Isaac Newton on the action at a distance in gravity: With or without God?

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The interpretation of Isaac Newton’s texts has sparked controversy to this day. One of the most heated debates relates to the action between two bodies distant from each other (the gravitational attraction), and to what extent Newton involved God in … Read More

Causal Loops in Time Travel

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About the possibility of time traveling based on several specialized works, including those of Nicholas J. J. Smith (“Time Travel“), William Grey (”Troubles with Time Travel”), Ulrich Meyer (”Explaining causal loops”), Simon Keller and Michael Nelson (”Presentists should believe in … Read More

Reptiles – Crocodiles, Alligators, Lizards, Snakes, Turtles

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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

Physics Help

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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

Aristotle works

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Aristotle was born in 385 BC in Stagira, a city located on the northern coast of the Aegean, east of Chalkidiki. He could not be influenced by his father, who was a doctor, since he was very young when he … Read More

Henri Bergson: Half-relativity – Michelson-Morley experiment (7) – Clock simultaneity

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How do you adjust two clocks located in different places to each other? By communication established between the two people responsible for the adjustment. However, there is no instantaneous communication; and, since all transmission takes time, we had to choose … Read More

Henri Bergson: Half-relativity – Michelson-Morley experiment (6) – Measuring time

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More generally, let us still call S a system immobile in the ether, and S’ a double of this system, which first coincided with it and then detaches itself in a straight line with the speed v. While S’ contracts … Read More

Henri Bergson: Half-relativity – Michelson-Morley experiment (5) – The speed of light

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But we should also know why we ourselves, in our turn, measuring the speed of light by terrestrial experiments such as those of Fizeau or Foucault, we always find the same number c, whatever the speed of the Earth relative … Read More

The Science of Climate Change

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Sfetcu, Nicolae (2023), The Science of Climate Change, MultiMedia, DOI: 10.13140/RG.2.2.25387.62247, https://www.telework.ro/en/the-science-of-climate-change/   Abstract Climate change is one of the most pressing challenges facing our planet today. Climate change science is a multidisciplinary field that studies the long-term patterns and … Read More

Henri Bergson: Half-relativity – Michelson-Morley experiment (4)

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But we should also know why we ourselves, in our turn, measuring the speed of light by terrestrial experiments such as those of Fizeau or Foucault, we always find the same number c, whatever the speed of the Earth relative … Read More

Fish & Fishing

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A detailed guide of everything you want and need to know about fish. A fish is a water-dwelling vertebrate with gills that doesn”t change form, as amphibians do, during its life. Most are cold-blooded, though some (such as some species … Read More

Presocratics – Milesian physics (1)

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In the first period, the Hellenic period which ended with the death of Alexander (323 BC), philosophy developed in Greek countries and successively in various centers: this succession corresponds to political vicissitudes. It was born in the 6th century in … Read More

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