SoundFont by Ciro Santilli 35 Updated +Created
Contains instructions on how to synthesize MIDI.
Extension: sf2.
Can be imported for example by:
Microsoft employee by Ciro Santilli 35 Updated +Created
Metallurgy by Ciro Santilli 35 Updated +Created
CIDARLAB/cello by Ciro Santilli 35 Updated +Created
Design software for synthetic biological circuit.
The input is in Verilog! Overkill?
Then it essentially maps to a standard cell library of biological primitives!
CommonMark by Ciro Santilli 35 Updated +Created
CommonMark is a good project. But its initial release method was not very nice, they first developed everything behind closed doors with the big adopters like GitHub and Stack Overflow, and only later released the thing read, thus wasting the time of people who were working on alternative in the meanwhile, e.g. github.com/karlcow/markdown-testsuite which Ciro contributed to: Ciro Santilli's minor projects.
Josephson constant by Ciro Santilli 35 Updated +Created
Superconducting magnet by Ciro Santilli 35 Updated +Created
Applications: produce high magnetic fields for
As of the early 2020s, superconducting magnets predominantly use low temperature superconductors Nb-Ti and Nb-Sn, see also most important superconductor materials, but there were efforts underway to create practical high-temperature superconductor-based magnets as well: Section "High temperature superconductor superconducting magnet".
Wikipedia has done well for once:
The current to the coil windings is provided by a high current, very low voltage DC power supply, since in steady state the only voltage across the magnet is due to the resistance of the feeder wires. Any change to the current through the magnet must be done very slowly, first because electrically the magnet is a large inductor and an abrupt current change will result in a large voltage spike across the windings, and more importantly because fast changes in current can cause eddy currents and mechanical stresses in the windings that can precipitate a quench (see below). So the power supply is usually microprocessor-controlled, programmed to accomplish current changes gradually, in gentle ramps. It usually takes several minutes to energize or de-energize a laboratory-sized magnet.
Time dilation by Ciro Santilli 35 Updated +Created
One of the best ways to think about it is the transversal time dilation thought experiment.
Truth table by Ciro Santilli 35 Updated +Created
Siemens by Ciro Santilli 35 Updated +Created
Aminoacyl tRNA synthetase by Ciro Santilli 35 Updated +Created
Binds an amino acid to the correct corresponding tRNA sequence. Wikipedia mentions that humans have 20 of them, one for each proteinogenic amino acid.
Bash (Unix shell) by Ciro Santilli 35 Updated +Created
The more heavily a project relies on it, the more you start to regret it.
Go (programming language) by Ciro Santilli 35 Updated +Created
Likely a good replacement for Python. If the ecosystem gets there, Ciro Santilli would gladly use it more.
Python (programming language) by Ciro Santilli 35 Updated +Created
Examples under python.
Ciro Santilli's wife was studying a bit of basic Python for some job interviews, when she noticed:
Wow, in is so powerful! You can do for x in list, for x in dict and if x in dict all with that single word!
Damn right, girl, damn right.
Ciro remembers hearing about Python online briefly. It seemed like a distant thing from the Java/C dominated (and outdated) university courses. Then some teaching assistant mentioned during some course when Ciro was at École Polytechnique that Python was a great integration tool. That sounded cool.
Then finally, when the École Polytechnique mathematics department didn't let Ciro Santilli do his internship of choice due to grades and Ciro was at an useless last moment backup internship, he learned more Python instead of doing his internship job, and was hooked.
Fat Man by Ciro Santilli 35 Updated +Created
plutonium-based.
Its plutonium was produced at Hanford site.
PowerPC by Ciro Santilli 35 Updated +Created
Google Maps by Ciro Santilli 35 Updated +Created
Owned/developed by Google as of 2020.
Early on jumpstarted from several acquisitions, notably Keyhole Inc. and Where 2 Technologies.
Mt. Gox by Ciro Santilli 35 Updated +Created
The first Bitcoin exchange. Coded as a hack, and they didn't manage to fix the hacks as the site evolved in a major way, which led to massive hacks.
Their creation is clearly visible on the archive history of bitcoin.org: web.archive.org/web/20100701000000*/bitcoin.org which started having massively more archives since Mt. Gox opened.
Video 1.
One Mistake Brought Down This FBI Most Wanted Hacker by Crumb (2023)
Source. Good overview of Mt. Gox.
One parameter subgroup by Ciro Santilli 35 Updated +Created
The one parameter subgroup of a Lie group for a given element of its Lie algebra is a subgroup of given by:
Intuitively, is a direction, and is how far we move along a given direction. This intuition is especially vivid in for example in the case of the Lie algebra of , the rotation group.
One parameter subgroups can be seen as the continuous analogue to the cycle of an element of a group.

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