Extinct and extant Updated +Created
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Derivation of the Dirac equation Updated +Created
The Dirac equation can be derived basically "directly" from the Representation theory of the Lorentz group for the spin half representation, this is shown for example at Physics from Symmetry by Jakob Schwichtenberg (2015) 6.3 "Dirac Equation".
The Diract equation is the spacetime symmetry part of the quantum electrodynamics Lagrangian, i.e. is describes how spin half particles behave without interactions. The full quantum electrodynamics Lagrangian can then be reached by adding the internal symmetry.
As mentioned at spin comes naturally when adding relativity to quantum mechanics, this same method allows us to analogously derive the equations for other spin numbers.
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Dragon Ball Z Updated +Created
Although this was one of the children cartoons Ciro Santilli liked to watch, watching Dragon Ball Z as an adult feels like watching paint dry, everything takes forever! Apparently padding to sync with the manga: www.quora.com/Why-does-DBZ-drag-on-for-so-long The original Dragon Ball was likely strictly better, as it was much more fun and took itself less seriously. Also in DBZ power level inflation is taken to ridiculous levels. This is why One-Punch Man is good. Out of all evil characters, Frieza is one that made a big impression on Ciro, his graphical design is so good.
Josephson effect Updated +Created
Discrete quantum effect observed in superconductors with a small insulating layer, a device known as a Josephson junction.
To understand the behaviour effect, it is important to look at the Josephson equations consider the following Josephson effect regimes separately:
A good summary from Wikipedia by physicist Andrew Whitaker:
at a junction of two superconductors, a current will flow even if there is no drop in voltage; that when there is a voltage drop, the current should oscillate at a frequency related to the drop in voltage; and that there is a dependence on any magnetic field
Bibliography:
Concurrent programming course of the University of Oxford Updated +Created
Virgo cluster Updated +Created
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Fridge Updated +Created
Brand according to documents: SMEG.
Most similar models I an find: www.smeguk.com/products/UKC8173N1F and www.smeguk.com/products/UKC81721F, the keyword are "built-in" and "integrated", other very similar ones: www.smeguk.com/refrigerators/built-in
Looks like this: www.youtube.com/watch?v=4c_LBVnU4ec and that's how to unclog the drain.
2020-11-28: defrost. Some small Styrofoam was broken lose from top, noticed small burn or rust marks on top grid nearby.
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Cloud computing Updated +Created

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