| Piú votate - The Universe Inside |
Earth_Impact_Craters_-_Gosses_Bluff_Crater_-_Australia.jpgGosses Bluff Crater (Australia)156 visiteSituato nel Northern Territory meridionale, l'imponente cratere meteorico Gosses Bluff ha un diametro di 5 km e un'altezza del bordo di 200 metri. Il sito e' noto come Tnorala agli aborigeni occidentali di Arrernte ed e' un luogo sacro.MareKromium
(3 voti)
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Cydonia_Fantasy.jpgA Martian Fantasy: Cydonia188 visite"Einstein creò quasi da solo la Relatività Generale e svolse una parte importante nello sviluppo della Meccanica Quantistica. Il suo pensiero su quest’ultima fu compendiato nella frase: "Dio non gioca a dadi". Tutto sembra indicare, però, che Dio sia un giocatore inveterato e che non perda occasione di lanciare i dadi".
Stephen Hawking - "Buchi Neri e Universi Neonati" (AD 1993)MareKromium
(3 voti)
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FireRainbow_Harbig_960.jpgNice...122 visite“La Guerra di Religione: in pratica vi siete uccisi, vi state uccidendo e vi ucciderete per decidere chi abbia l'Amico Immaginario migliore"
Richard JeniMareKromium
(3 voti)
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Dark_Matter~0.jpgDark Matter156 visiteDark matter is a form of matter thought to account for approximately 85% of the matter in the universe and about a quarter of its total mass–energy density or about 2.241×108722,27 kg/m3. Its presence is implied in a variety of astrophysical observations, including gravitational effects that cannot be explained by accepted theories of gravity unless more matter is present than can be seen. For this reason, most experts think that dark matter is abundant in the universe and that it has had a strong influence on its structure and evolution. Dark matter is called dark because it does not appear to interact with the electromagnetic field, which means it does not absorb, reflect or emit electromagnetic radiation, and is therefore difficult to detect.
Primary evidence for dark matter comes from calculations showing that many galaxies would fly apart, or that they would not have formed or would not move as they do, if they did not contain a large amount of unseen matter. Other lines of evidence include observations in gravitational lensing and in the cosmic microwave background, along with astronomical observations of the observable universe's current structure, the formation and evolution of galaxies, mass location during galactic collisions and the motion of galaxies within galaxy clusters. In the standard Lambda-CDM model of cosmology, the total mass–energy of the universe contains 5% ordinary matter and energy, 27% dark matter and 68% of a form of energy known as dark energy. Thus, dark matter constitutes 85% of total mass, while dark energy plus dark matter constitute 95% of total mass–energy content.
Because dark matter has not yet been observed directly, if it exists, it must barely interact with ordinary baryonic matter and radiation, except through gravity. Most dark matter is thought to be non-baryonic in nature; it may be composed of some as-yet undiscovered subatomic particles. MareKromium
(3 voti)
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Jupiter_and_Saturn.jpgGreat Conjunction136 visiteCaption NASA:"It was time for their close-up. Two days ago Jupiter and Saturn passed a tenth of a degree from each other in what is known a Great Conjunction. Although the two planets pass each other on the sky every 20 years, this was the closest pass in nearly four centuries. Taken early in day of the Great Conjunction, the featured multiple-exposure combination captures not only both giant planets in a single frame, but also Jupiter's four largest moons (left to right) Callisto, Ganymede, Io, and Europa - and Saturn's largest moon Titan. If you look very closely, the clear Chilescope image even captures Jupiter's Great Red Spot. The now-separating planets can still be seen remarkably close - within about a degree -- as they set just after the Sun, toward the west, each night for the remainder of the year".
Buon Natale a Tutti, dall'infima ed ormai disumana Terra, sino alle Stelle ed all'Infinito.MareKromium
(3 voti)
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Earth_and_Moon.gifMother and Daughter...130 visiteA NASA camera aboard the Deep Space Climate Observatory (DSCOVR) satellite captured a unique view of the Moon as it moved in front of the sunlit side of Earth last month.
The series of test images shows the fully illuminated “dark side” of the Moon that is never visible from Earth.
The images were captured by NASA’s Earth Polychromatic Imaging Camera (EPIC), a four megapixel CCD camera and telescope on the DSCOVR satellite orbiting 1 MMs from Earth. From its position between the Sun and Earth, DSCOVR conducts its primary mission of real-time solar wind monitoring for the National Oceanic and Atmospheric Administration (NOAA).MareKromium
(3 voti)
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Grigna-1.jpgRosenrot (by Odette Casile)166 visite"...Non rimpiango alcune persone che ho perso col tempo, ma rimpiango il tempo che ho perso con loro; poiché le persone non mi appartenevano, ma gli anni vissuti (con loro), sì..." (trad. libera)
Dr Carl Gustav Jung
MareKromium
(3 voti)
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Grigna-2019-11-11_at_08_34_52.gifOne "Clear Day" to remember... (by Tatiana Balbiani in Fienga)181 visite"...Se saprai starmi vicino,
E potremo essere diversi,
Se il sole illuminerà entrambi
Senza che le nostre ombre si sovrappongano,
Se riusciremo ad essere noi, in mezzo al mondo
E insieme al mondo, piangere, ridere, vivere.
Se ogni giorno sarà scoprire quello che siamo
E non il ricordo di come eravamo,
Se sapremo darci l'un l'altro
Senza sapere chi sarà il primo e chi l'ultimo
Se il tuo corpo canterà con il mio perché insieme è gioia...
Allora sarà amore
E non sarà stato vano aspettarsi tanto..."
(Pablo Neruda)MareKromium
(3 voti)
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Helene-PIA10544.jpgDistant Sun and Helene (by Lunar Explorer Italia)89 visitenessun commentoMareKromium
(3 voti)
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M_1_-_Crab_Hubble_998.jpgThe Crab...215 visiteSe in meccanica quantistica non hai niente, avrai pur sempre qualcosa.
Lawrence KraussMareKromium
(2 voti)
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Grigna-WhatsApp_Image_2019-11-16_at_22_27_10_(4).jpgEternity does not mean Forever (by Giovanni Casile)146 visite"...C'è chi crede di sapere, c'è chi sa di non sapere, c'è chi dice di sapere e non sa, e c'è chi veramente sa e non lo dice...".
Luciano Meran DonatoniMareKromium
(2 voti)
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Dyson_Swarm_-_03.jpgThe Dyson Sphere71 visiteHow It Works: each satellite in the Swarm absorbs or reflects the star’s sunlight and beams it to where it is needed—such as to an inhabited planet or orbital space stations.
Uses: the captured energy could power an entire civilization, propel massive spaceships using photon sails, or run planetary-scale supercomputers and artificial intelligence networks.
Materials: constructing a comprehensive Swarm requires a staggering amount of raw materials. Theorists suggest that disassembling an entire rocky planet, like Mercury, could provide enough mass to build the initial stages of a Swarm.
Gradual Build: our Civilization wouldn't build a full Swarm all at once. We would likely start with a "proto-swarm" consisting of space-based solar arrays, expanding it over thousands of years.MareKromium
(1 voti)
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