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.
Rating Newest Oldest. Best Answer: Venus has a slow retrograde (backward) rotation. Uranus also has a retrograde rotation. It is also on it's back. HOWEVER You may be getting rotation confused with revolution. Rotation is a planet's spin on it's axis and revolution is it's motion around a star. All planets revolve around the Sun in a prograde (forward) motion. The vast majority of moons also revolve around their planets in a prograde motion. A notable exception is Neptune's moon, Triton.