Nauka: Wpisy

@DrLindseyFitzharris@mastodon.world

Marie Curie's notebooks, which are radioactive and must be stored in a lead-lined box in the Bibliothèque Nationale. Curie’s corpse is also radioactive. Her coffin is lined in an inch of lead. Both will remain radioactive for 1,500+ years.

More info: https://www.sciencealert.com/these-personal-effects-of-marie-curie-will-be-radioactive-for-another-1-500-years

An old notebook with notes and diagrams written in Marie Curie's hand.
@Sheril@mastodon.social

In 1925, Dr. Cecilia Payne completed her PhD thesis, described as “the most brilliant ever written in astronomy.” At a time when few entered academia, Payne discovered what the universe is made of. Her work began a revolution in astrophysics.

Dr. Payne-Gaposchkin became the 1st female professor & 1st female department chair at Harvard. Given most of us remember names like Darwin & Newton, we should also celebrate Payne.

Read more at https://www.aps.org/publications/apsnews/201501/physicshistory.cfm

In 1925, Dr. Cecilia Payne completed her PhD thesis,...
@dinosven@sciencemastodon.com

I just moved to sciencemastodon. I'm a vertebrate palaeontologist and my research focusses on Mesozoic marine reptiles. The photo shows a perfectly preserved skull of the weird ichthyosaur Eurhinosaurus. The specimen is approx. 1 m long and was found in the Lower Jurassic Posidonia Shales of Holzmaden (Germany). It is on display at the Naturmuseum Winterthur (Switzerland).

I just moved to sciencemastodon. I'm a vertebrate...
@HenrykWojtowicz@mastodon.pl

Uroczyście przyrzekam, że jeśli w życiu popełnię jakieś prace naukowe będą udostępniane w otwartym dostępie 🖥️

Dostęp do źródeł naukowych nie powinien być ograniczony finansowo - prowadzi to do wolniejszego i trudniejszego rozwoju nauki, jak również utrudnia dostęp do rzetelnych informacji społeczeństwu

@HenrykWojtowicz

Ło panu! Trochę mnie uprzedziłeś, bo planowałem na Mastodonie rozpocząć pewną "zabawę".
[Na pohybel Ci za to! ;p]

Zabawę polegającą na dzieleniu się społecznie pomysłami mającymi pomóc światu/społeczeństwu.
Nawet mam kilka pomysłów na hasztagi ;)

Na razie gryzmolę. :D

@Przemek no i elegancko, mam nadzieję że się pojawią jakieś ciekawe idee!

@TheConversationUS@newsie.social

Shark researchers watched 202 television episodes of , and they were not not not impressed.

Among the findings:
🦈 Most featured no actual scientific research
🦈 Many others featured questionable research and pseudo-science
🦈 Only 6 episodes had actionable tips for shark conservation
🦈 There were more white male non-scientists named Mike interviewed than women of any profession

https://theconversation.com/beware-of-shark-week-scientists-watched-202-episodes-and-found-them-filled-with-junk-science-misinformation-and-white-male-experts-named-mike-195180

@_astronoMay@astrodon.social

Who is ready for ????

This week follow along as I walk you through how observes transiting* , what spectroscopic data looks like straight from the different instruments on the telescope, and why we have/use different instruments

(*there are other ways to observe exoplanets with JWST, but I'll only talk about planets that cross between us and their star in this thread)

Long 🧵 Warning!

A gif of JWST. The video starts from a low angle, looking at the bottom of the sunshield, which appears slightly pink/purple due to the material it's made of. The view rotates to above the sun shield and the gold hexagonal mirrors come into view. Eventually the view centers on the mirrors and we see a reflection of the secondary mirror which is what reflects light back to the telescope, and then slowly the image zooms in until all we see is gold and then the gif starts over.

The data I showed above was just for the NIRSpec instrument with the PRISM dispersion element (the thing that splits up the light into colors)

There are lots of other modes that don't look as "nice" with just a clear stripe down the middle.

For example, the NIRISS instrument has spectra that curve on the detector, and there are multiple different components to the spectrum that overlap

(the color here is not real color, just a different choice other than black/white)

https://arxiv.org/abs/2211.10493

All the different instruments have their own "unique" "issues" that we have to deal with, but that doesn't mean they're not useful! The entire reason my job exists is to learn how to get the most out of this data that we possibly can.

Different instruments/modes on JWST all have different specialities, generally being different colors of light or different resolutions

(image credit: STScI/NASA/JWST)

@esencjalista@101010.pl

to program wykorzystujący format Markdown do tworzenia notatek.

Ale czym właściwie jest ten cały Markdown?

To format stworzony głównie do pisania treści w internecie wykorzystujący prostą składnię zamiast HTMLa.
Opiera się na wykorzystaniu znaków specjalnych, takich jak # * _

Jest intuicyjny i szybki w użyciu bo nie trzeba odrywać rąk od klawiatury ani uczyć się skrótów klawiaturowych.

Markdown editing mode

#Obsidian to program wykorzystujący format Markdown do...

@grymasTysiaclecia Używam właśnie na MacOS i mi nie bierze Ramu wcale 🧐 Nie ma różnicy czy mam włączony czy nie i czy używam. Zużycie ramu się nie zmienia ani trochę.

@esencjalista Każda apka oparta o Electron odpala swoją instancję przeglądarki Chrome. Każda taka apka uruchamia tym samym wiele procesów. Na przykładzie VSCode, proces główny zjada około 52MB, ale w tle uruchomionych jest wiele innych procesów (na screenshocie procesy zależne od VSCode). Większość electronowych apek nie jest aż tak dobrze zoptymalizowana jak VSCode i najbardziej bzdurne z nich potrafią wciągać nieproporcjonalnie duże ilości pamięci.

@Sheril@mastodon.social

I bet you’ve heard of Galileo & Hubble, but what about Henrietta Swan Leavitt?

Leavitt changed astronomy. She figured out new ways to measure a star’s distance from Earth & her work helped determine the universe is expanding.

Her boss, Edward Pickering, published her findings UNDER HIS NAME. Later, Shapley used her findings to determine distances around the Milky Way w/o credit.

Leavitt’s work is still used today. So next time you hear about famous men in share her remarkable story.

I bet you’ve heard of Galileo & Hubble, but what about...
@anirban@fediscience.org

A bacterial driver of arthritis?

Autoantibodies are detected in people at risk for rheumatoid arthritis before development of clinical disease. The source of these autoantibodies is unclear.

“A bacterial strain from the Subdoligranulum genus associated with autoantibody development was identified. Mice colonized with this Subdoligranulum isolate developed arthritis…”

https://www.science.org/doi/10.1126/scitranslmed.abn5166

@howellspace@qoto.org

is going to produce a lot of science not only about the , but , and even a little bit of help for people living on .

I recently wrote about 10 passengers and payloads, some flying on the spacecraft for purposes and others carrying a wide variety of in right now.

https://www.space.com/artemis-1-strange-things-moon-mission