Rigid body dynamics simulator Updated +Created
Ripples by ripples Updated +Created
A Baidu Baike page: baike.baidu.hk/item/層層水瀾/12386243 mentions that the score was published in 1970 by Tao Yimo (陶一陌) in a eponymous score book.
Video 1.
Ripples by ripples performed by Wu Li on the guzheng
. Source. Peformer's Chinese name: 吳莉.
River Cam Updated +Created
Asterism (astronomy) Updated +Created
Copley Medal Updated +Created
royalsociety.org/grants-schemes-awards/awards/copley-medal/ says it is now open to international citizens, but having a quick look at the 2010 awards still suggests that it is very British centric, or at least anglophone centric, much like the society fellowship itself. That's likely the reason why the Nobel prize won, being much more international from the start.
Coral of life Updated +Created
Figure 1.
Coral of life by János Podani (2019)
Source. Fantastic work!!! Some cool things we can easily see:
Hertz Updated +Created
Named after radio pioneer Heinrich Hertz.
JCVI-syn3A Updated +Created
essential metabolism for a minimal cell (2019) mentions:
JCVI-syn3A, a robust minimal cell with a 543 kbp genome and 493 genes, provides a versatile platform to study the basics of life.
Based on JCVI-syn3.0, they've added a few genes back to give better phenotypes, including slightly faster duplication time. Because the development cycle time is your God is also true in biology.
As of essential metabolism for a minimal cell (2019) it had only 91 genes of unknown function! So funny.
Bibliograpy:
Figure 1.
JCVI-syn3A during cell division by David Goodsell (2022)
Source. A description is present at: cdn.rcsb.org/pdb101/goodsell/2022_JCVI-syn3A.pdf Integrative Illustration of a JCVI-syn3A Minimal Cell by David Goodsell (2022) which describes everything in the picture.
Jeremy Sturdivant Updated +Created
en.bitcoin.it/wiki/Jercos mentions:
According to jercos the transaction was finalized over IRC chats. Jercos was 18 at the time of the transaction.
www.bitcoinwhoswho.com/jercosinterview is the source. Persumably the contact was initiated via the private messaging feature of the Bitcoin Forum.
Receptor (biochemistry) Updated +Created
Semiconductor diode Updated +Created
Figure 1.
I-V curve of a diode
. Source. This image shows well how the diode is only an approximation of the ideal one way device. Notably, there is this non-ideal voltage drop across the device, which can be modelled as constant. It is however an exponential in fact.
Video 1.
Diodes Explained by The Engineering Mindset (2020)
Source. Good video:
Ciro's Edict #7 / Next steps Updated +Created
Improve article editing which is very buggy and inconvenient!
I'll also look into some more likely easy but very important topic improvements:
Ciro's Edict #7 / Not work Updated +Created
Ampere Updated +Created
Coursera Updated +Created
Some courses at least allow you to see material for free, e.g.: www.coursera.org/learn/quantum-optics-single-photon/lecture/UYjLu/1-1-canonical-quantization. Lots of video focus as usual for MOOCs.
It is extremely hard to find the course materials without enrolling, even if enrolling for free! By trying to make money, they make their website shit.
The comment section does have a lot of activity: www.coursera.org/learn/statistical-mechanics/discussions/weeks/2! Nice. And works like a proper issue tracker. But it is also very hidden.
Covering space Updated +Created
Basically it is a larger space such that there exists a surjection from the large space onto the smaller space, while still being compatible with the topology of the small space.
We can characterize the cover by how injective the function is. E.g. if two elements of the large space map to each element of the small space, then we have a double cover and so on.
C (programming language) Updated +Created
It gets the job done, but cannot make a large codebase DRY without insanity.
As of 2020, C is like Latin, and we are in the Middle Ages, where it has become a lingua franca.
It is interesting to note how late C appeared: 1972, compared e.g. to Fortran which is from 1957. This is basically because C was a "systems programming language", i.e. with focus on pointer manipulation, and because early computers were so weak, there was no operating system or many software layers in the early days. Fortran however was a numerical language, and it ran directly on bare metal, an application that existed before systems programming.
Examples under c.
Fock space Updated +Created
Yup, this one Focks you up.
Video 1.
What's a Fock space? by Physics Duck (2023)
Source.

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