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edit (khoa): Adjunction, Allegory,Alliteration, Allusion, Antithesis,Apostrophe, Climax, Euphemism,Hyperbole, Irony, Metaphor, Metonymy,Onomatopoeia, Oxymoron, Personification,Simile, Synecdoche

Discovered on September 23, 1846, by John Couch Adams. Neptune was the first planet found by mathematical prediction rather than by observation. Unexpected changes in the orbit of Uranus led astronomers to deduce that its orbit was subject to gravitational perturbation by an unknown planet. Neptune was subsequently found within a degree of its predicted position.

Adams worked on his calculations at Cambridge and his home in Cornwall UK. Neptune was discovered on September 23, 1846 by Johann Gottfried Galle, of the Berlin Observatory, and Louis d'Arrest, an astronomy student, through mathematical predictions made by Urbain Jean Joseph Le Verrier