Experiments: speed of light experiments.
Classification of k-transitive groups by 
Ciro Santilli 35 Updated 2025-01-10 +Created 1970-01-01
Ciro Santilli 35 Updated 2025-01-10 +Created 1970-01-01TODO this would give a better motivation for the Mathieu group
async is all present in JavaScript for two reasons:- you make network requests all the time
- JavaScript is single threaded, so if you are waiting for a network request, the UI freezes, see remarks on the deprecation of synchronous HTTP request at: developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest/Synchronous_and_Asynchronous_Requests
However, it is also Hell: how to convert
async to sync in JavaScript. Loop-mediated isothermal amplification by Ciro Santilli 35 Updated 2025-01-10 +Created 1970-01-01
Ciro Santilli 35 Updated 2025-01-10 +Created 1970-01-01Like PCR, but does not require thermal cycling. Thus the "isothermal" in the name: iso means same, so "same temperature".
Not needing the thermo cycling means that the equipment needed is much smaller and cheaper it seems.
This is perhaps the most popular version of Great doubt in 21st century China
Fuller quote as seen e.g. at: www.hrfjw.com/fjrw/hcrw/ywfs/324750.htmltranslation;
大疑大悟，小疑小悟，不疑不悟
Great doubt, great underestanding. Small doubt, small understanding. No doubt, no understanding.k.sina.cn/article_5668613235_151e02c7300100wutq.html attributes it to modern day Chinese "Master Chongci" (崇慈法师).
Their UI is horrendous as of 2020:
I need this for OurBigBook.com!! webmasters.stackexchange.com/questions/104241/can-google-analytics-track-url-fragment-in-url
They removed referrer path completely in GA4... OMG WTF are they doing!
How Google began by Craig Silverstein part 1 (2006)
Source. Talk given at the University of North Carolina. A possibly official invitation from the time: www.ibiblio.org/pjones/blog/googles-craig-silverstein-at-unc-1026/.This is where Ciro Santilli stored his code since he started coding nonstop in 2013.
He does not like the closed source aspect of it, but hey, there are more important things to worry about, the network effect is just too strong.
Lawrence Krauss explains Gauge symmetry by Joe Rogan (2017)
Source. While most of this is useless as you would expect from the channel, it does give one key idea: you can change charge locally, but things somehow still work out.
And this has something to do with the general intuition of special relativity that only local measures make much sense, as evidenced by Einstein synchronization.
Small splits present in all levels due to interaction between the electron spin and the nuclear spin if it is present, i.e. the nucleus has an even number of nucleons.
As the name suggests, this energy split is very small, since the influence of the nucleus spin on the electron spin is relatively small compared to other fine structure.
TODO confirm: does it need quantum electrodynamics or is the Dirac equation enough?
The most important examples:
- hydrogen line useful in astronomy, and also the simplest possible case between 1s
- caesium standard, which is used to define the second in the International System of Units since 1967.
These are the final equations that you derive from the Lagrangian via the Euler-Lagrange equation which specify how the system evolves with time.
It is non-trivial to determine what is the smallest legal ELF file, or the smaller one that will do something trivial in Linux.
Some impressive attempts:
In this example we will consider a saner
hello world example that will better capture real life cases.We will get into more detail later, but it is good to have it in mind now:
- section: exists before linking, in object files.One ore more sections will be put inside a single segment by the linker.Major information sections contain for the linker: is this section:
- raw data to be loaded into memory, e.g.
.data,.text, etc. - or metadata about other sections, that will be used by the linker, but disappear at runtime e.g.
.symtab,.srttab,.rela.text
- raw data to be loaded into memory, e.g.
- segment: exists after linking, in the executable file.Contains information about how each segment should be loaded into memory by the OS, notably location and permissions.
There are unlisted articles, also show them or only show them.