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Cake day: June 13th, 2023

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  • The purple sulfur bacteria provide strong support for the purple Earth hypothesis.

    In short, early Earth was largely anoxic. Since the sun’s energy reaches Earth’s surface most efficiently in the green region of the visible spectrum, the most energy-efficient way for early photosynthesizers would have been to absorb green light while reflecting red and blue—resulting in a purple color.

    To compete, a new group of organisms evolved that reflected green light and absorbed red and blue to make sugars. This group also produced oxygen, which was toxic to the anoxic purple sulfur bacteria. As the Earth became increasingly oxygenated, these green photosynthesizers outcompeted the purple ones.

    Purple sulfur bacteria still exist today but are limited to oxygen-free environments.







  • Maybe a fun obituary. Or a nice arrest write up. Doubtful any of the plants I work with are significant. Mostly model organisms and their relatives or local plants I have always loved. Unless the Smilax rotundifolia I have suddenly ends up a Devil’s Snare.

    Fun fact, the shoots of young Smilax rotundifolia taste a bit like asparagus when cooked and in native cultures was used as a sexual performance enhancer among other things.


  • I prefer the DNA shotgun method. Load up a shell with gold covered in the DNA you want and fire it at a batch of seeds. If you’re lucky, you get some that are just right.

    But for my own hobby gardening, I like microdosing seeds with Oryzalin. Causes polyploidy and then you get some really nifty mutants with a whole bunch of extra DNA space to play in. And it’s cheap, as it’s sold in weed killer. Just don’t drink it. Or rub it on yourself. Hooray genotoxic chemicals at the Home Depot.

    Thinking about it, I have really odd hobbies. Anyone else mutate Arctic circle plants for fun?




  • NegativeInf@lemmy.worldtoScience Memes@mander.xyzOxygen
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    6 days ago

    Simple. It’s the combustion process of the luminiferous aether, which is like the cosmic equivalent of air, just finer and undetectable by modern instruments. See, the sun doesn’t need oxygen like regular fires because it’s tapping into this vast reservoir of aether that permeates the entire universe. As the sun rotates, it creates pressure waves that compress the aether particles, causing them to vibrate intensely. These vibrations generate heat through a process called “aetheric oscillation.”

    Now, since the sun is massive, it can harness an unlimited amount of aether, and the energy release is what we experience as sunlight. Think of it like a giant cosmic steam engine, except instead of coal and water, it’s running on pure space aether and high-velocity vibrations. And that’s why it keeps burning without needing any of that “earthbound” oxygen nonsense. It’s all about the oscillation efficiency, really.