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.
Yes, Venus spins backwards compared to most of the other planets. It spins or rotates in the opposite direction that Earth rotates. This means that on Venus the Sun rises in the west and sets in the east. On Earth the Sun rises in the east and sets in the west.Venus also spins very slowly-only once every 243 Earth days. Venus is the slowest spinning planet in the Solar System. Actually, a day on Venus is longer than a year on Venus! A year on Venus (the time it takes for it to orbit the Sun) is 225 Earth days.enus also spins very slowly-only once every 243 Earth days. Venus is the slowest spinning planet in the Solar System. Actually, a day on Venus is longer than a year on Venus! A year on Venus (the time it takes for it to orbit the Sun) is 225 Earth days.