Step debug the Linux kernel Updated 2025-07-16
Linux distribution buildable from source Updated 2025-07-16
As of 2020, no one knows how to build the major desktop distros fully from source into the ISO, and especially so in a reproducible build way. Everything is done in build servers somewhere with complicated layers of prebuilds. It's crap.
Package manager Updated 2025-07-16
Cross distro package manager Updated 2025-07-16
Gel electrophoresis separation of SNPs Updated 2025-07-16
- 1982 www.pnas.org/doi/pdf/10.1073/pnas.80.6.1579 DNA fragments differing by single base-pair substitutions are separated in denaturing gradient gels by Fischer and Lerman (1982). It is possible then.
Timelike-separated event Updated 2025-07-16
The opposite of spacelike-separated events.
Spacelike-separated event Updated 2025-07-16
Mathematically, we can decide if two events are timelike-separated or spacelike-separated by just looking at the sign of the spacetime interval between them.
On the light cone, these are events on the left/right part of the cone.
Different observers might not agree on the order of two spacelike-separated events.
Further discussion at Section "Light cone".
The opposite of those events are timelike-separated events.
Wave-particle duality Updated 2025-07-16
First people thought it was a particle, as per corpuscular theory of light, notably Newton supported the corpuscular theory of light.
But then evidence of the diffraction of light start to become unbearably strong, culminating in the Arago spot.
And finally it was understood from Maxwell's equations that light is a form of electromagnetic radiation, as its speed was perfectly predicted by the theory.
But then evidence of particle nature started to surface once again with the photoelectric effect. Physicists must have been driven mad by all these changes.
Light source Updated 2025-07-16
Optical fiber Updated 2025-07-16
Fiber optics fundamentals by Shaoul Ezekiel
. Source. 2008 at MIT. Theory and demonstration.- youtu.be/0DCrIAxEv_Y?t=560:Terefore, the 1.5 micrometer window truly is the minimum.
- on smaller wavelengths, loss is due to Rayleigh scattering
- on longer wavelengths, loss is due to material absorption
Photometer Updated 2025-07-16
Spectroscopy Updated 2025-07-16
Speed of light Updated 2025-07-16
Electromagnetic spectrum Updated 2025-07-16
libgit2/rugged Updated 2025-07-16
Fraunhofer diffraction Updated 2025-07-16
Far field approximation to Kirchhoff's diffraction formula, i.e. when the plane of observation is far from the object diffracting.
Fresnel diffraction Updated 2025-07-16
Near field approximation to Kirchhoff's diffraction formula, i.e. when the plane of observation is near the object diffracting.
Classification of k-transitive groups Updated 2025-07-16
MacKenzie Bezos Updated 2025-07-16
Her neck is huge! She also redid her teeth at some point apparently. Some good photos at: www.irishtimes.com/life-and-style/people/mackenzie-scott-how-the-former-mrs-bezos-became-a-philanthropist-like-no-other-1.4850049
Babel (transcompiler) Updated 2025-07-16
There are unlisted articles, also show them or only show them.