Ciro Santilli @cirosantilli 37

Micro means "small wavelength compared to radio waves", not micron-sized.

Microwave production and detection is incredibly important in many modern applications:

If you are going to live, you might as well chase one of them.

You might not achieve them in your lifetime, but you never know. At some point, the pieces just "fall into place", and they happen.

And they will all come from deep tech.

Ciro Santilli would like to contribute to them. but this is a bit less realistic than software projects.

But who knows? Maybe he can code some stuff in those areas.

And one can at least have some fun by learning deeply about those subjects.

Calculus of variations is the field that searches for maxima and minima of Functionals, rather than the more elementary case of functions from $\mathbb{R}$ to $\mathbb{R}$.

Spin is one of the defining properties of elementary particles, i.e. number that describes how an elementary particle behaves, much like electric charge and mass.

Possible values are half integer numbers: 0, 1/2, 1, 3/2, and so on.

The approach shown in this section: Section "Spin comes naturally when adding relativity to quantum mechanics" shows what the spin number actually means in general. As shown there, the spin number it is a direct consequence of having the laws of nature be Lorentz invariant. Different spin numbers are just different ways in which this can be achieved as per different Representation of the Lorentz group.

Video 1. "Quantum Mechanics 9a - Photon Spin and Schrodinger's Cat I by ViaScience (2013)" explains nicely how:

Dumping examples under nodejs/sequelize/raw/many_to_many.js.

Not possible without subqueries in the standard syntax, a huge shame: stackoverflow.com/questions/1293330/how-can-i-do-an-update-statement-with-join-in-sql-server

The UPDATE + FROM extension exists in a few DBMSs:

ORM:

SMEG, cannot determine exact model.

2020-11: started sparking by itself once every 5 minutes. Knob controls dirty in hole, but can't find out how to access. Seems slightly glued insulated around edges.

£112.99

Buying October 2023 as an immediate backup phone after the Google Pixel 3a (2020) touchscreen died, and Motorola Moto G6 Play (2018) wouldn't connect to giffgaff.

Still working checks: May 2024.

github.com/minetest/minetest Written in C++, which is, a plus.

Good Minecraft clone. On Ubuntu 21.10 did:which installed 5.4.1, and it worked, except it had no sound, to an error:

And do 5 big queries instead of hundreds of smaller ones.

For example, a README.ciro document that references another document saying:needs to fetch "speed-of-light" from the ID database (previously populated e.g. by preparsing light.ciro:to decide that it should display as "Speed of light" (the title rather than the ID).

Previously, I was doing a separate fetch for each \x[] as they were needed, leading to hundreds of them at different times.

Now I refactored things so that I do very few database queries, but large ones that fetch everything during parsing. And then at render time they are all ready in cache.

This will be fundamental for the live preview on the browser, where the roundtrip to server would make it impossible

The surprising thing is that a bunch of results are simpler in complex analysis!

It allows you to do two things:

One of the key advances of the previous update was to show include headers on the table of contents.

This was to allow splitting source files freely.

While that goal was in principle achieved in that commit, when I went ahead to split the huge index of cirosantilli.com into multiple files, I notice several bugs that took a week to fix.

After all of these were solved, I finally managed to split the README at: github.com/cirosantilli/cirosantilli.github.io/commit/84c8a6e7fdbe252041accfb7a06d9b7462287131 and keep the previous desired output. You can now see that the README contains just:

This split led to a small positive modification of the output as follows. Previously, a section such as "Quantum Electrodynamics" would have been present in the monolithic README.ciro as:If you visited cirosantilli.com/quantum-electrodynamics, you would see see a link to the "nosplit" version, which would link you back to cirosantilli.com#quantum-electrodynamics, but that is not great, since this is was a humongous page with all of the README.ciro, and took long to display.

After the split, = Quantum electrodynamics is present under science.ciro, and the nosplit version is the more manageable cirosantilli.com/science#quantum-electrodynamics.

The key changes that were missing for that to happen were:

Some smart people just brought up to my attention that OurBigBook.com is a bit like: roamresearch.com/ and other graph knowledges. I feel ashemed for not having seen this software and its alternatives before. I was so focused on the "book aspect" of it that I didn't search much in there. I couldn't find an immediate project killer superset from the options in that area, but maybe one exists. We'll see.