Jhagas Hana Winaya @jhagas@qoto.org

Watch "What is Jacobian? | The right way of thinking derivatives and integrals" on YouTube
https://youtu.be/wCZ1VEmVjVo

@thor @Jessica
2000s techie: My goal is to connect everything to the internet

2020s techie: My goal is to disconnect everything from the internet

@Science

**Interesting fact of the day**: The speed of light has only been proven to be a constant speed **round trip**. Not the instantaneous speed of light nor the speed of light while heading in a single direction has ever been able to be proven as constant.

In other words, it has never been experimentally disproved that light doesn't, for example, preferentially travel at half the speed of light in one orientation, but instantaneous in another. In fact it may very well be impossible to test the one-way speed of light due to the very consequences of relativity itself.

#science #physics #relativity

Richard #Stallman a.k.a. #RMS is the founder of the Free Software Foundation (#FSF), author of the original versions of **gcc** and **Emacs**, and perhaps best known for his creation of the GNU Public Licence a.k.a. #GPL.

Thanks to the pioneering work of Richard Stallman, Android has a freely available kernel that can boot it, and companies like Samsung are forced to release their augmented kernel source code to us every month, so that we can build — using Stallman's compiler — a working custom recovery like TWRP.

Richard Stallman is currently under coordinated attack by the cancel culture mob. They have him firmly in their sights and have set their hearts on trying to get him removed from the board of the organisation he founded in 1985, and which has been his life's work.

The reason for the attack is that Stallman is alleged to hold views that are "problematic" in the eyes of his detractors.

My own stance is that to even engage in debate of Stallman's views would be to lend credence to the notion that they are somehow germane to the work that Stallman does in support of free software. I contend that they are not, which is not to imply that the accusations leveled at Stallman would otherwise require intellectual or moral contortion to refute. They would not. Stallman's views, even if they were relevant, have been grossly misrepresented.

The attempted silencing of free speech is always painful to behold, but this ill-conceived attack on Stallman is particularly stomach-turning, given how much of his life he has devoted to the freedom of others, including those who accuse him now.

His contributions to free software and his consistent, uncompromising commitment to his beliefs regarding software freedom have made millionaires of others, including many among his accusers now, while Stallman himself continues to lead a life of subsistence.

#Android would not exist if it hadn't been for Stallman.

Without Stallman, we would not have the assurance that important software like #Magisk will continue to exist long after the project's creator has moved on.

Without Stallman, #TWRP would not now exist.

Were it not for Richard Stallman, most of the cheap electronic appliances and gadgets in your home would simply not exist.

Without Richard Stallman's groundbreaking work, the world would be a different and much worse place.

Now you can do something in return. Richard Stallman needs your support.

Please consider signing the petition below:

https://github.com/rms-support-letter/rms-support-letter.github.io

If you need more background before signing, please take the time to do your own research and reach your own conclusions.

Oooh, DeepL has added 13 European languages! Including Danish, Swedish, Hungarian, …

DeepL quality consistently outperforms Google Translate. It's also great because DeepL doesn't use English as common ground between non-English languages. https://www.deepl.com/blog/20210316.html

@Science

Hey everyone, a supernova just went off in Cassiopeia!!!! Right now it is in the early stage so only visible by telescope but after a few days it is likely to be visible to the naked eye. Supernovas are fairly rare so might want to make some time to see this one!

#astronomy #Astrophotography #space #science

"Police are warning students and universities not to access Sci-Hub, an "illegal website" that allows users to download scientific research papers normally locked behind expensive subscriptions."

Very bad indeed. That name again: Sci-Hub. Remember it so you can avoid it. Ahem.

After months of stalling, Google finally revealed how much personal data they collect in Chrome and the Google app. No wonder they wanted to hide it.

Spying on users has nothing to do with building a great web browser or search engine. We would know (our app is both in one).

Original tweet : https://twitter.com/DuckDuckGo/status/1371509053613084679

https://github.com/cselab/aphros/wiki/Aphros-Explorer
Gallery of interactive fluid simulations. They are configured with plain text, run in the browser, and can be easily shared
#CFD #WebAssembly #fluiddynamics

Audacity v3.0.0 has been released! Looks like a great upgrade for that free audio-editing software I love so very very much. ​

Get it: https://audacityteam.org/download/

Release notes: https://wiki.audacityteam.org/wiki/Release_Notes_3.0.0

New features: https://manual.audacityteam.org/man/new_features_in_this_release.html

2021-03-14, 16:45, Sunday

You know what would be cool? If governments or political parties flexed not just their programs and ideologies, but their resources in terms of mathematicians and supercomputers. Hey, we can run these supercomplex simulations instead of blindly picking whatever looks like a decent option! Would save some trouble for average folk that faces the consequences of the decisions made by politics. Not a solution to all the problems, but it would be nice.

Hi everyone @Science !

I'm in the process of writing (and hopefully aggregating contributions for) short scripts to help academics/researchers do various things more effectively. This is still very much in its infancy, but considering how often I tend to automate things, I expect it to grow at a pretty steady pace.

Current examples include short API wrappers to query different journals for given search terms and date ranges to pull pdfs directly, and a modular RSS helper to redirect to papers directly from your feeds. I'm currently working on scripts for remote cluster execution, traversing and executing code on git experimental branches and more!

I've started a repo here https://github.com/johnabs/ASR, and if anybody has ideas for scripts that researchers could use to help with their workflow, that would be awesome, and it would be great if people are willing to contribute.
#Science #research #coding #automation

Water electrolysis in your web browser. Interactive real-time chemistry and fluids.
https://cselab.github.io/aphros/wasm/electrochem.html
#simulation #chemistry #cplusplus #webassembly

how most #blockchain tech is described
vs
how the apps actually work

For all the talk of tolerance and diversity conformity of thought is rigourously enforced in the mainstream.

It's only taken a few hours on Mastodon to appreciate once again how heterogeneous people's views really are.

Tradition of removing shoes in home. Green: shoes removed; Blue: shoes not removed.
https://mapsontheweb.zoom-maps.com/post/176735487615/world-map-of-tradition-of-removing-shoes-in-home

#fedorahints #fedora #linux

How to make a gif file from video file?

As simple as it never was.

Open terminal app, install ffmpeg:
sudo dnf install ffmpeg

then:
ffmpeg -i input_video_file output.gif

We're using low-cost speaker technology to restore Australia's most threatened marine ecosystem 🔊 🌊

Can you guess what it is?
Learn more here:
https://blog.ausocean.org/2020/06/how-the-sounds-of-the-ocean-help-oysters-select-their-home.html

#technology #opensource #marinerestoration