@cathal @douginamug I don't know what it refers to, but I do now have Maxwell's Silver Hammer as my ear work 😄

@cathal should have known it was a physics thing! Maybe they need Maxwell's Silver Hammer to knock the demon on the head to stop it from violating the 2nd law of thermodynamics 😊

@GwenfarsGarden @douginamug @InvaderXan It's always a physics thing on some level where Solarpunk is concerned :P

@cathal @GwenfarsGarden @douginamug
Well, you know... solar energy... photons... energy transfer... all of that lovely stuff.

@InvaderXan @GwenfarsGarden @douginamug Also chlorophyll, up close, is a whole mess 'o quantum nonsense. Chlorophyll is basically impossible, it's fake news.

@cathal @GwenfarsGarden @douginamug
You know that using molecular photophysics to mimic chlorophyll is literally my job, right? :P

@InvaderXan @GwenfarsGarden @douginamug
Not even kidding it's witchy as heck.
I attended a talk about bacterial chlorophyll years back, which has independently converged on essentially the same structure as plant chlorophyll (which is already whoa), and the quantummy optimisations in there were extremely mind-blowing. Life is amazing.

@cathal @GwenfarsGarden @douginamug
It seems like things in nature are more and more amazing the longer evolution has been working on them. And, since it first appeared, evolution has had 2.5 billion years to optimise photosynthesis.

That’s 18% of the total lifetime of the Universe. Which is quite a thing to think about! ☀️

@InvaderXan @cathal @GwenfarsGarden @douginamug
and if u see the way photosynthesis is optimised,
it's not just for efficiency (or higher profit for the plant) but for a collective good (which is more sustainable)

@InvaderXan @GwenfarsGarden @douginamug
How so? It does bug me that efficiency overall is low, but IIRC the bottleneck isn't chlorophyll, it's carbon fixation using the unstable energy available from chlorophyll, hence why C4 plants have higher efficiency. But it does appear to be a simple case of "efficient photosynthesis is hard", rather than a "deliberate" lack of optimality?

@cathal @InvaderXan @GwenfarsGarden @douginamug

Yah how and why so ?
That's just a thought from layman's perspective.. and comparison is not with C4 plants..
Chlorophyll..ironically not using the most optimum part of the solar spectrum (green) ? Why not any another complex pigment..

@animo @cathal @GwenfarsGarden @douginamug

Very simply, nature is not greedy.

Plants take what they need and no more. Chlorophyll is as efficient as it needs to be. It avoids the strongest part of the solar spectrum to avoid oxidative damage which could easily damage sensitive living tissues. In fact, most plants have mechanisms to stop them from absorbing too much light.

The idea that things need to always get the highest possible returns is very human, and not shared by nature.

@animo @cathal @GwenfarsGarden @douginamug

As for the collective good, this is not a trait of photosynthesis, but of plants as a whole. They're evolved to share resources symbiotically with other organisms, microbes, fungi, and other plants.

This way, plant-dominated ecosystems like forests involve exchange of resources, so that organisms with more nurture organisms with less, and vice versa.


@InvaderXan @cathal @GwenfarsGarden @douginamug

yeah...I mean chlorophyll..easy damage/degrade --> better symbiosis--> not only optimized for oneself to live for ever😏
like anything else which evolved naturally ...🌻

· Web · 0 · 0 · 2
Sign in to participate in the conversation

chaos.social - because anarchy is much more fun with friends.
chaos.social is a small Mastodon instance for and by the Chaos community surrounding the Chaos Computer Club. We provide a small community space - Be excellent to each other, and have a look at what that means around here.
Follow @ordnung for low-traffic instance-related updates.
The primary instance languages are German and English.