How Trees Bend the Laws of Physics
4 人推荐 · 跨 4 个月 · 2013–2026
中文导读
Veritasium 揭秘参天巨树如何无需水泵与阀门，纯靠蒸腾拉力（transpiration pull）与水在亚稳态下承受的惊人负压，将水分从根部输送至百米高空的物理奇迹。
为什么 HN 推它
社区公认 Veritasium 历年出品中水准极高、经得起时间考验的科普杰作之一。
「强烈推荐观看，我认为这是 Derek 产出的 Veritasium 最佳视频之一。」HN 网友原话：I recommend watching, I think it's one of the best veritasium Dereck has ever produced.
英文原摘要（HackerTube / Claude 整理）
Veritasium explains how trees lift water from roots to the top of tall trunks, using transpiration pull and the negative pressure that liquid water can sustain. It explains why trees do not need pumps or valves.
HN commenters recommend it as one of Veritasium's best videos and one that has aged well.
HN 上的提及
The secret sauce is that in a liquid rather than a gas, you can have a negative pressure.
Just recently watched a Veritasium video on how trees get water from the roots to the top of the tree, and it's pretty awesome
It's an old video, more than ten years ago, but it aged well IMHO.
I recommend watching, I think it's one of the best veritasium Dereck has ever produced.
See also Veritasium on that topic