Ciro Santilli @cirosantilli 37

Ciro Santilli was touched by this, and then watched several other documentaries by Curtis.

Part of Ciro asks if it is all a big conspiracy theory. But it feels and sounds so right.

Notably the part of the governments have lost all power to companies, and can't do anything meaningful anymore to actually represent the people, because globalization reduces the power of governments.

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Capital flight Updated 2025-07-16

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Carl Zeiss AG Updated 2025-07-16

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Video 1.

Carl Zeiss, Explained by Asianometry (2021)

Source.

Video 2.

How Carl Zeiss Crafts Optics for a $150 Million EUV Machine

. Source. Difficulty: light at those frequencies get absorbed by lenses. So you have to use mirrors instead.

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Caroline Ellison Updated 2025-07-16

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Some analysts seem to suggest that the things she said were bad.

But they're not.

They're a rare example of someone with some power saying cool honest stuff that comes across their mind.

Unlike the endless mandatory corporate bullshit we usually get otherwise.

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Cataclysm DDA build from source on Ubuntu 21.10 Updated 2025-07-16

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sudo apt build-dep cataclysm-dda-curses cataclysm-dda-data cataclysm-dda-data
git clone https://github.com/CleverRaven/Cataclysm-DDA
cd Cataclysm-DDA
git checkout cdda-experimental-2022-01-27-0622
mkdir build
cd build
cmake -DCMAKE_BUILD_TYPE=Release -DTILES=ON -DSOUND=ON -DLOCALIZE=OFF ..
make -j`nproc`

fails with:

:part_index_’ may be used uninitialized [-Werror=maybe-uninitialized]
   55 |             return part_index_;

as reported at: github.com/CleverRaven/Cataclysm-DDA/issues/52657 now open for 3 months. Basically every commit I tried fails with a different -Werror check, they don't test GCC new enough regularly.

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Cataclysm DDA save scum Updated 2025-07-16

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Tested as of Cataclysm: Dark Days Ahead 0.E-3-1, seems possible built-in:

Disable autosave on settings
Quisave (Esc + 9)
To restore the save, just close the game window directly before clicking Yes or No on the "Watch the last moments of your life" dialog.

A less risky save scum can be achieved with rsync:

rsync -av ~/.local/share/cataclysm-dda/save/ ~/.local/share/cataclysm-dda/save.bak/

and after you die:

rsync -av ~/.local/share/cataclysm-dda/save.bak/ ~/.local/share/cataclysm-dda/save/

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Cavity magnetron Updated 2025-07-16

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Apparently, DC current comes in, and microwaves come out.

TODO: sample power efficiently of this conversion and output spectrum of this conversion on some cheap device we can buy today.

Video 1.

Magnetron, How does it work? by Lesics (2020)

Source.

Video 2.

Device that Won WW2 by Curious Droid

. Source.

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Cayley graph Updated 2025-07-16

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You select a generating set of a group, and then you name every node with them, and you specify:

each node by a product of generators
each edge by what happens when you apply a generator to each element

Not unique: different generating sets lead to different graphs, see e.g. two possible en.wikipedia.org/w/index.php?title=Cayley_graph&oldid=1028775401#Examples for the

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Charge conservation Updated 2025-07-16

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Charitable organization Updated 2025-07-16

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Charles Simon Updated 2025-07-16

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Basically it looks like the dude got enough money after selling some companies, and now he's doing cooler stuff without much need of money. Not bad.

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Chart Updated 2025-07-16

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Chemical bond Updated 2025-07-16

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Chemical company Updated 2025-07-16

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Chemical compound Updated 2025-07-16

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The definition does not include homonuclear molecules which is a pain.

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Chengyu Updated 2025-07-16

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Chess UI Updated 2025-07-16

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A Chess UI is a program that interfaces with a chess engine in order using a computer chess interface to allow human players to interact conveniently with the engine.

Bibliography:

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Chevalley groups

A_{n} (q)

Updated 2025-07-16

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They are the finite projective special linear groups.

This was the first infinite family of simple groups discovered after the simple cyclic groups and alternating groups. The first case discovered was

PS L (2, p)

by Galois. You should understand that one first.

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Children cartoons Ciro Santilli liked to watch Updated 2025-07-16

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These did not stand the test of time however.

When Ciro was ten years old, he was addicted to 2 cartoons: Pokemon and Dragon Ball Z!

Pokemon had just launched in Brazil in 1999, 2 years after the Japanese launch: br.historyplay.tv/hoje-na-historia/comeca-exibicao-original-do-anime-pokemon (archive) And Dragon Ball, was first aired in 1989 in Japan! My God, those translations took forever back then!

And everyone was playing Pokemon on their Game Boy Color. Ciro was already cheap however, and didn't buy the console despite wanting it, and just played it through his friends handhelds. But maybe this is a good thing. Playing alone sucks.

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