Perilipomena

Special Relativity simulation (javascript with WebGL) with interstellar travel. It's a standalone 12MB javascript file that will run in your browser.

At high gamma, all the stars become visible and they are all aberrated towards your direction of motion. This will probably overwhelm your GPU: if your GPU can't handle it, just resign yourself to slower travel.

Here is a lightweight javascript prototype that simulates a "stellar flyby" with proper calculation of the visible spectrum (and representation in rgb) based on Planck radiation (this was turned into a mere lookup table for the main simulation): relativistic_flyby_starfield.html.

Javascipt browser for Rahlfs' edition 1935 of the Septuagint, with Greek concordance and aligned Hebrew text. This is a standalone 12MB file running in the browser (also works offline).

Most online Bible browsers are Hebrew-centric, and it is hard to find a concordance of the Greek OT, or to match the Greek to the Hebrew text (it's mostly Hebrew-to-KJV). This provides a concordance of the Greek OT, and there is also a heuristic alignment of the Greek text to the Hebrew (this may fail when the differences are substantial).

The text of Rahlfs is from wikisource, but it has been checked against CATSS, with a small number of typos corrected. We do not have a digitization of the critical apparatus, but the text has been matched to Swete's LXX (after verse alignment), which is mostly a diplomatic edition of Codex Vaticanus, and differences between Rahlfs and Swete are shown. There is also Greek lemmatization and morphological analysis, in part due to Project Perseus' "Morpheus", and Hebrew lemmatization, entirely due to Open Scriptures (via HELFI).

A Gothic translation of the Akathist to the Theotokos:
Unsitjands Saggws Frumaweihái Guþbairandein (pdf).

Edition of the Greek and Slavic text with references:
Ο ΑΚΑΘΙΣΤΟΣ ΥΜΝΟΣ ΕΙΣ ΤΗΝ ΥΠΕΡΑΓΙΑΝ ΘΕΟΤΟΚΟΝ (pdf).

This is the current iteration of the Prisoner's Dilemma evolutionary agentic simulation. It now aspires to model the human condition as accurately as, well, humanly possible. Hence the project name, τὰ ἀνθρώπινα.

It uses the client-server approach tested in the Predator-Prey simulation, the server running in python, the client in javascript. Prisoners' Dilemma strategy is now downstream of the "Big Five" personality types, openness, conscientiousness, extraversion, agreeability, neuroticism, which are genes propagated by sexual procreation. Agents have biographies, familial relations and mental states (short-term happiness and longer-term "world-trust"). They have cultural-linguistic and racial-ethnic identities, and genes modifying their ingroup/outgroup behavior based on cultural, genetic and tribal similarity.

The aim here would be to simulate thousands of years of evolution on populations of thousands or tens of thousands of individuals. So there is a tradeoff between simulation complexity and simulation scope. I can currently run this on a laptop in a reasonable timeframe for a couple of centuries and a couple of thousand individuals, but there is potential for optimization.

This simple predator-prey simulation was the prototype for a server-client architecture for agentic simulations. The simulation is running in python the visualization and user interface is running in javascript in a web browser. This has the advantage that the simulation can run on its own on a server somewhere, unsupervised, and you just fire up the client when you want to see how it is doing.

In spite of being just a prototype for the architecture, this simulation has its own charm. Predators and prey have vision and speed, vision determines the distance to which they may spot prey or threats, speed determines their chase or flight speed, but cost on speed is quadratic, so there is a precarious balance of having just enough vision and junst enough speed. Prey also have intra-species aggression, so even after predators die out, prey can split into tribes or subspecies that compete for territory.

The idea was: Prisoner's Dilemma competition, but with evolving strategies. Watch altruism and loyalty emerge from the law of the jungle.

This prototype is running entirely in python (using pygame). It does have quite some bells and whistles, optional sexual reproduction and elaborate sexual selection mechanics, as well as cultural and tribal ingroup/outgroup behaviour.

But it had to be redone from scratch, because the Prisoner's Dilemma strategy encoding was just too smart for its own good, and thus evolutionarily unstable (with reasonable strategies hidden in a sea of nonsensical ones in evolutionary topology).

Whois reports "First registration date: 2000-06-26". Crawled by archive.org Feb 2001; somewhat maintained through 2013; dormant 2014–2025.