03/10/2026
Latest version of ISDN Superspy Plus released. An ISDN Modem (netmod) controller software.
01/01/2020
French Billiards Pro app released for Android devices.
01/03/2017
GPS Compass Speedometer Pro app released for Android devices.
29/11/2015
Retina Calculator app released for Android devices.
10/02/2013
A-Level Mathematics 1,2,3 android app has more than 5000 active users. This app contains handwritten notes for maths revision.
15/04/2012
Existon Internet Radio no longer streaming. Thank you all listeners!
Welcome to existon.gr
This is my personal website. I am an engineer in electronics and a scientist in physical science and engineering in medicine. I have a great interest in computers, technology, electronics, astronomy, science and nature. In the projects section you can find information on a few projects I have been involved with.
I also like healthcare, women's fashion and beauty trips.
To code is to create
My favourite languages are Java, Visual Basic .Net, C and C#. I like Visual Studio, Android Studio which are my favorite programming platforms.
Crude map of the Universe
Representation of the image of the Universe at the age of about 380,000 years after the Big Bang discovered accidentally in 1964 by Arno Penzias and Robert Wilson.
Image credit: NASA (WMAP
Overview - NASA Science)