Faculty of Khan Updated +Created
This is quite in-depth, pretty good.
Unrelated to the Khan Academy.
Fax Updated +Created
Uses telephone lines, and therefore were still usable much much after the Internet made them obsolete, which is quite funny.
Video 1.
Teletype ASR 33 Part 10: ASR 33 demo by CuriousMarc (2020)
Source.
Video 2.
Fax Machine by Museum of Obsolte Objects (2011)
Source.
ExplainingComputers Updated +Created
It is hard to say if this channel is good because of the awesome information, or if because of the absolute cutness of that British presenter. Maybe it is both.
Experimental verification of the Maxwell-Boltzmann distribution Updated +Created
Most applications of the Maxwell-Boltzmann distribution confirm the theory, but don't give a very direct proof of its curve.
Here we will try to gather some that do.
Maxwell's equations are Lorentz invariant Updated +Created
Subtle is the Lord by Abraham Pais (1982) chapter III "Relativity, the special theory" mentions that this fact and its importance (we want the laws of physics to look the same on all inertial frames, AKA Lorentz covariance) was first fully relized by poincaré in 1905.
And at that same time poincaré also immediately started to think about the other fundamental force then known: gravity, and off the bat realized that gravitational waves must exist. general relativities is probably just "the simplest way to make gravity Lorentz covariant".
csvkit Updated +Created
Lots of features, but slow because written in Python. A faster version may be csvtools. Also some annoyances like obtuse header handing and missing features like grep + cut in one go: csvgrep and select column in csvkit.
Fe-C Updated +Created
An alloy of iron and carbon. Because such allys have had such incredible historical importance due to their different properties, different phases of Fe-C have well known names such as steel
Why is COVID-19 so serious in some people but not in others? Updated +Created
There are a few possibilities:
Star Trek: The Next Generation Updated +Created
Ciro Santilli likes this.
He doesn't have the patience to actually watch full episodes with rare exceptions, rather just watching selected scenes from: www.youtube.com/channel/UCdeIGY2DIjpGf0A2m9GSE3g, but still, it is interesting.
What appeals to Ciro in this series is how almost nothing is solved by violence, almost everything is decided in the bridge, at the "cerebral" level of the command structure. This reminds Ciro of a courtroom of law sometimes.
Maybe there's also a bit of 90's nostalgia involved too though, as this is something that would show on some random cable channels a bored young Ciro would have browsed during weekends, never really watching full episodes.
One crime of many episodes is being completely based on some stupid new scientific concept, which any character to back it up.
Another thing that hurt is that due to their obsession with the senior members of the crew, sometimes those senior members are sent in ridiculously risky operations, which is very unrealistic.
Episodes that Ciro watched fully and didn't regret:
Semi worth it:
Not worth it:
  • Cause and effect
TODO
  • s06e11 Chain of command
Fick's laws of diffusion Updated +Created
Filter (signal processing) Updated +Created
Why is COVID-19 more serious than the flu? Updated +Created
csvtool Updated +Created
A compiled executable under /usr/bin/csvtool, has an Ubuntu 23.04 package: manpages.ubuntu.com/manpages/lunar/en/man1/csvtool.1.html
There seems to be no sane filtering mechanism however: stackoverflow.com/questions/46540752/using-csvtool-call-to-filter-csv-in-bash
Black Hat Briefings Updated +Created
Positive definite matrix Updated +Created
The dot product is a positive definite matrix, and so we see that those will have an important link to familiar geometry.
Intermediate filaments Updated +Created
Homeobox gene Updated +Created
Pythagorean triple Updated +Created

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