Login without password: askubuntu.com/questions/915585/how-to-login-mysql-shell-when-mysql-have-no-passwordworks on Ubuntu 20.10.
sudo mysqlCreate user for further logins without
sudo askubuntu.com/questions/915585/how-to-login-mysql-shell-when-mysql-have-no-password/1325689#1325689:sudo mysql -e "CREATE USER $USER"Run command from CLI stackoverflow.com/questions/1602904/how-do-you-run-a-single-query-through-mysql-from-the-command-line
mysql -e 'SHOW DATABASES'Create test user with password:and login as that user:Login with password given on the command line:The
sudo mysql -e 'CREATE USER user0 IDENTIFIED WITH mysql_native_password BY "a"'
sudo mysql -e 'GRANT ALL PRIVILEGES ON database_name.* TO "user0"'mysql -u user0 -pmysql -u user0 -pmypasswordIDENTIFIED WITH mysql_native_password part is to overcome "Client does not support authentication protocol requested by server" when connecting from Node.js.List users:
sudo mysql -e 'SELECT * FROM mysql.user'View permissions for each user on each DB: serverfault.com/questions/263868/how-to-know-all-the-users-that-can-access-a-database-mysql
sudo mysql -e 'SELECT * FROM mysql.db'List databases:
sudo mysql -e 'SHOW DATABASES'Create database:
sudo mysql -e 'CREATE DATABASE mydb0'Destroy database:
sudo mysql -e 'DROP DATABASE mydb0'Physics (like all well done science) is the art of predicting the future by modelling the world with mathematics.
Ciro Santilli doesn't know physics. He writes about it partly to start playing with some scientific content for: OurBigBook.com, partly because this stuff is just amazingly beautiful.
Ciro's main intellectual physics fetishes are to learn quantum electrodynamics (understanding the point of Lie groups being a subpart of that) and condensed matter physics.
Every science is Physics in disguise, but the number of objects in the real world is so large that we can't solve the real equations in practice.
Luckily, due to emergence, we can use uglier higher level approximations of the world to solve many problems, with the complex limits of applicability of those approximations.
Therefore, such higher level approximations are highly specialized, and given different names such as:
Unifying those two into the theory of everything one of the major goals of modern physics.
xkcd 435: Fields arranged by purity
. Source. Reductionism comes to mind.
Physically accurate genie by Psychomic
. Source. This sane square composition from: www.reddit.com/r/funny/comments/u08dw3/nice_guy_genie/.Figure "xkcd 435: Fields arranged by purity" must again be cited.
An Introduction to Tensors and Group Theory for Physicists by Nadir Jeevanjee (2011) Updated 2025-05-23 +Created 1970-01-01
This does not seem to go deep into the Standard Model as Physics from Symmetry by Jakob Schwichtenberg (2015), appears to focus more on more basic applications.
But because it is more basic, it does explain some things quite well.
Both are harmonic oscillators.
In the LC circuit:
- the current current may be seen as the velocity and containing the kinetic energy
- the charge stored in the capacitor as the potential energy
You can kickstart motion in either of those systems in two ways:
There is a slight variation in temperature of CMB across the sky of the order of 200 microKelvin. It is small to the ~2.7 K average temperature, but it can be measured.
If the initial conditions of the Big Bang and the laws of physics were perfectly symmetric, then we could expect the universe to just be one perfectly uniform boring soup.
But instead some asymetry made all the fun weird things we see today happen eventually, like galaxies and life.
And the cosmic microwave background serves as a way for us to look back in time to the early conditions of the universe, as it was set in stone as soon as the universe became transparent to this light during recombination.
Or if you want to get poetic, it is the closest we can ever get to listening to the original word of God when he setup the initial conditions of the universe.
The ansiotropies of CMB is the ultimate astronomical compass we will ever have, as it is the thing with the least proper motion.
The Hundred Greatest Theorems by Paul and Jack Abad (1999) Updated 2025-05-23 +Created 1970-01-01
Technique widely used to measure the size of DNA strands, most often PCR output of a region of interest.
A simple sample application is gel electrophoresis alelle determination.
Study of the metabolome.
Never trust an experiment that is not supported by a good theory Updated 2025-05-23 +Created 1970-01-01
Not the usual bullshit you were expecting from the philosophy of Science, right?
Some notable quoters:
- Jacques Monod has the exact quote as presented here: pubmed.ncbi.nlm.nih.gov/22042272/, though presumably it was in French, TODO find the French version
- youtu.be/AYC5lE0b8os?t=41 A Computational Whole-Cell Model Predicts Genotype From Phenotype- Markus Covert by "Calit2ube" (2013), see also: Section "Whole cell simulation"
- the book Genius: Richard Feynman and Modern Physics by James Gleick (1994) mentions a few incidents of this involving Feynman, see e.g. chapter "New Particles, New Language" where he and fellow theorist Hans Bethe immediately spot problems with experimentalists' data in suspicious results
There are unlisted articles, also show them or only show them.