Video game console company Updated 2025-07-16
Video game design Updated 2025-07-16
National Institute of Standards and Technology Updated 2025-07-16
These people are serious.
NileRed Updated 2025-07-16
Great chemistry content. Well detailed setups, notably substance extraction from off-the-shelf products.
Open source video game Updated 2025-07-16
Lists:
- trilarion.github.io/opensourcegames/
- www.slant.co/topics/1933/~best-open-source-games
- libregamewiki.org/Main_Page
- www.reddit.com/r/opensourcegames/comments/197luuk/what_is_the_best_open_source_game_in_your_opinion/
- www.pcgamer.com/yall-know-about-these-huge-lists-of-free-open-source-game-clones-right/ is a list of lists
Why would anyone ever waste time playing a closed source game, when this will inevitably lead to endless hours of decompilation down the line when you want to:
Those who devote their time to the useless development of open source video games, before we even have decent open source development tooling, will, without a doubt, have their place in Heaven.
- tower defense
- www.edopedia.com/demo/pixeldefense possible source github.com/jesseakt/PixelDefense 2020-03 desperately lacks a fast forward button and enemy health bars
- platformer
- 2D platformer
- 3D platformer
- OpenClonk: Terraria-like 2D mining crafting game. Pretty well done. Not sure if you can have a super huge open world. The fact that the music stops completely so often is a bit saddening.
- Pingus: Lemmings clone. Very good!
- github.com/The-Powder-Toy/The-Powder-Toy: en.wikipedia.org/wiki/Falling-sand_game in C++. No Ubuntu 19.10 package it seems, but was easy to compile from source.
- roguelike
- Worms clone
- Hedgewars
- pokemon clone:
- Tuxemon. Worked on Ubuntu 21.10. 20ea4181e1c0db04934ee69951ea1836a3b1f642
- ARPG
- Diablo II clones:v1.12 download Worked well on Ubuntu 21.10.
- The Mana World: www.themanaworld.org/ Started somewhat as a loose The Secret of Mana clone, but they've added online play capabilities, effectively making it a MMORPG.Their user acquisition as of 2021 is really bad. Download is a wiki page, there are two client versions, etc. The .deb did not work out o box on Ubuntu 21.10 due to unmet dependencies:fails with:
sudo apt install ./manaplus_amd64.debso it won't be able to play without trying to compile and possibly minor ports since the deb does not packs dependencies. Some requests for a release with all dependencies prepacked:Their home page says it all:manaplus : Depends: libpng12-0 (>= 1.2.13-4) but it is not installable Depends: libsdl-gfx1.2-4 (>= 2.0.22) but it is not installable Depends: manaplus-data (= 1.6.4.23-2) but 1.9.3.23-6 is to be installedSad.Server status: Online: 9 players
- Diablo II clones:
- Factorio clones:
- github.com/tobspr/shapez.io Also browser based.
Video game graphics Updated 2025-07-16
What poor countries have to do to get richer Pick few good bets and invest enough on them Updated 2025-07-16
Therefore, you have to pick a few key the next big thing deep tech bets, and invest on those enough.
Therefore, the bets have to be well selected, because it is useless to make several insufficient investments: you have to pick a few ones, and put enough time and money into each one of them for them to stand any chance. These bets should be made and reevaluated on 5/10 year horizons.
The key things that you have to select are:
- which poor students you will bet on educating. Since you can't give amazing education to everyone, you have to select the most promising poor students somehow, and give those free amazing learning conditions: free gifted education
- which ares to focus on. Ciro believes that molecular biology technologies and quantum computing would be good bets. Focusing on the previous next big things, e.g. classic computers, is always a losing bet on average
And then you only tax those companies heavily when the start to bring in real money. These are startups remember! You only need 5 unicorns a year to call it a success. And countries should not be greedy and invest through equity, but rather recoup their investment through taxation alone.
Ciro's second removed uncle, who was a physicist at the University of Campinas, one of the best universities in the country, told him an anecdote. He had moved from fusion energy research to solar cell research. At some point, there was a research lab that needed 10 million to buy a machinery critical for their experiment. They asked and asked, and finally the government gave them only 2 million. So in the end they spent those 2 million in random ways, but of course did not achieve their research goal and no money came out of it.
He also explained how as a result of the insufficient investments, he felt clearly that some of the semiconductor production facilities related to solar power he saw simply were not able to control the production process adequately to produce consistent silicon. As a result, everything failed sooner or later as people found more and more bugs that they did not have the time to solve.
Another key investment is enticing back experienced exchange-students who have learnt new techniques to be heads of laboratory/founders to back in your country.
A fantastic initiative from Brazil for example is BRASA, which aims to put together Brazilian exchange students to make a difference back in Brazil.
Do not try to forbid external companies from selling in your country. Instead, fund your own companies to be able to fight the external market off. And if they can't, let them die and pick a different bet. Video "How Taiwan Created TSMC by Asianometry (2020)" has a good mention. Protectionism is something that Brazil notably tried to do, and look at what it led, not a single international success.
What poor countries have to do to get richer Teach everyone English Updated 2025-07-16
This is obviously the most efficient investment any non-English speaking country must do, because you need to know English to be able to learn from rich countries and innovate.
Further discussion at: Section "Having more than one natural language is bad for the world".
