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Joshua Bloch

@joshbloch.bsky.social

Effective Java author, API Designer, CMU Prof, Swell guy.

1,322 Followers  |  95 Following  |  804 Posts  |  Joined: 17.11.2024  |  2.2771

Latest posts by joshbloch.bsky.social on Bluesky

grateful to hear him say this out loud β€” too few institutions have this decency and courage

08.10.2025 03:54 β€” πŸ‘ 411    πŸ” 81    πŸ’¬ 4    πŸ“Œ 1
Preview
No account? No Windows 11 for you, says Microsoft : Workaround sent to the big OOBE in the sky with latest Insider builds

This is not good. When you're running Windows on a mini-PC controlling your astrophotography rig, you want it to be light and nimble. In fact, some companies that sell these mini-PCs (e.g., MeLE) ship with a modified OOBE that doesn't ask for a Microsoft login.
www.theregister.com/2025/10/07/w...

08.10.2025 00:07 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

And the Washington Post that we had during the first Trump administration would be methodically cataloging his lies.

07.10.2025 16:54 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Phrases like "violating the law" and "lying" are useful here.

07.10.2025 15:44 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

This is not what democracy looks like.

05.10.2025 15:54 β€” πŸ‘ 5    πŸ” 3    πŸ’¬ 0    πŸ“Œ 0
They Might Be Giants - The Mesopotamians (official TMBG video)
YouTube video by ParticleMen They Might Be Giants - The Mesopotamians (official TMBG video)

Three years earlier, @tmbg.bsky.social came along and created this. www.youtube.com/watch?v=jAMR...

05.10.2025 07:25 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

This is not what democracy looks like.

04.10.2025 15:56 β€” πŸ‘ 7    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0

Why don't the real police arrest them, as they would any other things who engaged in this sort of behavior?

03.10.2025 20:14 β€” πŸ‘ 13    πŸ” 0    πŸ’¬ 2    πŸ“Œ 0

Serious question: can't you just report "icy conditions"using Maps or Wayze?

03.10.2025 20:12 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

I'm not a fan of everything Newsom does, but this is a good move.

02.10.2025 22:56 β€” πŸ‘ 10    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

An update: my master dark frame was horrible broken, "infecting" my stacks and making them susceptible to this artifact. Also it introduced a nasty vertical line that I had to hide by aggressive darkening. I'll make a new dark library, and reprocess a few favorite images. Never a dull moment...

01.10.2025 04:27 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

(I see no grid-like artifacts in the 1:1 version, which supports my contention that these are resampling artifacts.)

30.09.2025 08:50 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
Post image Post image Post image

For your amusement, here's the stack that was processed to make the previous version, auto-stretched and rendered by AsiFitsView at 3 resolutions: about 1900x1900, about 2K x 2K, and 1:1 (partial image). Just look at the artifacts (which I take to be MoirΓ©s).

30.09.2025 08:49 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Yeah, that's essentially what I did in the one that I just sent. I tossed the original version, so I had to start from scratch. I'm not 100% satisfied with my stretch in the version I just posted, but good enough, I suppose, since it's past my bedtime ;)

30.09.2025 08:37 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
Post image

Here's a reprocessing, followed by 2048x2048 resampling as part of export to JPEG. I believe this should eliminate all of the artifacts.

30.09.2025 08:35 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Heart Nebula image by Josh Bloch. Exported to 2048 x 2048 to prevent Moire effects.

Heart Nebula image by Josh Bloch. Exported to 2048 x 2048 to prevent Moire effects.

Here's a reprocessing, followed by 2048x2048 resampling as part of export to JPEG. I believe this should eliminate all of the artifacts.

30.09.2025 08:34 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

I now think the grid may be a MoirΓ©. I don't see it at 1:1 (the image is a square, 3k pixels on each side). I should be uploading more carefully sized images to BlueSky.

30.09.2025 06:19 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Good catch. I don't know what's causing the problem, but I'm hot on the trail. One of the things I like about astrophotography is that provides so many brainteasers.

30.09.2025 03:53 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
Post image

The Pelican nebula, from my backyard.

29.09.2025 00:18 β€” πŸ‘ 29    πŸ” 2    πŸ’¬ 1    πŸ“Œ 0
The Heart nebula (IC 1805) from Josh's backyard. ~4 hrs. total integration time.

The Heart nebula (IC 1805) from Josh's backyard. ~4 hrs. total integration time.

The Heart nebula, from my backyard. (It doesn't really look like a heart.)

29.09.2025 00:17 β€” πŸ‘ 15    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

This is not what democracy looks like.

28.09.2025 18:22 β€” πŸ‘ 16    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0
Western Veil nebula from Josh's backyard, 2 hours total integration time. Askar SQA55/ZWO ASI533MC Pro/Celestron AVX.

Western Veil nebula from Josh's backyard, 2 hours total integration time. Askar SQA55/ZWO ASI533MC Pro/Celestron AVX.

Western Veil from my backyard (two hours total integration time).

28.09.2025 18:15 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

ICE is a secret, unaccountable police force for an authoritarian regime.

Pass it on.

27.09.2025 05:13 β€” πŸ‘ 176    πŸ” 64    πŸ’¬ 1    πŸ“Œ 1

Imagine my surprise. Here's where we get to find out whether the Supreme Court cares more about the law and the welfare of the nation or pleasing its 45th (and likely worst) president.

27.09.2025 07:29 β€” πŸ‘ 2    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
Merriam-Webster's Collegiate Dictionary, Twelfth Edition | Merriam-Webster Announcing the new Twelfth Edition of Merriam-Webster's Collegiate Dictionary, thoroughly updated and redesigned to be even more useful and engaging for students, professionals, and everyone who loves...

I can't tell you how excited I am to hear this news. I know it's irrational, but nevertheless… They haven't published a new edition published in 22 years, and I 𝘭π˜ͺ𝘬𝘦 physical dictionaries. Merriam-Webster's has been my favorite for over four decades.
www.merriam-webster.com/collegiate-d...

26.09.2025 18:42 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Preview
Trump Gold Card Available now.

laughingstock
noun
laugh·​ing·​stock ˈla-fiΕ‹-ˌstΓ€k ˈlΓ€-
Synonyms of laughingstock
: an object of ridicule
trumpcard.gov

24.09.2025 23:56 β€” πŸ‘ 4    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Hopefully we'll be treated to legal proceedings with an amusing discovery phase, but I doubt it.

24.09.2025 23:42 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Oops. Of course I meant to type not, but I'll let it stand. It is vile.

24.09.2025 21:05 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

This is now what democracy looks like.

24.09.2025 20:30 β€” πŸ‘ 6    πŸ” 0    πŸ’¬ 2    πŸ“Œ 0

Also a circuit breaker finder that induces electric noise on a circuit, and lets you find the corresponding circuit breaker at the panel. Also an oscilloscope (even if you never use it on your home electrical system).

24.09.2025 20:27 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

@joshbloch is following 20 prominent accounts