#scientific imaging

[noosphe-re]

Brain Images Just Got 64 Million Times Sharper (Ultra-Sharp Brain Scan, Duke University)

[nemfrog]

"Various urodele amphbians, not all to the same scale." The life of vertebrates. 1962.

Internet Archive

[tiercel]

Giant blue worm (Megascolex coeruleus?)

Photographed by Abhishek Jamalabad

[mouseshift]

oxenfree nd gravity falls crossover because i can do whatever i want

[tkmk]

tag yourself! i'm Verbaln Reçuising

[cult-of-the-eye]

listen horror is supposed to be reflective of the fears of our time, right? tma's big theme was constant surveillance and now tmagp's focus on digital horror has just made this even more apparent, like the different ways people's online activity can be found and collated, its just so weirdly satisfying seeing how relevant it is

[filletedfennysnake]

today's gender is: whitefly puparia!

[pansyfemme]

i am really so hyped for this one class im taking like. beyond hyped im shaking and crying just thinking about it

[spaceadvances]

You may have seen Orion's belt before -- but not like this. The three bright stars across this image are, from left to right, Mintaka, Alnilam, and Alnitak: the iconic belt stars of Orion. The rest of the stars in the frame have been digitally removed to highlight the surrounding clouds of glowing gas and dark dust. Some of these clouds have intriguing shapes, including the Horsehead and Flame Nebulas, both near Alnitak on the lower right.

This deep image, taken last month from the Marathon Skypark and Observatory in Marathon, Texas, USA, spans about 5 degrees, required about 20 hours of exposure, and was processed to reveal the gas and dust that we would really see if we were much closer. The famous Orion Nebula is off to the upper right of this colorful field.

The entire region lies only about 1,500 light-years distant and so is one of the closest and best studied star formation nurseries known.

📷: Matt Harbison (Space4Everybody), Marathon Remote Imaging Observatory

[noosphe-re]

Marmoset brain imaging (Translational Medicine, Monash University)

[nemfrog]

Geologic Time Chart. Guide for beginning fossil hunters. 1959.

Internet Archive

[nuheyenuh]

Dudleya sp. and Philotes sonorensis

[alithographica]

I lied it's not actually new art. Is it new art if it's old art in a new medium? idk but let's do some science to our art, welcome to

ACID TIME

Here's a horseshoe crab I drew in ballpoint pen a while back. I took a short etching class and wanted to use this as my image—I've done a little etching before but not this much detail, so it was a bit of an experiment.

Quick etching explanation: You first cover a flat metal plate in a waxy substance called "ground", then use a sharp tool to carve through the ground to reveal your plate. You then dunk that into an acid bath for like 30 seconds to an hour, depending on how deep/bold you want the line to be. The ground protects most of the plate, but the acid will eat away at anything you exposed. When you put ink on your plate to print it, the ink will sit in those grooves and then transfer to the paper, producing a print!

(If you're interested in the specific chemistry: We used copper plates and a ferric chloride solution (aka iron (III) chloride, or FeCl3). Ferric chloride is an acid with a pH around 2 (strong!) and it reacts with the copper to produce copper chloride. Copper (II) chloride is soluble, so as the copper gets eaten away from the plate, the copper chloride floats away in the solution.)

You can also do multiple passes in the acid to get different line strengths. The next photos are some WIPs of the different rounds of scratching and/or etching I went through. The dark stuff is the ground, and the bright lines are the copper plate I've exposed—in the first photo you can also see where I've transferred lines from my original drawing to the ground that I haven't scratched yet.

(Printmaking reverses the image, so I had to flip the image while I was working so that it would print normally at the end—that's why it's backwards here.)

I ultimately did 4 rounds in the acid—I exposed the darkest lines first and put it in for 40 minutes, then scratched the medium-dark lines and bathed it for 15 minutes, then two rounds of light lines at 5 minutes. However, it's cumulative because the prior lines stay exposed (unless you specifically cover them with new ground) so the darkest lines actually received just over an hour of etch time.

And then here's what the plate looks like once the ground is removed! This is ready to be inked and printed.

Typically you have to re-ink between each print. This involves smearing the ink on, then using a cloth to buff it off of the surface of the plate while it sits in the etched grooves. Takes a few minutes and you can also control how clean or inky your plate is. I personally prefer more ink for a more shadowy print area and darker darks—left-hand is one where I polished it more, right-hand is one where I left more ink.

And there's the print!

🦀

(okay they're not a real crab but that's the only emoji we've got rn, sue me)

[socksandbuttons]

Greetings! Welcome to Earth!

And here is our dear sweet Earth herself! Literally, say hi to the earth's AI. She is loving, caring and while she is rather forgiving, puts her foot down when needed. Such as Don't Litter On Her. She aint having that. She's using a hologram form most of the time, it's far more cartoon looking (simple but effective). Her heads not actually attached to the body. She's well known for most people on earth but most don't get a one on one with her. (Not anymore really. But she enjoys watching over kids, and how humanity grows.) Earth has over seen the Sun and Moon animatronic line very closesly so she's developed a rather unique attachment to them. She loves her little brothers! And checks in from time to time. Depending on the ship or communications device she can appear small or large. Enjoy you're little Lore comic there! feat @nekojaf two lovely ladies Ruby and Ruby's caretaker

[thepotentialof2007]

a few years ago, researchers from CESIMAR, a marine research center in Argentina, happened upon a never-before-seen behavior while studying southern right whales and ship traffic, and recently published their findings

DOI:10.1578/AM.49.1.2023.1

art by Marina Wang

[icewindandboringhorror]

examining a seemingly normal image only to slowly realize the clear signs of AI generated art.... i know what you are... you cannot hide your true nature from me... go back where you came from... out of my sight with haste, wretched and vile husk