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Cake day: June 4th, 2023

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  • There are lots of reasons to have binocular frontal vision. Redundancy, differing info for optic flow, sensitivity, reducing the frontal blind spot, compensating for retinal blind spots, higher frontal resulution, seeing around things, depth perception…

    Most of there are good for predators, but predation isn’t the only reason to have them.




  • I can see a little grain of truth in finding depressions and soft ground as the dowser shifts their body to stand level, which may indicate geological features associated with ground water.

    Humans also have a really good sense of smell for petrichor, which might also be related to ground water, with dowsing just being useful to focus on suble things like smell.

    Anyone who thinks dowsing can detect water directly is clueless or lying though, and dowsing has absolutely been used as a grift before.








  • Tlaloc_Temporal@lemmy.catoScience Memes@mander.xyzBanana
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    2 months ago

    Not all apples, but many. Including Macintosh, which was found along a road and could never produce viable seeds. There were only three trees for like 30 years before people noticed that they tasted rather good. All Macintosh apples today are grafts of the one surviving tree.



  • Tlaloc_Temporal@lemmy.catoScience Memes@mander.xyzBanana
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    2 months ago

    That old version “Gros Michel” is what artificial banana flavour is based on. Bananas used to taste like that. The newer “Cavendish” variety is firmer and lasts longer, but doesn’t have the same flavour. It seems like both are being wiped out by disease though, yay monoculture.

    Cavendish seem to be especially vulnerable because they’re all clones. They don’t produce viable seeds, so they’re grafted to new plants.