x86 Paging Tutorial Linux source tree Updated 2025-07-16
In
v4.2, look under arch/x86/:include/asm/pgtable*include/asm/page*mm/pgtable*mm/page*
There seems to be no structs defined to represent the pages, only macros:
include/asm/page_types.h is specially interesting. Excerpt:#define _PAGE_BIT_PRESENT 0 /* is present */
#define _PAGE_BIT_RW 1 /* writeable */
#define _PAGE_BIT_USER 2 /* userspace addressable */
#define _PAGE_BIT_PWT 3 /* page write through */ Complete metric space Updated 2025-07-16
In plain English: the space has no visible holes. If you start walking less and less on each step, you always converge to something that also falls in the space.
One notable example where completeness matters: Lebesgue integral of is complete but Riemann isn't.
Connected space Updated 2025-07-16
Jewish Christian Updated 2025-07-16
Radiocarbon dating Updated 2025-07-16
Robotics Updated 2025-07-16
Causality in quantum mechanics Updated 2025-07-16
In simple terms, if you believe in the Schrödinger equation and its modern probabilistic interpretation as described in the Schrödinger picture, then at first it seem that there is no strict causality to the outcome of experiments.
People have then tried to recover that by assuming that there is some inner sate beyond the Schrödinger equation, but these ideas are refuted by Bell test experiments, unless we give up the principle of locality, which feels more important, especially in special relativity, where faster-than-light implies time travel, which breaks causality even more dramatically.
Celestron NexStar 4SE Updated 2025-07-16
Amateur telescope Updated 2025-07-16
Complex dot product Updated 2025-07-16
This section is about the definition of the dot product over , which extends the definition of the dot product over .
Some motivation is discussed at: math.stackexchange.com/questions/2459814/what-is-the-dot-product-of-complex-vectors/4300169#4300169
Just like the usual dot product, this will be a positive definite symmetric bilinear form by definition.
Disable JavaScript on Chromium Updated 2025-07-16
Transport Updated 2025-07-16
Ainan Celeste Cawley Updated 2025-07-16
His father fought a lot with the stupid educational system to try and move his son to his full potential and move to more advanced subjects early.
A crime of society to try and prevent it. They actually moved the family from Singapore to Malaysia for a learning opportunity for the son. Amazing.
This is the perfect illustration of one of Ciro Santilli's most important complaints about the 2020 educational system:and why Ciro created OurBigBook.com to try and help fix the issue.
Bibliography:
Ainan Cawley: Child prodigy (2013)
Source. - youtu.be/Ugi74cwPMSg?t=137 finding the right school
Cherwell (newspaper) Updated 2025-07-16
Crankstart Foundation Updated 2025-07-16
At crankstart.org/grants the organization's website describes mostly California activities, but they do at least also act in the University of Oxford, see: Section "University of Oxford study costs".
Presumably the name refers to crank starting an old car, as in helping out those in difficulty like poor students get started in life. But is also an obscure slang for a type of handjob according to Urban Dictionary.
Kleiner Perkins Updated 2025-07-16
John Doerr Q&A at Berkeley (2015)
Source. - youtu.be/4xWGSUZmkIc?t=634 invest in batteries
Korean drama Updated 2025-07-16
www.nytimes.com/2023/07/09/world/asia/north-korea-china-defectors.htmlK-drama, the ultimate symbol of resistance. Epic.
North Korea keeps itself cut off from the internet and sends these highly trained specialists to do work in China, Southeast Asia and elsewhere to avoid international sanctions imposed on the country for its nuclear weapons program. The specialists usually live together in dormitory apartments, where they are instructed to spy on each other. Their North Korean minders look for signs of disloyalty - like watching K-dramas.
UK cycle route Updated 2025-07-16
Mexican drug war Updated 2025-07-16
Place de la République Updated 2025-07-16
There are unlisted articles, also show them or only show them.