直到2025年，物理学家实际上有三种不同的方式来描述流体，具体取决于流体的尺度。不同的规则分别适用于单个粒子的微观尺度、由粒子集合构成的介观世界，以及充满像水槽中流动的水这样成熟流体的宏观领域。研究人员在寻找它们之间的联系方面已经取得了进展，但在哈尼 ...

It took 125 years, but in 2025 a team of mathematicians discovered the solution to a long-puzzling problem about the ...

In 1900, at the grand amphitheater of the Sorbonne in Paris, David Hilbert stood before a crowd of mathematicians and delivered a speech that would echo through the next century. He outlined 10 — and ...