天气预报 > 其他 > 这滴水为什么不会滴落
这滴水为什么不会滴落
更新时间: 2020-10-05 00:00:00  

因为水滴具有表面张力,当水滴向前滚动时需要克服表面张力。当倒掉一杯水时,绝大部分水受到重力的作用而被倒掉,但剩下的挂在杯子表面的水滴之所以仍然在那里,是因为表面张力的方向是朝向杯壁的,当大于重力时,水滴就留在那里了。

关键词: 滴水 为什么

这滴水为什么不会滴落相关经验

天气预报

最新推荐

页面:/news/view-1475813/ | 耗时:0.8276 s | 内存:2.11 MB | 查询:4 | 缓存读取:3 写入:0 | 加载文件:25
select * from tbl_Articles WHERE ArticleID=1475813 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=1475813 LIMIT 0,1
select * from tbl_Articles_sphinx where id=1475813 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1080717,1092034,1063561,1101407,1100187,1083971,1740906,1065207,2791110,1046308,1099033,2101664,1097633,1058033,1304459,1083265,1043987,1094769,1131535,3374060,1121600,1084865,1077523,1062308,115049,1115003,1891691,119019,1097635,1118108) ORDER BY field (ArticleID,1080717,1092034,1063561,1101407,1100187,1083971,1740906,1065207,2791110,1046308,1099033,2101664,1097633,1058033,1304459,1083265,1043987,1094769,1131535,3374060,1121600,1084865,1077523,1062308,115049,1115003,1891691,119019,1097635,1118108)