Cataclysm DDA save scum Updated 2025-07-16
Categorical quantum mechanics Updated 2025-07-16
Catholic Saint Updated 2025-07-16
cat-v.org Updated 2025-07-16
cat-v.org/ by Rob Pike, co-creator of Go, looong time Unixer, and some kind of leader of a 9p resurrection cult. That one's spicy. E.g.: harmful.cat-v.org/, Ciro's version: good and evil.
Cauchy boundary condition Updated 2025-07-16
Sets both a Dirichlet boundary condition and a Neumann boundary condition for a single part of the boundary.
Can be used for hyperbolic partial differential equations.
We understand intuitively that this imposes stricter requirements on solutions, which makes it easier to guarantee uniqueness, but also harder to have existence. TODO intuitively why hyperbolic need this extra level of restriction.
Cauchy's functional equation Updated 2025-07-16
Nice result on Lebesgue measurable required for uniqueness.
Causality in quantum mechanics Updated 2025-07-16
In simple terms, if you believe in the Schrödinger equation and its modern probabilistic interpretation as described in the Schrödinger picture, then at first it seem that there is no strict causality to the outcome of experiments.
People have then tried to recover that by assuming that there is some inner sate beyond the Schrödinger equation, but these ideas are refuted by Bell test experiments, unless we give up the principle of locality, which feels more important, especially in special relativity, where faster-than-light implies time travel, which breaks causality even more dramatically.
Cavendish Laboratory Updated 2025-07-16
Cavity magnetron Updated 2025-07-16
Apparently, DC current comes in, and microwaves come out.
TODO: sample power efficiently of this conversion and output spectrum of this conversion on some cheap device we can buy today.
Device that Won WW2 by Curious Droid
. Source. Cayley-Dickson construction Updated 2025-07-16
Constructs the quaternions from complex numbers, octonions from quaternions, and keeps doubling like this indefinitely.
Cayley graph Updated 2025-07-16
Not unique: different generating sets lead to different graphs, see e.g. two possible en.wikipedia.org/w/index.php?title=Cayley_graph&oldid=1028775401#Examples for the
CC BY-NC-ND 4.0 Updated 2025-07-16
CC BY-NC-SA Updated 2025-07-16
Too restrictive. People should be able to make money from stuff.
The definition of "commercial" could also be taken in extremely broad senses, making serious reuse risky in many applications.
Notably, many university courses use it, notably MIT OpenCourseWare. Ciro wonders if it is because academics are wary of industry, or if they want to make money from it themselves. This reminds Ciro of a documentary he watched about the origins of one an early web browsers in some American university. And then that university wanted to retain copyright to make money from it. But the PhDs made a separate company nonetheless. And someone from the company rightly said something along the lines of:TODO source.
The goal of universities is to help create companies and to give back to society like that. Not to try and make money from inventions.
The GNU project does not like it either www.gnu.org/licenses/license-list.en.html#CC-BY-NC:
en.wikipedia.org/wiki/Creative_Commons_NonCommercial_license#Defining_%22Noncommercial%22 also talks about the obvious confusion this generates: nobody can agree what counts as commercial or not!
In September 2009 Creative Commons published a report titled, "Defining 'Noncommercial'". The report featured survey data, analysis, and expert opinions on what "noncommercial" means, how it applied to contemporary media, and how people who share media interpret the term. The report found that in some aspects there was public agreement on the meaning of "noncommercial", but for other aspects, there is wide variation in expectation of what the term means.
CCFv3 Updated 2025-07-16
CEA Paris-Saclay Updated 2025-07-16
Centerpiece of the CEA since the beginning of the French nuclear weapons program, headquarters since 2006.
C. elegans models and databases Updated 2025-07-16
C. elegans nervous system Updated 2025-07-16
Interview with John White by MRC Laboratory of Molecular Biology (2023)
. Source. Celestial AI Updated 2025-09-09
Cell division Updated 2025-07-16
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