In many important applications, what you have to solve is not just a single partial differential equation, but multiple partial differential equations coupled to each other. This is the case for many key PDEs including:
Sketch of the typical superconducting phase diagram of a Type-II superconductor
. Source. Bought May 2024 to be my clean crypto-only computer. Searched for cheapest 1 TB disk 16 GB RAM not too old on Amazon with Ubuntu certification, and that was it at £479.00.
Some reviews:
- the keyboard is kind of crap. Notably the key "a" is very hard to press!!
- the lack of a sleep state indication LED and "I'm powering on LED" compared to Lenovo is really sad
- it gets way too hot doing work (Monero bootstrap) with lid closed, likely brought system down
OPSEC: will run only cryptocurrency wallets and nothing else. Will connect to Internet, but never ever to a non clean USB flash drive.
The OPSEC for this machine supposes:
- no supply of chain attack on USB hardware, Laptop hardware, pre-installed Windows and Ubuntu ISO
- connecting with browser to a few well known websites to download stuff (Ubuntu ISO, Monero software) is safe
Bootstrap OPSEC:It must have taken about one week running full time to sync the Monero blockchain which at the time was at about 3.1M blocks! I checked on system explorer, and CPU and internet usage was never maxed out, suggesting simply slow network. But the computer still overheated quite a bit and froze a few times.
- turn on from factory, start Windows 11 Home 23H2 build 22631.2715, connect to home Wifi during setup process. Considered skipping WiFi, but I'll want to download the Ubuntu ISO later on anyways answers.microsoft.com/en-us/windows/forum/all/bypass-lets-connect-you-to-a-network/2ce188f6-1b28-45a0-97d2-bfccfa3c9188. Don't sign in to online Windows account, and turn off all spyware requests.
- on preinstalled Edge browser, download Ubuntu 24.04 ISO from ubuntu.com, check sha256 with
Get-FileHashon powershell even though that is pointless security.stackexchange.com/questions/1687/does-hashing-a-file-from-an-unsigned-website-give-a-false-sense-of-security, download balenaEtcher portable from etcher.balena.io/ (currently recommended burner at ubuntu.com/download/desktop#how-to-install) from etc, and burn Ubuntu into a SanDisk Ultra Flair 64 GB - install Ubuntu from USB flash. No internet connection initially, default everything.
- notice that Ubuntu 24.04 is too broken, install Ubuntu 22.04.4 on the previously used USB from Ubuntu, and then install 22.04 instead... minimal installation, encrypted ZFS
- Ubuntu 24.04 "The application files has closed unexpectedly". This likely terminated uncompression of the bz2 halfway, and led to a corrupted monerod...
- askubuntu.com/questions/15520/how-can-i-tell-ubuntu-to-do-nothing-when-i-close-my-laptop-lid fix the eternal laptop lid issue without GUI solution...
- copy view only wallet private key by takinga picture of the QR code with Android cell phone. This gives it to the CIA immediately, but that's fine as we're going to publish it publicly.
- digitalcommons.law.seattleu.edu/cgi/viewcontent.cgi?article=1585&context=sulr
- www.inverse.com/article/12948-computer-generated-vr-child-pornography-will-be-horrible-illegal-and-immersive
- www.crime-research.org/library/Illegal1.htm
- www.quora.com/Should-purely-computer-generated-imagery-CGI-of-child-pornography-be-illegal
- Suck at your job:
- Have bad memory so you have to take notes: Ciro Santilli's bad old event memory
- Be a compulsive knowledge hoarder: Ciro Santilli's knowledge hoarding
- Seek glory over money: Ciro Santilli's selfish desires
- Try to make a carrier out of it: OurBigBook.com
- Be born compassionate: Ciro Santilli's self perceived compassionate personality
- He doesn't actually write that much, but when he does he focuses on higher impact stuff, see remarks about "He doesn't like to refresh the homepage looking for easy reputation" on Section "Ciro Santilli's Stack Overflow contributions"
- Contribute in a place where it is super easy for people to give you upvotes if they like your stuff. This way, you will see the uploads, and that will motivate you to re-read your content and make it more perfect with additions and corrections.
Of course those racist Nazis are a bunch of idiots, but how can you be surprised when freedom-of-speech focused tech gets used by them? www.theverge.com/2019/7/12/20691957/mastodon-decentralized-social-network-gab-migration-fediverse-app-blocking
Obviously, a few large instances dominate the user base for all practical purposes: kevq.uk/centralisation-and-mastodon/. And likely the network splits into hate-speech/non-hate-speech blacklist boundaries. And since the dominating closed networks will never lose user counts (???), the only instance that dominates will be the main hate speech one.
The flagship instance was mastodon.social and then in 2020 they closed signups for it and created a secondary mastodon.online.
The "advanced interface" feature is bad. Really bad. MacOS file browser inspired.
Used to explain the black-body radiation experiment.
Published as: On the Theory of the Energy Distribution Law of the Normal Spectrum by Max Planck (1900).
The Quantum Story by Jim Baggott (2011) page 9 mentions that Planck apparently immediately recognized that Planck constant was a new fundamental physical constant, and could have potential applications in the definition of the system of units (TODO where was that published):This was a visionary insight, and was finally realized in the 2019 redefinition of the SI base units.
Planck wrote that the constants offered: 'the possibility of establishing units of length, mass, time and temperature which are independent of specific bodies or materials and which necessarily maintain their meaning for all time and for all civilizations, even those which are extraterrestrial and nonhuman, constants which therefore can be called "fundamental physical units of measurement".'
TODO how can it be derived from theoretical principles alone? There is one derivation at; en.wikipedia.org/wiki/Planck%27s_law#Derivation but it does not seem to mention the Schrödinger equation at all.
Quantum Mechanics 2 - Photons by ViaScience (2012)
Source. Contains a good explanation of how discretization + energy increases with frequency explains the black-body radiation experiment curve: you need more and more energy for small wavelengths, each time higher above the average energy available.Creator of Basic English.
Good place to hunt for the beauty of mathematics.
- prokaryote models:
- E. Coli: the most well studied
- mycoplasma: a very minimal genus, notable species: Mycoplasma genitalium
- eukaryote
- S. cerevisiae: simplest eukaryote model. Unicellular.
- C. elegans: simplest multicellular organism model
- vertebrate:
- Zebrafish: simplest vertebrate model
- mammal:
- Mus musculus: simplest mammal model
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.
The definition does not include homonuclear molecules which is a pain.
Process Simulation Software FREE Download - Aspen Hysys versus DWSim | COCO by Jeferson Costa (2020)
Source. Jeferson, a Brazilian from Petrobras, is the creator of the open source DWSim software, and in this video he gives a quick demo of his software and compares it briefly to aspen HYSYS, which appears to be the golden paid reference implementation.Handbook 2019/2020: web.archive.org/web/20210211192812/http://teaching.chem.ox.ac.uk/Data/Sites/58/media/courseinfo/ug-handbook-chemistry-2019-20.pdf
At teaching.chem.ox.ac.uk/undergraduate-course-handbook.aspx there's a paywall, but Google found the PDF it anyways.
www.ox.ac.uk/students/academic/guidance/undergraduate/handbooks in theory links to all handbooks, but some are likely paywalled. But Google can generally find them anyways.
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Quantum Field Theory lecture notes by David Tong (2007) puts it well:This is also mentioned e.g. at Video "The Quantum Experiment that ALMOST broke Locality by The Science Asylum (2019)".
In classical physics, the primary reason for introducing the concept of the field is to construct laws of Nature that are local. The old laws of Coulomb and Newton involve "action at a distance". This means that the force felt by an electron (or planet) changes immediately if a distant proton (or star) moves. This situation is philosophically unsatisfactory. More importantly, it is also experimentally wrong. The field theories of Maxwell and Einstein remedy the situation, with all interactions mediated in a local fashion by the field.
There are unlisted articles, also show them or only show them.