When it distributes it inverts the order of the matrix multiplication:
Enthalpy by Ciro Santilli 37 Updated 2025-07-16
Adds up chemical energy and kinetic energy.
Wikipedia mentions however that the kinetic energy is often negligible, even for gases.
The sum is of interest when thinking about reactions because chemical reactions can change the number of molecules involved, and therefore the pressure.
To predict if a reaction is spontaneous or not, negative enthalpy is not enough, we must also consider entropy via Gibbs free energy.
Caetano Veloso by Ciro Santilli 37 Updated 2025-07-16
Within the The Holy Trinity of popular Brazilian music, Caetano has the most New Age religious feel to him. He is also perhaps the most varied of the trinity however, also covering heavier topics at times.
Figure 1.
Caetano Veloso in the 60s
. Source.
Video 1.
Phone Intercom by Make (2014)
Source. This video illustrates will the incredible simplicity of the connection of a telephone system. Compare that to the relative complexity of wireless communication, which requires modulation.
Video 2.
Making a Microphone Work with an Oscilloscope by Environmental Radiation LLC (2012)
Source. Not the most detailed setup, but good.
Hermitian form by Ciro Santilli 37 Updated 2025-07-16
The prototypical example of it is the complex dot product.
Note that this form is neither strictly symmetric, it satisfies:
where the over bar indicates the complex conjugate, nor is it linear for complex scalar multiplication on the second argument.
As of 2020, basically means "liquid nitrogen temperature", which is much cheaper than liquid helium.
Figure 1.
Timeline of superconductivity from 1900 to 2015
. Source.
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.

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