x86 Paging Tutorial / Linux kernel usage by Ciro Santilli 37 Updated +Created
The Linux kernel makes extensive usage of the paging features of x86 to allow fast process switches with small data fragmentation.
There are also however some features that the Linux kernel might not use, either because they are only for backwards compatibility, or because the Linux devs didn't feel it was worth it yet.
Why did Facebook buy WhatsApp? by Ciro Santilli 37 Updated +Created
Obviously with the single intention of killing a competitor.
It is impossible to make money off WhatsApp as it is because of end-to-end encryption.
Facebook just clearly bought it to prevent it from actually growing further and killing facebook.
It is mindblowing that the sale wasn't cancelled due to anti trust.
The outcome of this is that WhatApp will remain with the same feature set forever, while other competitors have been growing, notably Discord and Slack.
Electronvolt by Ciro Santilli 37 Updated +Created
After the 2019 redefinition of the SI base units it is by definition exactly Joules.
History of the University of Oxford by Ciro Santilli 37 Updated +Created
Video 1.
History of Oxford University by Chris Day (2018)
Source. A large part of the video talks about how the insane system of colleges of the University of Oxford came about organically.
Oxbridge by Ciro Santilli 37 Updated +Created
Bloch sphere by Ciro Santilli 37 Updated +Created
A more concrete and easier to understand version of it is the more photon-specific Poincaré sphere, have a look at that one first.
Cirac–Zoller controlled-NOT gate by Ciro Santilli 37 Updated +Created
Elongation factor by Ciro Santilli 37 Updated +Created
SVG 1.0 by Ciro Santilli 37 Updated +Created
Superconducting qubit by Ciro Santilli 37 Updated +Created
Aegisub by Ciro Santilli 37 Updated +Created
This worked well on 3.2.2 Ubuntu 20.10. Recommended.
First import video with:
aegisub-3.2 ourbigbook-parent.mkv
They don't have an aegisub executable without the version number. Amazing.
If you already have a subtitle file that you want to edit, then just pass it on as well:
aegisub-3.2 ourbigbook-parent.mkv ourbigbook-parent.ass
Ctrl + P: play and pause video.
Ctrl + 3: set current substitle start time.
Ctrl + 4: set current substitle end time.
Enter: finish editing the current entry and start a new one.
Ribosome small subunit by Ciro Santilli 37 Updated +Created
The small one in comparison to the ribosome large subunit.
Initial public offering by Ciro Santilli 37 Updated +Created
Stanford University faculty by Ciro Santilli 37 Updated +Created
SQL transaction by Ciro Santilli 37 Updated +Created
Spontaneous emission defies causality by Ciro Santilli 37 Updated +Created
TODO understand better, mentioned e.g. at Subtle is the Lord by Abraham Pais (1982) page 20, and is something that Einstein worked on.
Pierre and Marie Curie University by Ciro Santilli 37 Updated +Created

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