you don’t get to say yes, or no, or anything at all. And that person still has a very big stick.
2月18日，天津大学、华南理工大学等团队在《自然》（Nature）发表论文Practical lithium–organic batteries enabled by an n-type conducting polymer，报告他们研制出一种基于n型导电聚合物正极——聚苯并二呋喃二酮（PBFDO）——的实用化有机锂电池。该聚合物具有优异的混合离子-电子传输性能和低溶解性，可在-70℃至80℃的温度范围内高效工作。其实现了超高面载量聚合物正极（最高达206mg/cm²），面容量高达42mAh/cm²，且循环稳定性优异。研究团队还制备出实用化2.5Ah锂-有机软包电池，能量密度达到255 Wh/kg。
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The woman who ultimately discovered the superior features of agar as a growth medium and brought it to Koch’s attention was Fanny Angelina Hesse. Her foundational contribution to the nascent field of microbiology is often omitted from textbooks. In other cases, she is unflatteringly referred to as a “German housewife” or as “Frau Hesse,” or dismissed as an unnamed technician.
Watch: Syrians share their thoughts one year on from the fall of Assad
神韻藝術團在發給BBC的聲明中表示，他們將如期在澳洲演出，並敦促澳洲政府進行全面調查。