为什么别人用咖啡和威士忌都能发文章呢?咖啡环效应,是指当一滴咖啡或者茶滴落在桌面上时,其颗粒物质会在桌面上留下一个染色污渍。该污渍边缘的颜色比中间更深,形成环状斑的现象。1997年,芝加哥大学Deegan等认为“咖啡环”效应的产生是由于液滴边缘蒸发速率大于中心蒸发速率,导致液滴内部产生一个向外的毛细流动,将悬浮的粒子带至液滴边缘沉积成环。相关论文以“Capillary flow as the cause of ring stains from dried liquid...
Manchester United Defeats Tottenham Hotspur with a Margin of One Goal
The Premier League match held between Tottenham Hotspur and Manchester United on Sunday, 11th April 2021, was a thrilling encounter. Both teams entered the game with con...