Put a needle in someone, freeze them solid with liquid nitrogen, then take a picture. Throw body out with rest of specimens.
Easy peasy.
Comment on I should call her.
JayDee@lemmy.sdf.org 5 days ago
Most SEMs use a vacuum chamber to get their photos. Also, it’s also not uncommon to sputter a conductive coating onto the surface you’re scanning.
How the hell did they get this photo?
ikidd@lemmy.world 4 days ago
Duckingold@lemmy.world 4 days ago
It likely wasn’t done on an electron microscope, or at least there is no reason to. There is no scale bar, but quick look online tells me a very fine needle is about 0.016in. 500x magnification optical lens would give you more than enough resolution for a photo like that.
princessnorah@lemmy.blahaj.zone 4 days ago
I’m more intrigued by the fact there’s no blood, they must’ve taken this milliseconds after the needle was removed? Or it’s a dead body.
jaybone@lemmy.zip 4 days ago
They could have remained a portion of the skin. But as another commenter notes, this is too large to need an electron microscope.
Zetta@mander.xyz 5 days ago
Probably just a chunk of skin, not a whole person
Pulptastic@midwest.social 4 days ago
Environmental SEMs do not require vacuum and can be used for nonconductive samples. The beam ionizes the air which prevents the sample from charging. Magnification is limited but it is more than enough for this.
You can tell it is SEM and not optical by the depth of field. An optical image at this magnification would have much less DoF so the peaks/valleys would be blurry.
JayDee@lemmy.sdf.org 4 days ago
That’s very cool. I had not heard of ESEMs till you commented. I’ll have to look into them more.