XML Updated +Created
Xun (instrument) Updated +Created
Video 1.
Song of Chu xun solo
. Source. TODO performer
y86.js.org Updated +Created
The good:
  • slick UI! But very hard to read characters, they're way too small.
  • attempts to show state diffs with a flash. But it goes by too fast, would be better if it were more permanent
  • Reverse debugging
The bad:
CIA 2010 covert communication websites / Searching for Carson Updated +Created
Edit: Carson was found Oleg Shakirov's findingsby Oleg Shakirov: alljohnny.com, communicated at: twitter.com/shakirov2036/status/1746729471778988499, earliest archive from 2004 (!): web.archive.org/web/20040113025122/http://alljohnny.com/, The domain was hidden in plain sight, it was present in a not very visible watermark visible in the Reuters article screenshot! The watermark was added to the CIA to the background image, it is actually present on the website. In retrospect, it was actually present at on the expired domain trackers dataset, but the mega discrete all second word made Ciro Santilli miss it: github.com/cirosantilli/expired-domain-names-by-day-2015/blob/9d504f3b85364a64f7db93311e70011344cff788/07/05/02#L1572
Figure 1.
2004 Wayback Machine archive of alljohnny.com
.
What follows is the previous
The fact that the Reuters article has a screenshot of it, and therefore a Wayback Machine link, plus the specificity of the website topic, will likely keep Ciro awake at night for a while until someone finds that domain.
Some text visible on the Reuters screenshot:
It is unclear however if this text is plaintext or part of a an image.
Some failed attempts, either dry guesses or from DNS grepping dataset searches:
Searching the Wayback Machine proved fruitless. There is no full text search: Wayback Machine full text search, and a heuristic web.archive.org/web/20230000000000*/Johnny%20Carson search has relevant hits but not the one we want.
Another attempt was to search for "carson" on webmasterhome.cn which lists expired domains in bulk by expiration day, and it search engine friendly. It contains most of the domains we've found so far. Google either doesn't support partial word search or requires you to be a God to find itso we settle for DuckDuckGo which supports it: duckduckgo.com/?q=site%3Awebmasterhome.cn+%22carson%22&t=h_&ia=web Adding years also helps: duckduckgo.com/?q=site%3Awebmasterhome.cn+%22carson%22+2011&ia=web with this we might be getting all possible results. Ciro went through all in 2011, 2012 and 2013 but no luck. Also fuck en.wikipedia.org/wiki/Carson_City,_Nevada and en.wikipedia.org/wiki/Carson,_California :-)
Let's search tools.whoisxmlapi.com/reverse-whois-search for "carson" contained in any historic domain name. 10,001 lines. Grepping those, no good Wayback machine hits for those that also contain "johnny" or "show". Data at: raw.githubusercontent.com/cirosantilli/media/master/cia-2010-covert-communication-websites/tools.whoisxmlapi.com_reverse-whois-search_carson.csv in case anyone want to try and dig...
Let's also search the fortuitously timed 2013 DNS Census.
Competition law Updated +Created
Complex coordinate space Updated +Created
Mathematics Updated +Created
The proper precise definition of mathematics can be found at: Section "Formalization of mathematics".
The most beautiful things in mathematics are described at: Section "The beauty of mathematics".
Figure 1.
Study Hilbert spaces desert dilemma meme
. Source. Applies to almost all of mathematics of course. But we don't care, do we!
Yang-Mills existence and mass gap Updated +Created
Video 1.
Yang-Mills 1 by David Metzler (2011)
Source.
A bit disappointing, too high level, with very few nuggests that are not Googleable withing 5 minutes.
Breakdown:
Video 2. Source. 2 hour talk at the Kavli Institute for Theoretical Physics. Too mathematical, 2021 Ciro can't make much out of it.
Video 3.
Lorenzo Sadun on the "Yang-Mills and Mass Gap" Millennium problem
. Source. Unknown year. He almost gets there, he's good. Just needed to be a little bit deeper.
Year 1 of the mathematic course of the University of Oxford Updated +Created
Matrix inverse Updated +Created
When it exists, which is not for all matrices, only invertible matrix, the inverse is denoted:
Metagenomics Updated +Created
Experiments that involve sequencing bulk DNA found in a sample to determine what species are present, as opposed to sequencing just a single specific specimen. Examples of samples that are often used:
One related application which most people would not consider metagenomics, is that of finding circulating tumor DNA in blood to detect tumors.
Methane Updated +Created
Metric space vs normed vector space vs inner product space Updated +Created
TODO examples:
Figure 1.
Hierarchy of topological, metric, normed and inner product spaces
. Source.
Micro Bit Updated +Created
yolov5-pip Updated +Created
OK, now we're talking, two liner and you get a window showing bounding box object detection from your webcam feed!
python -m pip install -U yolov5==7.0.9
yolov5 detect --source 0
The accuracy is crap for anything but people. But still. Well done. Tested on Ubuntu 22.10, P51.
Video 1.
fcakyon/yolov5-pip webcam object detection demo by Ciro Santilli (2023)
Source.
You aren't gonna need it Updated +Created
Sometimes you are really certain that something is a required substep for another thing that is coming right afterwards.
When things are this concrete, fine, just do the substep.
But you have to always beware of cases where "I'm sure this will be needed at some unspecified point in the future", because such points tends to never happen.
YAGNI is so fundamental, there are several closely related concepts to it:
Figure 1.
xkcd 2730: Code Lifespan
. Source.
Fields Medal Updated +Created
That 15,000 canadian dollar prize though, what a joke! That's what you get when an impoverished scientist, and not a rich industrialist, creates a prize!
Kyoto medal Updated +Created
Microwave source Updated +Created
Microwave only found applications into the 1940s and 1950s, much later than radio, because good enough sources were harder to develop.
One notable development was the cavity magnetron in 1940, which was the basis for the original radar systems of World War II.
Web portal Updated +Created

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