Raspberry Pi Pico W MicroPython example Updated 2025-07-27
An upstream repo at: github.com/raspberrypi/pico-micropython-examples
Some generic Micropython examples most of which work on this board can be found at: Section "MicroPython example".
The examples can be run as described at Program Raspberry Pi Pico W with MicroPython.
- rpi-pico-w/upython/led_on.py: turn on-board LED on and leave it on forever. Useful to quickly check that you are still able to update the firmware.
- rpi-pico-w/upython/led_off.py: turn on-board LED off and leave it off forever
- rpi-pico-w/upython/pwm.py: pulse width modulation. Using the same circuit as the rpi-pico-w/upython/blink_gpio.py, you will now see the external LED go from dark to bright continuously and then back
CIA 2010 covert communication websites 2013 DNS Census virtual host cleanup Updated 2025-07-16
We've noticed that often when there is a hit range:and that this does not seem to be that common. Let's see if that is a reasonable fingerprint or not.
- there is only one IP for each domain
- there is a range of about 20-30 of those
Note that although this is the most common case, we have found multiple hits that viewdns.info maps to the same IP.
First we create a table The
u
(unique
) that only have domains which are the only domain for an IP, let's see by how much that lowers the 191 M total unique domains:time sqlite3 u.sqlite 'create table t (d text, i text)'
time sqlite3 av.sqlite -cmd "attach 'u.sqlite' as u" "insert into u.t select min(d) as d, min(i) as i from t where d not like '%.%.%' group by i having count(distinct d) = 1"
not like '%.%.%'
removes subdomains from the counts so that CGI comms are still included, and distinct
in count(distinct
is because we have multiple entries at different timestamps for some of the hits.Let's start with the 208 subset to see how it goes:OK, after we fixed bugs with the above we are down to 4 million lines with unique domain/IP pairs and which contains all of the original hits! Almost certainly more are to be found!
time sqlite3 av.sqlite -cmd "attach 'u.sqlite' as u" "insert into u.t select min(d) as d, min(i) as i from t where i glob '208.*' and d not like '%.%.%' and (d like '%.com' or d like '%.net') group by i having count(distinct d) = 1"
This data is so valuable that we've decided to upload it to: archive.org/details/2013-dns-census-a-novirt.csv Format:The numbers of the first column are the IPs as a 32-bit integer representation, which is more useful to search for ranges in.
8,chrisjmcgregor.com
11,80end.com
28,fine5.net
38,bestarabictv.com
49,xy005.com
50,cmsasoccer.com
80,museemontpellier.net
100,newtiger.com
108,lps-promptservice.com
111,bridesmaiddressesshow.com
To make a histogram with the distribution of the single hostname IPs:Which gives the following useless noise, there is basically no pattern:
#!/usr/bin/env bash
bin=$((2**24))
sqlite3 2013-dns-census-a-novirt.sqlite -cmd '.mode csv' >2013-dns-census-a-novirt-hist.csv <<EOF
select i, sum(cnt) from (
select floor(i/${bin}) as i,
count(*) as cnt
from t
group by 1
union
select *, 0 as cnt from generate_series(0, 255)
)
group by i
EOF
gnuplot \
-e 'set terminal svg size 1200, 800' \
-e 'set output "2013-dns-census-a-novirt-hist.svg"' \
-e 'set datafile separator ","' \
-e 'set tics scale 0' \
-e 'unset key' \
-e 'set xrange[0:255]' \
-e 'set title "Counts of IPs with a single hostname"' \
-e 'set xlabel "IPv4 first byte"' \
-e 'set ylabel "count"' \
-e 'plot "2013-dns-census-a-novirt-hist.csv" using 1:2:1 with labels' \
;
Pendon Museum Updated 2025-07-16
AI alignment Updated 2025-07-16
As highlighted e.g. at Human Compatible by Stuart J. Russell (2019), this AI alignment intrinsically linked to the idea of utility in economy.
Semiconductor device fabrication Updated 2025-07-16
This is the lowest level of abstraction computer, at which the basic gates and power are described.
The ideal university Updated 2025-07-16
This is Ciro Santilli's ideal university system. It is a system that actually lives up to the name "Open University":
- no enrolment, no prerequisites. Exam as a service examination style, likely free to anyone who wants to take them, only to determine:
- who gets to use physical facilities, notably laboratories
- which students do you want to pick as apprentices/workers/PhDs
- no tuition fees: free gifted education
- school must offer free accommodation for students
- force teachers to publish their teaching material with an open license
- how to teach
Related:
- reallyopenuniversity.wordpress.com/what-is-the-rou/
Apparently Leeds based. Focused only on student fees seemingly, not how to solve it with tech/efficiency:
So far as of the early 2020's, the university that comes closest to some but not all of these principles is the University of the People. It's sad that it's such a crappy unknown thing, but it is what it is.
VX (nerve agent) Updated 2025-07-16
Algebraic geometry Updated 2025-07-16
Algorithm cheatsheet Updated 2025-07-16
Draft by Ciro Santilli with cross language input/output test cases: github.com/cirosantilli/algorithm-cheat
By others:
Blood brother Updated 2025-07-16
Chinese custom Updated 2025-07-16
Siemens Updated 2025-07-16
The main function of university is sexual selection Updated 2025-07-16
This is the actual main function of university for many people as of the 2020s. And it fulfills it quite well. A breeding ground.
In a closely related sense, university is simply a symbol of personal status. Not a place where you go to learn. And especially in the Anglophone world of fancy colleges, university also doubles down as a form of long term luxury hotel. Even if it ends up meaning debt.
There's nothing wrong with sexual selection. This type of natural eugenics is an important part of humankind. It is however just sad that any type of learning falls so much behind. A close second would be fine. But as it stands, it is just too far off.
The Matrix (1999) Updated 2025-07-16
All action scenes are useless crap, but the premise with Ciro's precious simulation hypothesis subject, related physics and the illusion of life.
It is a shame that the key premise of using human bodies to produce energy is completely and impossibly stupid. You would obviously get more energy by directing burning the food you feed into humans.
If the film had been made later, maybe the much more plausible concept of AI alignment would would have been used instead. What a shame.
- www.youtube.com/watch?v=aau8qa3xgFs Neo takes the blue pill mashup with Office Space with deepfake faces
British nuclear weapons program Updated 2025-07-16
Cambridge Reference Sequence Updated 2025-07-16
Computer network by scale Updated 2025-07-16
Essays by Ciro Santilli Updated 2025-07-16
Heaviside step function Updated 2025-07-16
Lower (compilation) Updated 2025-07-16
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