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06 JAN 2017

First post of 2017, with a true highlight of 2016. The discovery of graviational waves explained by Prof R. Adhikari and Vertasium. Official paper pdf.
11 DEC 2016
Happy Birthday fox21.at!
11 DEC 2016

This is how rotation works!
11 FEB 2016
Gravity waves discovery
The discovery of gravity waves! The beginning of a new era: "...a hard-fought breakthrough marks the beginning of an entirely new race, rather than the finish line"
11 FEB 2016

Signs of a 9th planet?
11 FEB 2016

This is how card tricks work!
15 JAN 2016
Links page update!
08 JAN 2016
contour plot
Playing with simple contour plots! The original image (Messier 101) from Wikipedia has been modified by a Gaussian Blur (Gimp: Filters > Blur > Gaussian Blur with r = 4 px) and Colorify (Gimp: Colors > Colorify) effect to avoid a spill-over of contour lines. The image is then imported to python with the PIL module to create a contour plot. The background shows the original image in grayscale (L mode). Python code.

06 JAN 2016

#2 Two colliding neutron stars form a black hole. These aren't normal stars like our sun. The collision of main sequence stars would neither form a black hole nor a supernova! The corresponding mass threshold for neutron stars to form a BH is called the Tolman-Oppenheimer-Volkoff limit.
06 JAN 2016
G2 cloud
#1 Black holes do not suck everything in!
05 JAN 2016
First snow in Vienna!
05 JAN 2016
ZAMG-Wetterwarnungen MeteoAlarm
Weather warning by ZAMG and Meteoalarm
30 DEC 2015
Geomagnetic Disturbance Alert 30/31 Dec 2015
30 DEC 2015
current weather europe by zamg
1000 hPa Pressure 30/12/15 12:00 by ZAMG

30 DEC 2015


30 DEC 2015