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notes on projects by m.d.
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digital_physics2:
nachricht wie folgt:
+
Eine weitere Alternative zur Dunklen Materie stellt das vom niederländischen Physiker Erik Verlinde entwickelte Modell der
+Entropischen Gravitation dar. Darin wird Gravitation nicht als Wechselwirkung von Materie mit Dunkler Materie verstanden, sondern
+als Emergenz von Materie und Information beschrieben.
+
ziemlich interessante ansage. es geht um die diskussion ueber dunkle materie. ich bin da sehr skeptisch und denke eher an
einen modelfehler in der gravitations theorie als an eine riesige verborgene masse im weltall, und das ist einer der ansaetze.
es ist schoen zu sehen das die moderne physik die information im makrobereich aufgreift, so kann die versschraenkung von mikro makro
+aussehen. kool.
https://de.wikipedia.org/wiki/Entropische_Gravitation
##digital physics
##entropy
November 12, 2023
negentropie:
https://de.wikipedia.org/wiki/Transinformation
https://de.wikipedia.org/wiki/Negentropie
##informationtheorie
##entropy
December 29, 2022
test_the_key:
http://www.phy.duke.edu/~rgb/General/dieharder.php
##rng
##linux
##entropy
December 29, 2022
systems_entropy:
watch -n .1 cat /proc/sys/kernel/random/entropy_avail
##rng
##entropy
##linux
December 29, 2022
signal_noise:
Nate Silver
The Signal and the Noise: The Art and Science of Prediction
##noise
##math
##entropy
December 29, 2022
ghostradio_python_script:
maex@:~/ghostradio/code$ more ghostradio.py
import numpy as np
import cv2
import os, sys, struct, shutil, time
print "configuring video dev"
# 1 = composite 0 = tuner usw
os.system("v4l2-ctl -i 1")
cap = cv2.VideoCapture(0)
#resolution
ret = cap.set(3,720)
ret = cap.set(4,576)
timestr = time.strftime("%Y%m%d-%H%M%S")
grname = "gr-random-bin"+timestr
fd = os.open(grname,os.O_RDWR|os.O_CREAT)
while(True):
# Capture frame-by-frame
ret, frame = cap.read()
# Our operations on the frame come here
gray = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)
for x in xrange(1, 12): # zeilen anzahl und position 1 = start 2 =laenge (bei 640x480 ist das theoretisch 1, 479)
for y in xrange(1, 18): # scanrange 1 start 2 ende (zb fuer 640x480 ist das dann 1, 640)
output = gray[x, y]
# output = bin(gray[x ,y])[2:].zfill(8)
# print bin(gray[x ,y])[2:].zfill(8)
output = chr(output)
os.write(fd, output)
# change to this to write down numbers:
# output = str(output)
# os.write(fd, output+';')
# Display the resulting frame
cv2.imshow('frame',gray)
if cv2.waitKey(1) & 0xFF == ord('q'):
break
#checking filesize > 2gb close file open new filename+timestamp
statinfo = os.stat(grname)
b = statinfo.st_size
b = ((b /1024)/1024)
if b > 2000:
os.close(fd)
shutil.move('gr-random-bin'+timestr,'random')
timestr = time.strftime("%Y%m%d-%H%M%S")
grname = "gr-random-bin"+timestr
fd = os.open("gr-random-bin"+timestr,os.O_RDWR|os.O_CREAT)
# When everything done, release the capture
os.close(fd)
cap.release()
cv2.destroyAllWindows()
maex@:~/ghostradio/code$
##ghostradio
##linux
##entropy
##cryptoart
December 29, 2022
diy_quantum_physics:
from the book exploring quantum pyhsics,..wiley
10:48 <@ant> the random number function in your computer produces only a random looking sequence ofnumbers through a specific algorithm. if you know the algoritm and the position in thesequence, you can accurately predict what will be the next number in the sequence. whilethis may be good enough for your home computer games,....
##entropy
##physics
December 29, 2022
bilderzeugung_mit_dem_geigerzaehler:
jede zahl eine farbe > 1 frame //webcolors
jede 3 zahlen eine farbe rgb > 1 frame //rgb farbraum
##noise
##entropy
December 29, 2022
dev_random:
Do you have a radio? Tune it in between stations. Music is highly reproducible,
and although DJ's may blabber at random they may be recorded (so reproducible)
and any radio station in general is duplicated with care in the whole area of
broadcast. Do not use the FM tuner of your radio, because FM is based on a beacon
signal with the sounds wrapped around it -- in other words, the radio can recognise
absence of a station and refuse to tune in, or adapt tuning to a nearby station.
You want to use the AM tuner, which does not have these problems.
www.cypherpunks.to/~peter/06_random.pdf
http://www.linuxfromscratch.org/hints/downloads/files/entropy.txt
the best random number generators use radioactive decay as an entropy source
gpg definition:
http://tools.ietf.org/html/rfc4880
das ist schon mal ein guter weg
http://sublimated.wordpress.com/2007/08/28/not-enough-random-bytes-available/
/dev/random wird verwendet
maex@bro:~$ cat /dev/random
)����i���1����9�Ѭ$SLu�8y�;��_�M�>��D�HUb�1�\224bQ�?����\224���A|�?d������\206��\214�a�����.�
+��Dc��@
l���o�g�
��\220�@�����,�I@���n�(b#�m���W��T
M_��ԧ�'�tW�~ k��+9'�'?�so��.���\223���L��_U{-������^�v��KlR-��q��\212������^C
maex@bro:~$
##entropy
##noise
##rng
December 29, 2022
zufall:
http://www.spektrum.de/news/ohne-zufall-gibt-es-keine-freiheit/1168814
#entropy
##entropy
December 29, 2022
r_geometry:
https://
www.quantamagazine.org/20160802-unified_theory_of_randomness/
entropy noise
##entropy
##noise
December 29, 2022
2_links:
das globale bewusstsein
http://noosphere.princeton.edu/
jaron lanier
http://www.faz.net/aktuell/feuilleton/debatten/netzkultur-warum-die-zukunft-uns-noch-braucht-1907474.html
##entropy
##noise
January 01, 2011