i don't know

Working at Harvard in the late 1800’s and early 1900’s as a “Computer”, Annie Jump Cannon cataloged stars using their spectra from photographic plates, in an effort to understand the mysteries and peculiarities of stellar spectra.

This was hard, detailed, nuanced work. By 1889, three years into her work, she had classified over 1,000 stars. By 1913, she could classify 200 stars an hour. She could classify three stars a minute, just by sight. Using a magnifying glass, she could classify stars down to 9th magnitude, 16 times fainter than the human eye can see. And she did this all with exceptional accuracy.

Over the course of her career, she personally classified more than 350,000 stars, accounting for a mind-boggling 98% of all contemporary stellar spectra classifications, a feat that wouldn’t be bested until the 1990’s with automated digital sky surveys.

Cannon used these classifications to develop the Harvard spectral classification system (O–B–A–F–G–K–M), organizing stars by surface temperature and physical properties.

It is hard to overstate just how foundational her work was to modern astronomy and astrophysics. Her classifications have enabled more than a century of breakthroughs in stellar structure and evolution, including the understanding of how stars change over time and how temperature, luminosity, and composition are related. The system underpins the Hertzsprung–Russell (HR) diagram, one of the most important tools in astrophysics, and remains embedded in modern research, from stellar population studies to galaxy evolution.

She wasn’t the only woman human computer at Harvard at the time (there were about 80), though she stands out for her contribution and for having already had an education in physics and astronomy.

Henrietta Swan Leavitt was one of her coworkers. She also had progressive hearing loss due to illness and was also deaf when she started working at Harvard.

Here’s some more pictures.

Cannon and Leavitt

the human computers and their boss Pickering. May 1913

Grace going “oh!! But!” and teaching them about starfish, to their absolute delight

apparently, cats' kidneys tend to be the thing that takes them down, something about their bodies being unable to self-clean their kidneys, and the vaccine is supposed revitalize the body's ability to do just that. It would be very VERY fucking cool to have cats suddenly reaching 30 years of age be the normal thing.

dude cracked the case about WHY kidneys fail, across the board as far as i can tell. turns out there's a specific molecule whose job it is to attach to waste and signal macrophages to come eat it. it remains inactive in cats for some reason, but the molecule is still there. basically what he's done is found the switch to activate them. this will be profound not only for our domestic babies, but for big cats too - especially cheetahs!

although his research was focused on cats, it's already being used to develop drugs for humans too!

on top of that, since these molecules are tags for waste, this could also dramatically lower the rate of fatty liver disease, liver cancer, urinary crystals, rheumatoid arthritis, and even some neurological cases! like, they're hoping it may have an impact on parkinson's and alzheimers, but it DOES have an impact on stroke recovery. like. holy shit.

furthermore, he's insisting that the feline drug be affordable if and when it rolls out onto the market. he wants this to be something anyone can get for their cat!! idk how much sway he'll have over the human drug, but hopefully enough that it, too, won't be that expensive.

annnnnd in his research that he's still doing for the human side of things, he's found a potential link between this molecule and estrogen. in the 20,000 samples he's tested, women between ages 10 and 29 had the highest amount of this molecule present in their blood (a higher amount means Something Fucky is going on, essentially. There's a higher amount of waste the body is trying to clean out) but it drops down to be almost equal amongst men and women after menopause. it hasn't been looked into yet, but fuck, just the fact it's noted and known and probably WILL be looked into soon??? imagine if this is what leads to figuring out all the various ways the ovaries and uterus fucks with people and how to fix it. or even like, maybe there's something about estrogen that makes it work better. who knows! but it's rad the link is there to be researched :D

As for the study itself, the 360 day follow up on stage 3 kidney failure kitties showed that the control had a survival rate of about 20%, while the test group had a survival rate of 80%