@Zi7ar21

2 Followers
59 Following
10 Posts
I wanna be a physicist someday
LocationIdaho, US
Websitehttps://astrograde.net
Pronunciation (IPA)/zizɑr ˈtwɛntiwʌn/
InterestPhysics
New blog post: A Decade of Slug
This talks about the evolution of the Slug font rendering algorithm, and it includes an exciting announcement: The patent has been dedicated to the public domain.
https://terathon.com/blog/decade-slug.html
None of my friends really use Mastodon, but my friend @dim just set up a fedi instance. Welcome, computer toucher!!
Thanks EFF, but I prefer the original:
https://amiunique.org/
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I rewrote my #buddhabrot renderer in #cprogramminglanguage using #openmp! It runs faster than my #cplusplus `std::threads` implementation.

https://github.com/Zi7ar21/buddhabrot

@openmp_arb

GitHub - Zi7ar21/buddhabrot: A simple Buddhabrot renderer written in C++11.

A simple Buddhabrot renderer written in C++11. Contribute to Zi7ar21/buddhabrot development by creating an account on GitHub.

GitHub
@sebinthestars Thank you for hosting! Astrodon will be missed ;.(

After two and a half years of building this community, I've made the decision that it's time to shut down Astrodon.social.

Since 2022, around 4,000 users have registered on astrodon.social. However, fewer than 10% of those users are active each month, and fewer than 1% post regularly. Because of the way Mastodon works, the data for every one of the those users, even the inactive ones, has to be kept forever and keeps on growing. There's no way to remove posts or archive them out of the database, and running a large database gets very expensive.

Running Astrodon costs more than €300/month, which means that the costs of running the server are primarily going toward servicing fewer than 50 active users, the most active of whom are organisations. Even with donations, Astrodon has now cost me more than €5000 to run.

While I’ve considered the option of turning Astrodon into a commercial service or creating a nonprofit, I’m reluctant to go down that route. Managing a business comes with a host of overhead tasks like tax reporting and navigating different tax regimes due to our global user base, which is something I want to avoid. My goal has always been to create a free and open space, but the reality is that the free part isn't sustainable.

I'm not shutting down Astrodon immediately. I want to give everyone ample time—likely over the next two to three months—to find alternative service providers and transition smoothly. This isn't a decision I'm making lightly, and I appreciate your understanding and support as we navigate this transition. If you have any questions, concerns, or suggestions, please feel free to reach out to me directly through DMs.

@destevez Do you mean SPICE the circuit simulation software or something else?

Btw do you know if there is a similar free software for RF design? I can add all the non-idealities I want with small ideal inductors and capacitors but it's all still an approximation of the electromagnetic physics that make circuits work.

I mean, the shape of PCB traces can even be used to make antennas, filters, and even flyback inductors/transformers for power electronics!

@destevez I'm going to start using mastodon now too! You're one of the few people I know using it.
New blog post: Time-dependent delay in @gnuradio. I have added a new block to gr-satellites that performs a time-varying delay. This block works similarly to the Doppler correction block: the delay versus time is defined by a text file prepared beforehand. In the post I explain some of the implementation details of this Time-dependent Delay block, and how to use it. Read more: https://destevez.net/2025/05/time-dependent-delay-in-gnu-radio/
Time-dependent delay in GNU Radio – Daniel Estévez

I wish there were a commission to regulate my neighbor's lighting to prevent it from spilling onto my property and sky creating light pollution, what's the difference between that and the poorly penetrating millimeter wave electromagnetic radiation the FCC regulates? A couple terahertz? Pfft...