Allen Institute research project Updated 2025-07-16
Identity element Updated 2025-07-16
Logogram Updated 2025-07-16
Saturday Morning Breakfast Cereal Updated 2025-07-16
Train Updated 2025-07-16
Basically:One is reminded of the Superconducting Super Collider on the federal level issues.
- too much local power
- republican/democrat partition means federal projects start in one government, get killed on next
youtu.be/rcjr4jbGuJg?t=457 though mentions that the Palmdale detour was mainly to avoid some hills.
Eta (letter) Updated 2025-07-16
nodejs/sequelize/raw/parallel_update_async.js Updated 2025-07-16
gothinkster/realworld Updated 2025-07-16
Ahh, you can't have new ideas anymore!
Basically puts together every backend with Front-end web framework to create the exact same website.
The reference live demo can be found at: demo.realworld.io/#/ It is based on Angular.js as it links to: github.com/gothinkster/angularjs-realworld-example-app TODO backend?
There are however also live demos of other frontends, e.g.:Note that all those frontends communicate with the same backend.
- React: react-redux.realworld.io. But note that tag addition at post creation is broken there as of March 2021, but not on master: github.com/gothinkster/react-redux-realworld-example-app/issues/151#issuecomment-808417846 so they forgot to update the live server.
- Vue.js: vue-vuex-realworld.netlify.app
As of 2021 Devs are seemed a bit too focused on monetizing the project through their "how to use this project" premium tutorial, and documentation could be better: just getting the hello world of the most popular backend with the most popular frontend is not easy... come on.
github.com/gothinkster/realworld/issues/578 asks for community support, as devs have moved on since unfortunately.
Remember:
- by default, the frontends hardcode the upstream public data API:
https://conduit.productionready.io/apiso you have to hack their code to match the port of the backend. And each backend can have a different port. - when you switch between backends, you must first manually clear client-side storage cookies/local new run will fail due to authentication issues!
Important missing things from the minimum base app:
- server-side rendering:
- github.com/arrlancore/nextjs-ssr-real-world-app-example. As advertised, that global instance does render with JavaScript disabled! Proposed for upstream at: github.com/gothinkster/realworld/issues/423
- github.com/gothinkster/realworld/issues/266
- no javaScript bi-directional communication library built-in... come on: github.com/gothinkster/realworld/issues/107
- email notifications however as tested on the live demo: demo.realworld.io/#/
- error handling is broken/missing/inconsistent across apps
First you should the most popular backend/frontend combination running, which is the most likely to be working. We managed to run on Ubuntu 20.10, React + Node.js Express.js as described at github.com/gothinkster/node-express-realworld-example-app/pull/116:Then just:on both server and client, and then visit the client URL: localhost:4100/
- github.com/cirosantilli/node-express-realworld-example-app/tree/mongo4 which has a simple patch on top of github.com/gothinkster/node-express-realworld-example-app/tree/ba04b70c31af81ca7935096740a6e083563b3a4a for MongoDB 4 supportThis requires you to first install MongoDB on Ubuntu and ensure you can login to it from the command line.
- github.com/gothinkster/react-redux-realworld-example-app/tree/9186292054dc37567e707602a15a0884d6bdae35 patched to use the correct server host/port
localhost:3000:diff --git a/src/agent.js b/src/agent.js index adfbd72..e3cdc7f 100644 --- a/src/agent.js +++ b/src/agent.js @@ -3,7 +3,7 @@ import _superagent from 'superagent'; const superagent = superagentPromise(_superagent, global.Promise); -const API_ROOT = 'https://conduit.productionready.io/api'; +const API_ROOT = 'http://localhost:3030/api'; const encode = encodeURIComponent; const responseBody = res => res.body;
npm install
npm startYou have to hit the Enter key to add tags, it's terrible: github.com/gothinkster/react-redux-realworld-example-app/issues/151#issuecomment-808417846
One cool thing is that the main repo has unified backend API tests:so the per-repository tests are basically useless, and that single test can test everything for any backend! There is no frontend testing however: github.com/gothinkster/realworld/issues/269 so newb.
git clone https://github.com/gothinkster/realworld
cd realworld
git checkout e7adc6b06b459e578d7d4a6738c1c050598ba431
cd api
APIURL=http://localhost:3000/api USERNAME="u$(date +%s)" ./run-api-tests.sh The CSS of Ciro Santilli's website looks broken Updated 2025-07-16
That which does not exist, cannot be broken.
And of course:
Continuous spectrum (functional analysis) Updated 2025-07-16
Unlike the simple case of a matrix, in infinite dimensional vector spaces, the spectrum may be continuous.
The quintessential example of that is the spectrum of the position operator in quantum mechanics, in which any real number is a possible eigenvalue, since the particle may be found in any position. The associated eigenvectors are the corresponding Dirac delta functions.
Controlled quantum gate Updated 2025-07-16
Controlled quantum gates are gates that have two types of input qubits:These gates can be understood as doing a certain unitary operation only if the control qubits are enabled or disabled.
- control qubits
- operand qubits (terminology made up by Ciro Santilli just now)
Generic controlled quantum gate symbol
. Source. 
When the operand has a conventional symbol, e.g. the Figure "Quantum NOT gate symbol" for the quantum NOT gate to form the CNOT gate, that symbol is used in the operand instead.
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