Nothing personal, just Ciro Santilli strongly disagrees with the moderation philosophies of these users.
One particular type of user Ciro particularly dislikes are those who do more moderation than content. Ciro finds it very hard to understand why some people spend so much time moderating. Maybe that's how politicians exist, some people just like that kind of activity.
The moderators tend to have lower intermediate rep. They spend too much time moderating and too little time coding.
The Right Stuff (1983) Updated 2025-07-16
Ah, Ciro Santilli was not expecting this. What a unique mixture of humour, technology, politics and bravery. No wonder it was a box flop, there's something good about this film.
Translation group Updated 2025-07-16
This is a good and simple first example of Lie algebra to look into.
Ion trap Updated 2025-07-16
Napoleon Updated 2025-07-16
This is a tag for films that depict some sort of artificial general intelligence, but in which that is not the primary focus of the film.
Freemium Updated 2025-07-16
As usual, it is useful to think about how a bilinear form looks like in terms of vectors and matrices.
Unlike a linear form, which was a vector, because it has two inputs, the bilinear form is represented by a matrix which encodes the value for each possible pair of basis vectors.
In terms of that matrix, the form is then given by:
Reference mark Updated 2025-07-16
Ciro Santilli had to see this in a few separate places, until he underestood: that little pictur emust be a thing! Examples:
Maxwell's equations Updated 2025-07-16
Unified all previous electro-magnetism theories into one equation.
Explains the propagation of light as a wave, and matches the previously known relationship between the speed of light and electromagnetic constants.
The equations are a limit case of the more complete quantum electrodynamics, and unlike that more general theory account for the quantization of photon.
The system consists of 6 unknown functions that map 4 variables: time t and the x, y and z positions in space, to a real number:
  • , , : directions of the electric field
  • , , : directions of the magnetic field
and two known input functions:
  • : density of charges in space
  • : current vector in space. This represents the strength of moving charges in space.
Due to the conservation of charge however, those input functions have the following restriction:
Equation 1.
Charge conservation
.
Also consider the following cases:
  • if a spherical charge is moving, then this of course means that is changing with time, and at the same time that a current exists
  • in an ideal infinite cylindrical wire however, we can have constant in the wire, but there can still be a current because those charges are moving
    Such infinite cylindrical wire is of course an ideal case, but one which is a good approximation to the huge number of electrons that travel in a actual wire.
The goal of finding and is that those fields allow us to determine the force that gets applied to a charge via the Equation "Lorentz force", and then to find the force we just need to integrate over the entire body.
Finally, now that we have defined all terms involved in the Maxwell equations, let's see the equations:
Equation 2.
Gauss' law
.
Equation 3.
Gauss's law for magnetism
.
Equation 4.
Faraday's law
.
Equation 5.
Ampere's circuital law
.
You should also review the intuitive interpretation of divergence and curl.

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