Examples:
Symmetric bilinear map by Ciro Santilli 40 Updated 2025-07-16
Subcase of symmetric multilinear map:
Requires the two inputs and to be in the same vector space of course.
The most important example is the dot product, which is also a positive definite symmetric bilinear form.
BioCyc by Ciro Santilli 40 Updated 2025-07-16
Some things that they have of interest which may not be on NCBI:
Hits a free login wall after a few IP hits. And just a very normal casually browsing number of hits. What is this bullshit?
Bohr model by Ciro Santilli 40 Updated 2025-07-16
Was the first model to explain the Balmer series, notably linking atomic spectra to the Planck constant and therefore to other initial quantum mechanical observations.
This was one of the first major models that just said:
I give up, I can't tie this to classical physics in any way, let's just roll with it, OK?
It still treats electrons as little points spinning around the nucleus, but it makes the non-classical postulate that only certain angular momentums (and therefore energies) are allowed.
The channel is also notable for the fact that the author makes his own music.
Video 1.
Behind the Scenes by Sci-Inspi (2020)
Source. His name is Manuael, aka Manu, and he is the chemistry lab technician at a community college.
Pseudometric space by Ciro Santilli 40 Updated 2025-07-16
Metric space but where the distance between two distinct points can be zero.
Notable example: Minkowski space.
Magarena by Ciro Santilli 40 Updated 2025-07-16
Open source MtG engine implementation written in Java.
Seems to have an option to download art from internet as well.
Ciro Santilli wonders how legal it is. They very explicitly do not mention the words Magic: The Gathering anywhere.
Their UI does a good job at being self explanatory. Space is the shortcut to skip phases.
No online play.
TODO it appears to parse card functionality out of the human readable text! That's genius, as it helps automatically get new cards working, and squirt around legal issues.

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