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exsolam.bsky.social
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Biological sex is irrelevant to contemporary debates. Medical sex (which is basically colloquial sex) and gender are. I'd argue that there is a genuine, non-arbitrary binary in biological sex, but it also doesn't classify all humans, and it doesn't classify *any* human at conception.

submitted 93 days ago • 1 comment

An antique microscope slide showing a nice arrangement of Radiolaria fossils from Barbados

submitted 118 days ago • 0 comments

First attempt at focus stacking with diatoms, 20 images taken about one micron apart for these Actinocyclus specimens. Nikon 20X NA0.75 and a Canon 55-250 IS STM on a Canon R100

submitted 126 days ago • 0 comments

A portrait of Sternotomis amabilis, a longhorn beetle. Its green and orange scales get their color from photonic crystals of chitin+air rather than from pigments, a great example of structural coloration.

submitted 135 days ago • 0 comments

@cosmicskeptic.bsky.social Are you familiar with the idea of metalinguistic negotiation? It came to mind while watching you and Sam Harris talk about ethics and emotivism and what it is we're doing when we say "murder is wrong."

submitted 135 days ago • 0 comments

An iris agate cab, ~1.3X macro. No pigments involved in these colors, the microstructure of the agate acts basically as a diffraction grating www.flickr.com/photos/29682...

submitted 136 days ago • 0 comments