History of Eyeglasses and Sunglasses. The inventor of the first spectacle lenses is unknown. Roman tragedian Seneca (4 BC -65AD) is said to have used a glass globe of water as a magnifier to read ''all the books of Rome''. It's been reported that monks in the middle ages used glass spheres as magnifying glasses to read.
exists and is an alternate of . The Planet Venus has the slowest rotation rate because one day there is longer than the year on Venus or longer than its revolution around the sun. The Planet Venus has the slowest rotation rate because one day there is longer than the year on Venus or longer than its revolution around the sun.
Venus and Uranus. If viewed from above the Sun's north pole, all of the planets are orbiting in a counter-clockwise direction; but while most planets also rotate counter-clockwise, Venus and Uranus rotate clockwise in retrograde rotation. Pluto (Dwarf Planet) also rotates in a retrograde (clockwise) direction. Only Venus and Uranus rotate clockwise. All the others rotate counterclockwise. Remember that the definition of clockwise here means as seen from high above the Earth's North pole.