Baryon Updated +Created
composite particle made up of an odd number of elementary particles.
The most important examples by far are the proton and the neutron.
A blog in every web framework Updated +Created
A (multi-user) blog is the hello world of the web, so creating one of those is the best way to quickly evaluate web technology, i.e. time to Hello World.
Some new frameworks like FeathersJS are making a chat app instead, as that highlights the push notifications a bit better.
TodoMVC Updated +Created
Front-end only, so infinitely simpler, and generally much less useful than gothinkster/realworld.
Gluon Updated +Created
Force carrier of quantum chromodynamics, like the photon is the force carrier of quantum electrodynamics.
One big difference is that it carrier itself color charge.
Proton decay Updated +Created
Strong interaction Updated +Created
Color charge Updated +Created
Color confinement Updated +Created
Can be thought as being produced from gluon-gluon lines of the Feynman diagrams of quantum chromodynamics. This is in contrast to quantum electrodynamics, in which there are no photon-photon vertices, because the photon does not have charge unlike gluons.
This phenomena makes the strong force be very very different from electromagnetism.
Matters of small concern should be treated seriously Updated +Created
As quoted on Ghost Dog: The Way of the Samurai (1999) at 00:23:01:
Among the maxims on Lord Naoshige's wall there was this one: "Matters of great concern should be treated lightly." Master Ittei commented, "Matters of small concern should be treated seriously."
TODO find exact page/section.
Eton College Updated +Created
Boston Updated +Created
Raised and lowered indices Updated +Created
TODO what is the point of them? Why not just sum over every index that appears twice, regardless of where it is, as mentioned at: www.maths.cam.ac.uk/postgrad/part-iii/files/misc/index-notation.pdf.
Vectors with the index on top such as are the "regular vectors", they are called covariant vectors.
Those in indices on bottom are called contravariant vectors.
It is possible to change between them by Raising and lowering indices.
The values are different only when the metric signature matrix is different from the identity matrix.
Rifleman's Creed Updated +Created
Video 1.
Rifleman's Creed from Full Metal Jacket
. Source. This is possibly where Ciro Santilli first came about this. But not sure, it was too long ago during good old University of São Paulo days.
The Pentagon Updated +Created
DARPA Updated +Created
Reduced Planck constant Updated +Created
Appears in the Schrödinger equation.
Equals the quantum of angular momentum in the Bohr model.
Hawaii Updated +Created
Illinois Updated +Created
San Francisco Bay Updated +Created

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