“Trees contain lots of thin, hollow vessels and they suck water upwards by creating low pressure at the top,” said Professor Lucy Rowland, from the University of Exeter. (emphasis mine)
Come on, article writers, be kinder to the pedants!
I still don't really understand how trees could possibly suck something up higher than air pressure can push it. Are they like using surface tension or something?
7 Comments
SirSamuel@lemmy.world · 8 pts · 52d
Headline: "…pumping water…"
Right in the goddamned article
Come on, article writers, be kinder to the pedants!
m0darn@lemmy.ca · 5 pts · 52d
I still don't really understand how trees could possibly suck something up higher than air pressure can push it. Are they like using surface tension or something?
Slatlun@lemmy.ml · 10 pts · 52d
Yes, surface tension causing capillary action with negative pressure at the top caused by evapotranspiration.
SirSamuel@lemmy.world · 4 pts · 52d
☝️ this one trees
daggermoon@piefed.world · 7 pts · 52d
I love trees. So majestic.
Lauchmelder@feddit.org · 2 pts · 52d
clearly
supersquirrel@sopuli.xyz · 1 pts · 50d
Veritasium has a great video on this.
https://www.youtube.com/watch?v=BickMFHAZR0
https://inv.nadeko.net/watch?v=BickMFHAZR0