modeler

joined 1 year ago
[–] modeler@lemmy.world 25 points 4 days ago (1 children)

No worries - the ghost parts can move through corporeal objects like tables and chairs. And it looks amazing too!

[–] modeler@lemmy.world 28 points 1 week ago (1 children)

And count the electoral votes

[–] modeler@lemmy.world 2 points 2 weeks ago (1 children)

But angle <-> angel so god has sent his horde to handhold you while fishing!

[–] modeler@lemmy.world 4 points 2 weeks ago

If the Russian missile fails, it will automatically be tested against western radars and anti-aircraft missiles.

[–] modeler@lemmy.world 31 points 1 month ago

You're in the process of describing a Cybertruck, just the misfitting panel 'teeth' aren't rotating

 

Spotted an owl in the woods in Bishan Park in central Singapore early in the evening. Logically this makes it a spotted wood owl.

Sorry for the low quality - it was at the limits of my Pixel 6 camera.

[–] modeler@lemmy.world 3 points 1 month ago (1 children)

As an aside, oysters are not bivalves, they are brachiopods. Brachiopods do have a nervous system - some even have eyes.

What's the difference and how do you tell a brachiopod from a bivalve? It's the plane of symmetry. In bivalves the plane of symmetry is where the shells (also known as valves) join. So bivalves have two identical shells. Whelks and razor shells are bivalves. Brachiopods also have two shells, but the shells are normally quite different. The oyster for example has one big concave shell and one small flat one on top. The big shell has a hole at the apex (just next to the hinge) and a root-like anchor grows from it to bind the brachiopod to the matrix on which it lives. Brachiopods have an axis of symmetry from this root/foot that vertically separates each shell into two mirrored parts.

[–] modeler@lemmy.world 1 points 1 month ago

Well Texas was welcoming them with lots and lots of arms - handguns, rifles and more.

[–] modeler@lemmy.world 10 points 1 month ago (9 children)

Because of the danger that the tray has traces of sourdough?

[–] modeler@lemmy.world 2 points 2 months ago* (last edited 2 months ago)

Don't mention carpet anywhere near the campaign in case Vance starts eyeing the furniture again

[–] modeler@lemmy.world 34 points 2 months ago (5 children)

This is true for only red and green loght detecting proteins (opsins) - the blue opsin gene is on chromosome 7.

The red and green detecting proteins have an interesting history in humans.

Fish, amphibians, lizards and birds have 4 different opsins: for red, green, yellow and blue colours. And the blue opsin sees up into the ultra-violet. Most animals can see waaaay more colours in the world than we (or any mammal) can. So what happened that makes mammal vision so poor?

It's thought that all mammals descend from one or a few species of nocturnal mammal that survived the catastrophe that wiped out the dinosaurs at the end of the Cretaceous. The colour detecting cells (the cones) need a lot of light compared to ones that see in black-and-white (the rods) and therefore nocturnal animals frequently lose cones in favour of the more sensitive rods for better night vision. The mammals that survived the Cretaceous extinction had also lost the green and yellow opsins while keeping red and blue - basically the two different ends of the light spectrum.

Consequently today most mammals still have only 2 opsins so your cat or dog is red-green colourblind.

Why do humans see green? Probably because our monkey forebears, who lived in trees and ate leaves, needed to distinguish red leaves and red fruit (visible to birds) from the green background.

But how did we bring back the green opsin? A whole section of the X chromosome (where the red opsin is coded) got duplicated in a dna copying mistake and then there were two genes for red opsins. As there are different alleles (versions), they could be selected for independently and so one red opsin drifted up the spectrum to be specific for green. So our green opsin is a completely different gene to the green opsin in fish, birds, etc. This kind of evolution happens a lot which is why, for example, there are many families of similar hormones like testosterone and estrogen. And steroids too.

[–] modeler@lemmy.world 22 points 2 months ago (1 children)

Just to add one more sidenote: France is of course named after the Franks, a German people who lived next door to the Alemanni and the Saxons.

[–] modeler@lemmy.world 15 points 2 months ago

It is the defecal standard though.

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