MPJ

Let's turn our imagination to the edge and do something different today. We can call it thought experiment, childish game, day dream, science fiction, pure fantasy or whatever we want but let's move the boundaries far away from Earth, far away from our Solar system, even farther from our Galaxy and do something wild. Let's choose a planet. Or to be more precise, let's select one in the vastness of cosmos and move away from this Earth and start new life. Of course in day dreams we are allowed to do this just because the imagination is what our species differs from others on Earth. Ok, to begin this little endeavor, we need a little astronomy to start with. What we know for sure is that our galaxy alone contains more than 200 billion stars, majority of them not so much different from our Sun and by using basic statistical study based on planet finder's microlensing technique there are approximately 100 billion planets orbiting them. Perhaps more. Multiple that b

I had once a parrot pet called Cheda. He was incredible - long ago during my university days Cheda was my only friend throughout countless sleepless nights when I was preparing for exams. He came very young and we spent lots of quality time together in my room. I never closed the cage gate so he was as free as possible and used entire flat to spread his wings. He belonged to a Australian cockatiel parrot breed or nymphicus hollandicus, how was his real scientific name. Nymphs are very popular for their ability to mimic human speech and of course for their talent to sing beautifully. Alex the African Grey Parrot* Cheda was no different and over time he learned a decent amount of words but what he performed the best was a tune from the movie "The Bridge on the River Kwai" . It was not a simple melody for a parrot and you had to see his frustration in all those moments when he missed the note - on a numerous occasions I had to pet him and telling him to take it easy - bu

Not so long ago I mentioned great city of Alexandria in post Constantine & Naissus when I described the horrible misfortune and death of Hypatia, one of the greatest philosopher and astronomer of 4th century AD, who lived at the very end of classical Greek era of prosperity. Within the same city walls, couple of centuries before, one of the equally greatest and famous scientists of all times, Claudius Ptolemy was living, exploring, teaching and dedicating his life in various disciplines including astronomy and, of course, unavoidable astrology which was considered to be "connected science" for centuries, especially in the old ages. Rachel Weisz as Hypatia of Alexandria in Agora (2009) Among other things, Ptolemy will be remembered as the one of first scholars who described and identified 48 constellations of clear and unpolluted nightly skies above Alexandria so many centuries ago. One of the biggest constellations in his list was the great constellation of Gem