Hi, I’m sbird! I like programming and am interested in Astrophysics and all things space. I also have a hobby of photography.

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Joined 1 year ago
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Cake day: June 12th, 2025

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  • A planetary mass disc would collapse into a sphere. Gravity works towards the centre of mass, so it makes sense that it becomes a sphere once the force is great enough, where the distance from said centre of mass is nearly equal from all points on the surface. it’s the reason why smaller objects are usually oblong and weird shaped (e.g. asteroids) while larger objects are close to spherical (e.g. Pluto!)

    And what do you mean by “uniform gravity”? If you mean for a theoretical person on the planet, it would not be uniform on the edges as you have an imbalance of forces towards either side, while in the centre it is symmetrical, an equal amount of mass on either side. On a perfectly spherical planet, it would all add up to a downward force on any point on the surface


  • There was always an in-between point from pagan beliefs and Christianity during the Roman era, so it’s pretty normal I think. In many places, a mixture of beliefs is super common. In China, for example, the majority have a mix of Chinese traditional beliefs and Buddhism. Japan has their Shinto beliefs mixed with Buddhism and Christianity, and of course the indigenous peoples who were colonised can (important, not all) have a mixture of their own beliefs and the ones brought in by the settlers






  • Breakout 71 (available on F-Droid) is awesome and is like a souped up version of the ball bounces on paddle to break blocks game. I particularly enjoy the way it controls, when you let go it autopauses the game and unpauses when you click on the screen again. There are different upgrades that you get every round and some of them can get out of hand very quickly!

    Unciv is a FOSS recreation of Civilisation V and has an Android version available on F-Droid, it looks pretty neat if you like that sort of game!

    And of course, you can always install Retroarch and a frontend (e.g. ES-DE, RetroHrai!, Daijisho, that last one being closed-source while the former two are FOSS) to emulate retro games and, depending on your phone, you can emulate up to Switch! I personally enjoy playing 3DS (horizontally) and GBA (vertically) on my phone. You might also like Lemuroid, which is an emulator that is configured well OOTB but less flexible than Retroarch.



  • I imagine defining what counts as “self defense” is difficult. A lot of the gun violence is justified as “self defence” (whether that is accurate is a different story), whether it’s trying protecting family/friends, your property, or yourself. It’s a lot easier to come up with a statistic of how many people got shot by a gun.

    And you are correct that more guns is correlated with more gun-related violence, there are plenty of studies on this for many different parts of the world. When I was in middle school, we learned about this in geography class, with data points in Australia, the US, China, and various countries in Europe, and there was a very strong relationship between number of guns and the cases of gun violence!


  • Arun often puts heavy emphasis on the AI features on the devices he reviews, making them sound super magical and wonderful. Having a machine generate “hand painted” artwork also seems wrong.

    Also of note, this is for a wallpaper on a smartphone (that I believe he continued to use on his main phone), and was used as an example of how Samsung is actually far ahead of the competition and they aren’t really lagging behind the competition.

    Aside from his views on AI, he also makes videos in the style of “I spent X amount of money on these gadgets”, which aren’t to my taste. In particular, I don’t enjoy how he covers fitness/health gadgets that border on the line of pseudoscience.




  • There’s thus really good video on populism by Ryan Chapman (on YouTube) that explains in really well, but in a nutshell, populism is the idea that this group/leader represents the people and is fighting against “the establishment”. It is the converse of pluralism, which is the acceptance of many different ideas. Populism is not inherently dangerous but it is often associated with authoritarianism (and rightly so) due to its anti-pluralistic nature.

    Ryan explains it a lot better than I can do in an internet comment. I find he has a pretty factual and balanced take on the topics he discusses.







  • I have no idea what your reading interests are or reading level, but I’m currently reading “Cosmos” by Carl Sagan, and it’s an excellent book that is still quite relevant to the modern day! Sagan has a bunch of other books too you might be interested in, like “Pale Blue Dot” or “Contact”, the latter being sci-fi rather than nonfiction.

    I am also looking forward to reading “Reality is Not What It Seems” by Carlo Rovelli, as well as “A Brief History of Time” by Stephen Hawking.

    I’m interested in physics, astronomy, and space stuff, can you tell?

    If you are of a lower reading level, as a kid I loved the Treehouse books by Andy Griffiths and Terry Denton, where in each book, an additional 13 stories is added, each filled with silly rooms. Mr Big Nose, the publisher who occasionally checks in, has a literal exploding nose. Andy and Terry get up to all sorts of antics, often accompanied by Jill, their animal-loving friend who is based on the wife of Andy (the author)

    No particular chair, but I always bring one or two books with me so I have something to do when travelling (e.g. in long train or aeroplane trips), waiting in a restaurant, etc.

    Don’t really take notes when reading, but if that helps you remember the things you have read than that’s awesome!

    p.s. I’m sooo jealous you have an e-book reader!