Physical address extension.
With 32 bits, only 4GB RAM can be addressed.
This started becoming a limitation for large servers, so Intel introduced the PAE mechanism to Pentium Pro.
Page table structure is also altered if PAE is on. The exact way in which it is altered depends on weather PSE is on or off.
Paging is done by the Memory Management Unit (MMU) part of the CPU.
It was later integrated into the CPU, but the term MMU still used.
As of 2022:
- www.ox.ac.uk/students/fees-funding/fees/rates gives study fees. Almost all courses are about 9k pounds / academic year. Courses take minimum 3 years, with an optional 4th year masters. The costs of masters can be higher however, though most aren't much.It is funny to note how Public Policy is comically priced at 45,890 for a course without laboratories, how can a country be so corrupt? :-) It was later brought to Ciro's attention that the reason is that those courses are not usually paid by individuals, but by their employers...Another eye popping one is Mathematical & Computational Finance MSc for £36,370.
- www.ox.ac.uk/students/fees-funding/living-costs gives living costs, an average 12k for the usual 9 month period
- there is the Crankstart scholarship: www.ox.ac.uk/admissions/undergraduate/student-life/help-with-the-cost/crankstart-scholarships which gives 5k/year to students whose families have less than 27k/year income, and values decrease from there to 60k/year income where they become zero.It is funny to note that the scholarship was previously named after a Welsh billionaire who studied there and donated and his wife, Michael Moritz and wife Harriet Heyman. It is actually the Welsh who are creating those scholarships for the English! It is so funny to see. His background is quite amazing, from historian to journalist to venture capitalist.It was later renamed Crankstart after the Crankstart Foundation, presumably to help gather funds from others, but it is just still led by Michael.It does appear that most/all of the natural sciences ones are reasonably priced, perhaps they are subsided.
The median household income at the time was 31k[ref]. Clearly, putting one child through university with that income would be basically impossible, you would pay 19 - 5 = 14k/year, almost half of your income. Two children would be impossible. Remember how each family needs to have two children minimum to perpetuate life?
- cherwell.org/2023/10/02/27000-for-a-library-card/ £27,000 for a library card? published on the Cherwell
The way to think about this is:
- the translation group operates on the argument of a function
- the generator is an operator that operates on itself
So let's take the exponential map:and we notice that this is exactly the Taylor series of around the identity element of the translation group, which is 0! Therefore, if behaves nicely enough, within some radius of convergence around the origin we have for finite :
This example shows clearly how the exponential map applied to a (differential) operator can generate finite (non-infinitesimal) Translation!
Dropped in favor of SVG 2.
Good shortcuts and user experience.
No waveform viewer: github.com/otsaloma/gaupol/issues/49 so unusable.
Originally done with (neutral) silver atoms in 1921, but even clearer theoretically was the hydrogen reproduction in 1927 by T. E. Phipps and J. B. Taylor.
The hydrogen experiment was apparently harder to do and the result is less visible, TODO why: physics.stackexchange.com/questions/33021/why-silver-atoms-were-used-in-stern-gerlach-experiment
The Stern-Gerlach Experiment by Educational Services, Inc (1967)
Source. Featuring MIT Professor Jerrold R. Zacharias. Amazing experimental setup demonstration, he takes apart much of the experiment to show what's going on. There are unlisted articles, also show them or only show them.