HackerTube / Video
How Trees Bend the Laws of Physics
Veritasium
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.
5 Hacker News mentions · 2013–2026