antognini

6 ms·

31.
by antognini 11mo ago
It is worth noting that the friar who organized this book burning was recalled to Spain to stand trial on account of his actions.
32.
by antognini 11mo ago
The origins of the 260 day ritual year are not known for certain, but there are a couple of hypotheses: 1. Pregnancy. 260 days is roughly the gestation period of a baby, so this may have been the inspiration for tracking this duration. (
33.
by antognini 1y ago
The relative phase between the different frequencies. You're correct that the ear can't pick up a global phase change. As an extreme example, consider a delta function: there is silence, then a brief spike, and then silence again
34.
by antognini 1y ago
Orbital mechanics can be counterintuitive. There was a fairly basic orbital mechanics problem that caused some debate among physicists back in the 1970s. The problem went like this: You are in a spacecraft orbiting the Earth. You distrib
35.
by antognini 1y ago
Yes this is another important difference between human auditory perception and classical signal processing algorithms. Typically when processing audio we take a Fourier transform and then throw away the phase information. Mostly the amp
36.
by antognini 1y ago
If you want to get really deep into this, Richard Lyon has spent decades developing the CARFAC model of human hearing: Cascade of Asymmetric Resonators with Fast-Acting Compression. As far as I know it's the most accurate digital mode
37.
by antognini 1y ago
Around 95% of the OpenAI engineers signed a letter to the board threatening to quit unless he was reinstated.
38.
by antognini 1y ago
I'm guessing the idea is that in GR, the solution for a black hole with charge looks different from one without. So in principle you could infer the charge of a black hole based on the curvature of spacetime.
39.
by antognini 1y ago
They do, but there's just not that much mass compared to stars.
40.
by antognini 1y ago
This system, OJ287, is perhaps the most important system we have for understanding what happens to supermassive black holes after a galaxy merger. This is the so-called "Last Parsec Problem." When two galaxies merge, their superm
41.
by antognini 1y ago
"If I have not seen as far as others, it is because giants have been standing on my shoulders." --Hal Abelson
42.
by antognini 1y ago
I can't speak to OpenAI's specific setup, but a lot of startups will use a third party service like Carta to manage their cap table. So there's a website, you have an account, you can log in and it tells you that you have a
43.
by antognini 1y ago
The music is notated as if there had been no detuning so that you can use the natural finger positions. (For example, a note that is notated as a C would actually sound as a B.) The trade-off is that it makes some of the intervals look wr
44.
by antognini 1y ago
The Bach Cello Suites are deservedly famous, but if you are looking to branch out to other solo cello music I recommend listening to Zoltan Kodály's Sonata for Unaccompanied Cello. After the Bach Cello Suites it is probably the most i
45.
by antognini 1y ago
> The oldest maps in the world and in Europe are oriented North at the top This isn't true, the oldest maps from the Middle Ages were oriented towards the East. (In fact the very word "orient" refers to the East.) The co
46.
by antognini 1y ago
It's nice to see this reference. I'm currently reading it and about halfway through (making my way through the chapter on Quantum Logic). The discussion of the EPR paradox and the Kochen-Specker Theorem was really very illuminati
47.
by antognini 1y ago
Planetary and moon mass black holes are ruled out by gravitational microlensing surveys. Microlensing puts an upper bound on the mass of primordial black holes at ~1/5 the mass of Ceres.
48.
by antognini 1y ago
Shameless plug, but I have a podcast about the history of astronomy and did an hour long episode on the Antikythera Mechanism a little while back if you're interested in more detail: https://songofurania.com/episode&#x2
49.
by antognini 1y ago
The condition is the former. The probability distribution spans the full dimensionality of the space. Basically, the result will hold for an infinite number of dimensions and a finite number of steps. But it will also hold if you take bo
50.
by antognini 1y ago
The behavior of a random walk in a high dimensional space can be counter-intuitive. If you take the random walk trajectory and then perform principal components analysis on it, it turns out more than half of the variance is along a single
51.
by antognini 1y ago
One thing that stands out to me about choral music is how much smoother it makes dissonance sound. Eric Whitacre is one of the most popular living composers of choral music and he routinely uses huge tone clusters in his works. When sung
52.
by antognini 1y ago
As a counterbalance to the "renegade" character of these kinds of podcasts I do recommend Sean Carroll's Mindscape podcast. He does a good job representing the "establishment" position in physics, so to speak. A go
53.
by antognini 1y ago
Based on the code in the repo it looks like they designed the chip in verilog and then ran it in a simulator. But if they have the verilog code in principle they could send it off to a fab and get real hardware back.
54.
by antognini 1y ago
There's an interesting extension of the Central Limit Theorem called the Edgeworth Series. If you have a large but finite sample, the resulting distribution will be approximately Gaussian, but will deviate from a Gaussian distribution
55.
by antognini 1y ago
> Right now I'm trying to figure out how to consistently make $1/day as a POC exercise. You can do this with the following strategy: 1. Buy $10,000 of Treasury bonds. It might be more interesting to target a particular Sharpe r
56.
by antognini 1y ago
> when the realignment caused ten days to be subtracted from the year, mobs across Europe attacked Jesuit houses to protest the time stolen from them The outrage over the implementation of the Gregorian calendar had more to do with landl
57.
by antognini 1y ago
In addition to his more substantial pieces that others have mentioned, the real turning point in his music was a very small piece called Für Alina: https://www.youtube.com/watch?v=jvXy69eF__Y Prior to this he had composed i
58.
by antognini 1y ago
If anyone is interested in getting into cocktails I really can't recommend Cocktails with Suderman enough. The early posts are free and go into the theory of how cocktails are structured and why they work. Once you start to understan
59.
by antognini 1y ago
This is a really good overview. However: > It actually needed more cycles to explain than the geocentric version of the model! This part is not true. The main advantage of Copernicus's model was that it reduced the number of epicy
60.
by antognini 1y ago
That's not exactly what is meant by luxury beliefs. Luxury beliefs aren't simply beliefs that rich people hold. It more refers to social opinions which would (allegedly) impose high costs on the poor, but from which the wealthy

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