Immune response Updated 2025-07-16
Inflammation Updated 2025-07-16
Lie bracket of the rotation group Updated 2025-07-16
LLVM Updated 2025-07-16
Magnetic flux quantum Updated 2025-07-16
TODO is there any relationship between this and the Josephson effect?
Experimental observation published as Experimental Evidence for Quantized Flux in Superconducting Cylinders.
This appears to happen to any superconducting loop, because the superconducting wave function has to be continuous.
Video "Superconducting Qubit by NTT SCL (2015)" suggests that anything in between gets cancelled out by a superposition of current in both directions.
Oxford Gossip (website) Updated 2025-07-16
TODO confirm URL: oxfordgossip.co.uk ? An archive from 2005 when it was hottest: web.archive.org/web/20051204033916/http://www.oxfordgossip.co.uk/new/
TODO spiciest posts ever?
PHP Updated 2025-07-16
Quantum Information course of the University of Oxford Updated 2025-07-16
2023: Jonathan Barrett
Stack Overflow link-only answer policy Updated 2025-07-16
The link will break, and the answer will lose. Or the person who summarizes inline will get more upvotes because people are lazy to click the link. Also, web archiving exists.
This is especially idiotic when it is a link to another post in Stack Overflow itself.
Classification of simple Lie groups Updated 2025-07-16
A bit like the classification of simple finite groups, they also have a few sporadic groups! Not as spectacular since as usual continuous problems are simpler than discrete ones, but still, not bad.
ORF1ab Updated 2025-07-16
Pangaea Updated 2025-07-16
Peripheral Updated 2025-07-16
Polarization of light Updated 2025-07-16
This section discusses the pre-photon understanding of the polarization of light. For the photon one see: photon polarization.
People were a bit confused when experiments started to show that light might be polarized. How could a wave that propages through a 3D homgenous material like luminiferous aether have polarization?? Light would presumably be understood to be analogous to a sound wave in 3D medium, which cannot have polarization. This was before Maxwell's equations, in the early 19th century, so there was no way to know.
Province of China Updated 2025-07-16
Udacity Updated 2025-07-16
It is a shame that they refocused to more applied courses. This also highlights their highly "managed" approach to content creation. Their 2022 pitch on front page says it all:they are focused on the highly paid character of many software engineering jobs.
for as few as 10 hours a week, you can get the in-demand skills you need to help land a high-paying tech job
But one cool point of this website is how they hire tutors to help on the courses. This is a very good thing. It is a fair way of monetizing: e-learning websites must keep content free, only charge for certification.
x86 Paging Tutorial TLB replacement policy Updated 2025-07-16
When TLB is filled up, older addresses are overwritten. Just like CPU cache, the replacement policy is a potentially complex operation, but a simple and reasonable heuristic is to remove the least recently used entry (LRU).
With LRU, starting from state:adding
valid linear physical
----- ------ --------
> 1 00003 00005
1 00007 00009
1 00009 00001
1 0000B 000030000D -> 0000A would give: valid linear physical
----- ------ --------
1 0000D 0000A
> 1 00007 00009
1 00009 00001
1 0000B 00003 Allegory Updated 2025-07-16
Internet privacy organizations Updated 2025-07-16
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