Georges Charpak and Roland Omnès, in their interesting essay, “Be wise, become prophets,” write:

 ”The fundamental laws of the universe are not many. They speak of a container and of a content. One is the container of absolute space-time, governed by the law of relativity; the other is the total content of matter in all its forms, including radiation. In this context, the laws are quantum. They are called “fundamental” in the sense that all the others, countless others in all their many forms and cases, objects and circumstances, derive from these two main laws. Now, the laws of general relativity, of space-time, generate two seemingly opposed effects: the expansion of the universe which expands space, and gravitational forces which compact matter. The gravitational field has assembled the uniformed matter of the origins to shape the galaxies, the very first stars and later, the planets.”

Here, Rossi, roughly, as was composed, piece by piece, our universe after the big bang. Put in a nutshell, the bosons of Higgs and the quarks have given rise to protons and neutrons, these, in turn, to atoms, atoms began to mix and filling pores among themselves, resulting in small balls, marbles that over time became balls. Then they became big stones and, as they grew, became massive, and developed a gravitational force. This game of attraction and growth on the one hand and expansion on the other, continued for billions of years before forming the planets, stars, galaxies, black holes, universes and, of course, the humans.

Now, in this mass of matter, two laws dominate, as correctly stated by the two French scientists: the law of expansion and the law of attraction, and then, only then, all others.

See “Has Life Meaning?”

 

So we start with a question: “How does the Universe look today? Now, to answer this question, we must start with things that are near to us, and gradually expand our look to the vast and immense spaces of the Universe.

To begin with, let’s try if we can see, almost feel, the curvature of the Earth. This has a diameter of almost 13 thousand kilometers. Imagine now a flat terrain with no obstructions. In the distance we can see the top of a skyscraper. If we lengthen this image 70 or 80 Kms, we would be able to see 400 or 500 meters below the horizon, at this point, we have the feeling of the curvature of the Earth. Then, if we raise our eyes, to one hundred kilometres above the Earth, both a cotton swab and a crystal ball move through space, gracefully, at the same speed, free from the earth’s gravitational pull.

 At this point, in the blink of an eye, we see the Moon, a second light that is 300 thousand kilometres away. Then, 150 million kilometers or 8 light-minutes away, we find the sun, with a  diameter of more than a million Kms, and consumes about 4 million tons per second of its fuel efficiency. In its core, elements boil at 15 million degrees centigrade. Even on the Sun there are rivers, not of water, but of incandescent plasma. They are over 30 thousand kilometres long, and 40 thousand are wide and deep, and run about 140 km / h.

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The Big Bang

The beginning: nothing, not a noise, not a stirring, not a soul, the universe begins in absolute darkness and silence.

I First image: timeless and lifeless, the space does not exist yet, all is dense, tense, then, suddenly, bamm!, the big bang;

II Second image: a billionth of a billionth of a second after the big bang, when time and space begin, the universe is a concentration of pure energy;

III Third image: within an instant, the universe begins to expand and quarks and antiquarks, the building blocks of matter that give rise to protons and neutrons, start to be formed;

IV Fourth image: 20 seconds from the beginning of the universe, a dense cloud with a temperature of 300 million degrees is formed;

V Fifth image: 3 minutes from its beginning, protons and neutrons bind to form the first atoms of helium and hydrogen;

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