Lorentz boost Updated 2025-07-16
Two observers travel at fixed speed relative to each other. They synchronize origins at x=0 and t=0, and their spacial axes are perfectly aligned. This is a subset of the Lorentz group. TODO confirm it does not form a subgroup however.
Physics from Symmetry by Jakob Schwichtenberg (2015) page 66 shows one in terms of 4x4 complex matrices.
More importantly though, are the representations of the Lie algebra of the Lorentz group, which are generally also just also called "Representation of the Lorentz group" since you can reach the representation from the algebra via the exponential map.
LLVM Intermediate Representation Updated 2025-07-16
Very hot stuff! It's like ISA-portable assembly, but with types! In particular it also it deals with calling conventions for us (since it is ISA-portable). TODO: isn't that exactly what C does? :-) LLVM IR vs C
Ciro Santilli hates it when an expert does this!!!
If you estimate that the audience won't know the name of the concept, that's fine, do explain it as well.
But you must also give the name!!!
This also manifests itself when news outlets omit foreign names from headlines, notably Chinese, but likely happens to all non-european languages too.
Kaon Updated 2025-07-16
One strange quark bound with one up quark or a down quark. 6 combinations exist, 4 if we consider antiparticles the same as particles.
Micrometer Updated 2025-07-16
Angstrom Updated 2025-07-16
Mind blown Updated 2025-07-16
Video 1.
The Universe I, II & III | Tim and Eric Awesome Show by Adult Swim UK (2017)
Source. This amazing video contains the best mind blown meme ever, Ciro Santilli almost shat himself when he first watched it.
Renormalization Updated 2025-07-16
Video 1.
The Biggest Ideas in the Universe | 11. Renormalization by Sean Carroll (2020)
Source. Gives a very quick and high level overview of renormalization. It is not enough to satisfy Ciro Santilli as usual for other Sean Carroll videos, but it goes some way.
Gauge theory Updated 2025-07-16
The term and idea was first introduced initialized by Hermann Weyl when he was working on combining electromagnetism and general relativity to formulate Maxwell's equations in curved spacetime in 1918 and published as Gravity and electricity by Hermann Weyl (1918). Based on perception that symmetry implies charge conservation. The same idea was later adapted for quantum electrodynamics, a context in which is has even more impact.
Heisenberg picture Updated 2025-07-16
Basically the same as matrix mechanics it seems, just a bit more generalized.
nRF51 series Updated 2025-07-16
Pandoc Updated 2025-07-16
This is good software.
If it only it were written in JavaScript instead of Haskell (!?), then Ciro might have used it as the basis for OurBigBook Markup.
Fructose Updated 2025-07-16

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