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Functioning Figure 3. Isotope exchange plant with water distillation. Source: Magazine, no. 7/2008. Translation and editing Nicolae Sfetcu With the help of the previously prepared sodium sulfide, it was proceeded to the preparation of hydrogen sulfide used in the isotopic … Read More
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(The Anticitera mechanism, an analog computer built in Antigua to predict astronomical positions and eclipses. Algunas de las ciencias de las primeras civilizaciones fueron la astronomy y las mathematics) The history of science is the study of the evolution of … Read More
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Now I must add that I consider these changes beneficial. Let us indeed leave ponderable matter behind. What would my situation be with regard to light, and more generally electromagnetic facts, if my dimensions of space and time had remained … Read More
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Blaise Pascal (1623-1662) is not a philosopher: he is a scholar and an apologist for the Catholic religion. A scholar, he is in the tradition of mathematical and experimental physics which led from Galileo to Newton. An apologist, he is … Read More
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Figure 1.1 This image might be showing any number of things. It might be a whirlpool in a tank of water or perhaps a collage of paint and shiny beads done for art class. Without knowing the size of the … Read More
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We have just looked for how light could have the same speed for the fixed observer and for the moving observer: the deepening of this point revealed to us that a system S’, resulting from the splitting of a system … Read More
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Scientific disciplines (also called ”branches of science”, “sciences” or “fields of science”) are subdivisions of science and branches of knowledge that use a rigorous and systematic method to study a particular area of knowledge. Scientific disciplines are characterized by the … Read More
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What will happen when operators respectively placed at 0 and at A want to measure the speed of light by noting, on the clocks tuned together which are at these two points, the moment of departure, the moment of arrival, … Read More
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Today there are 6,800 reptile species on earth; the major groups are alligators and crocodiles, turtles, lizards, and snakes. Reptiles are tetrapods and amniotes, animals whose embryos are surrounded by an amniotic membrane. Today they are represented by four surviving … Read More
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The book is an overview of the major subfields and concepts in physics, including a brief outline of the history of physics and its subfields. Physics (from Greek from φυσικός (phusikos): natural, from φύσις (fysis): Nature) is the science of … Read More
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