🌸🌹2ck 🌱🐇 @2ck@qoto.org
A capable software engineer and aspirating (sic) cook. Also posting about space stuff (mostly NASA) occasionally
pronouns: he, him
Joined Apr 2020
@Amikke I think there should be separate spaces, generally. it's ok to be primarily gender neutral if you can set up that situation in your community and establish some norms, but, broadly, cis-gendered hetero people probably can't be trusted to act right in these situations
@AmpBenzScientist @Amikke by "pokey tool", you mean your penis, right?
@AmpBenzScientist are you/were you in the military?
I made up a little demo to play with basic optics (Snell's law and internal reflection). I want to make a little game out of it, but I'm not sure where to take it from here.
#videogames #optics #physics
@augustus it's weird how he's actually a real person and not a fictional character. life's funny sometimes
🌸🌹2ck 🌱🐇
boosted
" the science performance of #JWST is better than expected. The optics are better aligned, the point spread function is sharper, and the optical performance is more time-stable. The fine guidance system points several times more accurately and precisely than required. The mirrors are cleaner..."
"better sensitivity ... by tens of percent... JWST will
go deeper faster than expected... enough propellant onboard to last at least 20 years."
🌸🌹2ck 🌱🐇
boosted
"The report — Characterization of JWST Science Performance from Commissioning
— is now available; it summarizes the actual science performance of JWST as known on 12 July 2022, and how the actual performance differs from pre-launch expectations. The report quantitatively describes the performance of the spacecraft, telescope, science instruments, and ground system, as well as the overall observatory performance."
https://www.stsci.edu/contents/news/jwst/2022/learn-about-jwsts-known-scientific-performance
@ekvin reminds me of some Sandman graphic novel covers
🌸🌹2ck 🌱🐇
boosted
Big day for space science! From grand telescope views that #UnfoldTheUniverse, to extreme closeups of #SamplingMars, with rock cores barely the size of a pinky finger. I’ve now collected my 10th rock sample, seen here in the late afternoon Martian sun.
Here's some links from Planned Parenthood:
https://linktr.ee/ppvirtualvolunteerprogram
Feel free to boost or share.
🌸🌹2ck 🌱🐇
boosted
The best thing today was that we all lifted our gaze from ourselves to the universe for a moment.
@barefootstache passwords aren't independent of the user or even the user name. even if you "mix up" the correspondence, the plaintext still gives me more information than I would have otherwise
🌸🌹2ck 🌱🐇
boosted
For your #JWST needs, here's a slider comparing the HST to JWST images: https://imgsli.com/MTE2Mjc3
@polymerwitch omg why can I vote in this? I've never even been there
🌸🌹2ck 🌱🐇
boosted
JWST image
So, what are we looking at in this image?
https://www.nasa.gov/sites/default/files/thumbnails/image/main_image_deep_field_smacs0723-5mb.jpg
The image is stunning, a huge leap over Hubble (comparison at https://imgsli.com/MTE2Mjc3 ) and really showcases JWST.
The main target is a cluster of galaxies called SMACS 0723 (or more completely J0723.3-7327). Here's a preprint about the cluster: https://arxiv.org/abs/2207.05007
0723 is very far away, NASA says 4.6 billion light years. Astronomers measure these big distances as redshift, z. Our galaxy is z=0, 0743 is at z=1.38 to z=1.45
I think all of the spiky bois in the image are foreground stars (in our galaxy), so just a few hundred thousand light years at most.
The really interesting bit, and the reason for imaging 0723, is the stuff that's even farther away -- the gravitationally lensed galaxies, with their light smeared into crescents and whorls as it travels past 0723 towards us. We could see some of this with Hubble, but the added sensitivity with JWST is just spectacular. Those galaxies will be at z=6 and even deeper.
JWST image
@eqe i was gonna ask about the "smearing" of some of the galaxies. thought it may be gravitational lensing but I'm not familiar with the numbers there, so I thought the effect would be less dramatic--if I'm seeing this properly, it seems like the whole image is at least slightly warped in this way
too many boosts, mention of ableists, mention of slurs, violence
@Byte@kolektiva.social i was joking, but I literally don't. (also, i just learned there are a whole slew slurs the brits came up with just for other Europeans, so it's not that obvious) @emi
@jmw150 which server is that?
A capable software engineer and aspirating (sic) cook. Also posting about space stuff (mostly NASA) occasionally
pronouns: he, him
Joined Apr 2020
🌸🌹2ck 🌱🐇's choices:
