Imagine the lyrics of a popular song like this: “I love you to bright globular objects.” It wouldn’t make much of a career, would it? So let us continue to call them stars and scientists to investigate how they are born, live and die. About these and many others he writes with scientific precision and literary mastery Manos Saridakis in a small book that contains the biggest thing there is: the Universe.
In 112 pages the universal quest of the human species to understand is condensed. A research whose beginnings are lost in the depths of the centuries and whose evolution promises to be exciting. “By 2040, the way and depth of acquiring new knowledge about the world around us will have changed dramatically, and such a volume of new data is expected that practically only Artificial Intelligence and machine learning will be able to process it. Whoever built the Antikythera Mechanism would have been proud of his “children”, writes the author and principal researcher of the National Observatory of Athens, Manos Saridakis, in a typical disgust of the book that will be released tomorrow, Monday.
Through the “Universe” pass the leading scientific theories and discoveries and, above all, the big questions, with each one finding an answer giving birth to a new one. What happened before the Big Bang? How big and how “old” is the Universe? And what’s beyond that? With these «the international dream team, the greatest minds of all time who are building their own Galaxy. Aristotle, Eratosthenes, Galilean, Newton, Albert Einstein, Stephen Hawking, Johannes Kepler, Jocelyn Bell, Robert Oppenheimer, Edwin Hubble and so many others.
“(Exploring the Universe) is not the momentary work of one man, but requires collective work over many generations. We are nothing but matter organized at a higher level, such that it has become self-aware and studies itself. Being ends up studying Being itself, and even successfully,” writes Manos Saridakis.
The sizes are monstrous and the complexity of the laws governing the Universe infinite. Our Milky Way, created 13.6 billion years ago, is one of about 400 billion galaxies – maybe 2 trillion! – in the observable Universe. It is about 90,000 light-years in diameter and has about 100 to 400 billion stars and at least as many planets around it.
The author, in a happy moment of coexistence of natural sciences and philosophy, recalls: “We live on a random planet, a random star, a random Galaxy, a random supercluster, in a random region. So the next time someone acts like they are the center of the world, just tell them that the world has no center…”
EXCERPTS
» There are manya money up there
- “The value of the raw materials that a “small” asteroid has amounts to billions of dollars, while larger ones, such as 511 Davida (size 320 km) or 16 Psyche (size 220 km), consisting of nickel, iron, cobalt, etc., have an estimated value of around 30,000 trillion. dollars, i.e. 300 times the global GDP! And because technologically we are not so far away from space mining prospects, this field will be first in the future competition in Space, mainly between the West and Russia/China”.
- “It is estimated that about 25 million meteoroids, micrometeoroids and other space debris enter the Earth’s atmosphere each day, adding about 15,000 tons of material to Earth each year.”
» EARTH VERSION 2.0;
“For a planet to qualify as potentially life-friendly and, even better, to have a chance of being Earth-like, it must: a) be relatively small (and therefore rocky), b) to be orbiting in the “habitable” zone of its star (and not too close to it, otherwise it would be endangered by its stellar activity), with temperatures that would allow water to exist in liquid form, c) to feature elements such as carbon and d) to have the right atmosphere”.
» Is there anyone? out there; And if so, where are they all?
“Distances are unimaginably vast, our Milky Way alone is 100,000 light-years across (a “spindle” in the observable Universe), so it is practically impossible for random life forms to communicate with each other by physical transport. The possibility of communication with various kinds of signals should not be ruled out, but again we are talking about time scales of thousands and millions of years.”
” Dark matter, unknown energy
“At present, heavy elements (which make up planets, comets, meteors, us, etc.) make up just 0.03% of the observable Universe. Stars are just 0.5%. Photons are practically negligible (around 0.001%), while neutrinos around 0.5%. Finally, around 4% is free hydrogen and helium. This 5% is what we know, the ordinary matter we describe with the Standard Model of Particle Physics. The other 95% is what we don’t know.”
Info
“THE UNIVERSE”
MANOS SARIDAKIS*
EDITIONS: “PAPADOPOULOS”
PAGE: 112
* Manos Saridakis is a principal researcher at the National Observatory of Athens, with research interests in Astroparticle Cosmology and Gravitational Theories. He holds a doctorate in Nuclear Physics from the National Technical University of Greece and has worked at NTUA and abroad. He is in the top positions of the international ranking of Stanford University with 1% of the most influential scientists worldwide.
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