Make a bug report for a crash on Ubuntu Updated +Created
On Ubuntu 23.10, a crash led to the creation of:
/var/crash/_usr_bin_gnome-shell.1000.crash
After that simply running apport-cli as:
apport-cli gnome-shell
led to the creation of: bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/2049368 a bug on the gnome-shell package.
Clausius entropy Updated +Created
Ubuntu 21.10 Updated +Created
GDM crashes sometimes when switching windows right after opening a new window: bugs.launchpad.net/ubuntu/+source/gdm/+bug/1956299
Physics course of the University of Oxford Updated +Created
From the 2020/2021 Oxford physics course handbooks we can determine the following structure:
  • Year 1 (CP, "Coure Preliminaries", "Prelims"). Take all of:
    • CP1 Classical mechanics, Special relativity
    • CP2 Electromagnetism, circuit theory and optics
    • CP3 Mathematical methods 1. Complex Numbers and Ordinary Differential Equations. Vectors and Matrices.
    • CP4 Mathematical methods 2. Multiple Integrals and Vector Calculus. Normal Modes, Wave Motion and the Wave Equation.
  • Year 2 (Part A). Take all of:
    • A1 Thermal physics. Kinetic Theory, Heat Transport, Thermodynamics.
    • A2 Electromagnetism and optics
    • A3 Quantum physics. Quantum Mechanics and Further Quantum Mechanics.
    • Short options: at least one of:
      • Mathematical Methods
      • Probability and Statistics
      • S01 Functions of a Complex Variable
      • S07 Classical Mechanics
      • S10 Medical Imaging and Radiation Therapy
      • S13 Teaching and Learning Physics in Schools
      • S14 History of Physics
      • S20 History of Science
      • S21 Philosophy of Science
      • S22 Language Options
      • S25 Climate Physics
      • S27 Philosophy of Space-Time
      • S29 Exploring Solar Systems
      • S33 Entrepreneurship for Physicists
  • Year 3 (Part B). Take all of:
  • Year 4 (MPhys). Select two from:
Trinity term, the third and final term of each year, contains mostly revision from the previous two terms, after which students take their final exams, which basically account for their entire grade. Trinity is therefore a very tense part of the year for the students. After that they have summer holidays, until coming back for the next year of madness.
The official external course landing page: www.ox.ac.uk/admissions/undergraduate/courses/course-listing/physics. 2021 archive: web.archive.org/web/20221208212856/https://www.ox.ac.uk/admissions/undergraduate/courses/course-listing/physics) In those pages we see the rough structure, except that it does not have the course codes "A1" etc., and some courses are missing.
At web.archive.org/web/20221229021312/https://www2.physics.ox.ac.uk/sites/default/files/2011-06-03/course_v3_pdf_80151.pdf page 11 we can see the global course structure giving the two options, 3 year BA or 4 year Oxford physics masters:
Year 1
(Prelims)
|
|
v
Year 2
(Part A)
|
+-----------+
|           |
v           v
Year 3 BA   Year 3 (MPhys)
(Part B)    (Part B)
|           |
|           |
v           v
BA          Year 4
            (Part C)
            |
            |
            v
            MPhys
Practical courses notes: www-teaching.physics.ox.ac.uk/
Human mitochondrial DNA haplogroup Updated +Created
Globalization reduces the power of governments Updated +Created
While Ciro Santilli is a big fan of having "one global country" (and language), which is somewhat approximated by globalization, he has come to believe that there is one serious downside to globalization as it stands in 2020: it allows companies to pressure governments to reduce taxes, and thus reduces the power of government, which in turn increases social inequality. This idea is very well highlighted in Can't get you out of my head by Adam Curtis (2021).
The only solution seems to be for governments to get together, and make deals to have fair taxation across each other. Which might never happen.
Physics engine Updated +Created
There is no clear distinction between "serious simulations" and "physics engines", it's just that "physics engine" have a "for video game" connotation.
And especially, in the context of gaming, it usually means "rigid body dynamics simulation" in particular.
Electric battery Updated +Created
Light-emitting diode Updated +Created
Video 1.
How LEDs work by VirtualBrain
. Source. 2021. Good 3d schematics clearly explaining part of the LED electronic package.
Inductor Updated +Created
Power supply Updated +Created
Luboš Motl Updated +Created
Nature Scitable Updated +Created
As of 2022 visible at: www.nature.com/scitable
Apparently they had a separate URL as just scitable.com, so they were somewhat serious about it before shutting it down.
As of 2022 marked:
This page has been archived and is no longer updated
RIP.
www.nature.com/scitable/blog/student-voices/ has last entry 2015, so presumably that's the shutdown year.
Self description:
Using our platform, you can customize your own eBooks for your students. Create an online classroom. Contribute and share content and connect with networks of colleagues.
so quite related to OurBigBook.com.
Carbon-14 Updated +Created
Histone Updated +Created
These are apparenty an important part of transcriptional regulation given the number of modifications they can undergo! Quite exciting.
Argument from authority Updated +Created
Crystal oscillator Updated +Created
Video 1.
From Raw Crystal to Crystal oscillator
. Source. by United States Army Signal Corps (1943)
Project to explain each Nobel Prize better Updated +Created
Understand and explain amazingly every single Nobel Prize in physics, chemistry and biology. Since in particular the Nobel Foundation is unable to do that for any at all, especially of the key old ones, e.g. www.nobelprize.org/prizes/physics/1965/summary/. Hopeless.
To be fair, those in theoretical physics at least basically come down to reading a bunch of books. But perhaps anything slightly more experimental could have

There are unlisted articles, also show them or only show them.