In 1846, using mathematical predictions by French mathematician Urbain Le Verrier, German astronomer Johann Gottfried Galle became the first person to observe which planet?
The ans is - Neptune
Which planet has 5 rings that are named for the astronomers Johann Gottfried Galle, Urbain Le Verrier, William Lassell, François Arago and John Couch Adams?
Which 17th century French philosopher, mathematician, scientist, and writer showed, by using geometric construction and the law of refraction, that the angular radius of a rainbow is 42 degrees?
Which mathematician, astronomer and physicist is known in the West for his discoveries on light and vision, among other seminal scientific achievements, and as the father of modern optics?
