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Three Caves

Part of Serbia lands below Danube river is pretty mountainous, with complex geology especially in eastern parts where Carpathian and Balkan mountains collided and over eons formed Serbian Carpathians with total of 14 independent mountain ranges in existence today. These rocks date back to the Proterozoic Eon (2.5 billion - 541 million years ago) with limestones and dolomites mainly formed from late Jurassic to early Cretaceous, around 100 million years ago. There are dozens of large caves within these mountains and many with tourist paths built to visit and admire their beauty and history. Two of them we visited last week and they both gave us extraordinary experience and impressions. However, the first cave in this blog story belongs to the one formed in the foothill of an ancient volcano of the nowadays mountain of Bukulja in western Serbia, although the recent paper posted a theory that the mountain is much younger (15 million year ago) and instead formed in tectonic processes.

The Oldest Pictograph for Copper

Last year, during our visit to Cretan site of Knossos and their wonderful museum in Heraklion dedicated in large part to the one of the greatest peaceful periods in human history, I didn't hide admiration for old Minoans and their way of life. I even said I would move to Crete without second thoughts if I had a time machine, mainly to avoid hostility of the world order we are currently living in today. At the time, considering only European continent, I was under impression that cultures like Minoan were rare and the Bronze Age society we glimpsed on Crete was maybe walking on the edge of being the only one in the history of mankind. To say the least, I couldn't be more wrong. Only couple of millenniums before during the late Neolithic period, known as Chalcolithic or simply the Copper Age, there was an old European society that lived for centuries and also flourished in peaceful harmony and perfect equilibrium with nature, themselves and their immediate land where they buil

Interview With an 'X'

The 'X' is definitely one of the most important letters in the alphabet. Not only that it is the most valuable variable in all math equations and scientific chase for the unknown, but in the entire history of human riddles, and I mean not always related to math, it always marks the most interesting spot. Sometimes the one with the treasure. It was not coincidence that old Romans used it for the most important number of them all. 10. The very base of our widely used numeric system. But we are not here to talk about mathematics or treasure hunting per se. It will be more about age. Of ten. My son Viktor is turning this magic number on this year Earth Day (April 22nd) and I decided, in addition to our previous topic and post Interview With an Expert , to fire another set of questions for him to answer. This time more general and within various realm of life and .. well .. stuff... So let's start with favorites. I guess they say a lot about personality. And they don'