Black hole, definition and study; A-Z index of Cognitio. In astrophysics, a black hole is a celestial body with a gravitational field so intense that neither matter nor electromagnetic radiation can escape, i.e. a region of space time having a sufficiently large curvature,…
Vegetable, found the first on Mars! Original article by Alessandro Brizzi. To give the news was the researcher Scott Waring, who during the observation in the images taken by the Curiosity rover in the Crater Gale area of Mars, as well as having…
Rosetta stone, definition and study; A-Z index of Cognitio. The Rosetta Stone is an Egyptian granite stele that shows an inscription divided into registers, in three different spellings: hieroglyphic, demotic and ancient Greek. The inscription is the text of a Ptolemaic decree issued…
Stars, extraterrestrials are fond of it; Original article by Alessandro Brizzi. In 1962, Russian astrophysicist Nikolai Kardashev said that there were three types of advanced extraterrestrial civilizations; one that could collect the resources of the planets, one that could collect the energy of…
Angel, definition and study; A-Z index of Cognitio. In many religious traditions, an angel is a spiritual being who assists and serves God (or the gods) or is at the service of man along the path of his spiritual progress and his earthly…
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