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.
Color image of Mercury. Image credit: NASA. Mercury is the smallest planet in the Solar System and orbits the Sun every 87.969 Earth days. At this time it does not have a moon, but some scientists speculate that it may have had a moon in the ancient past.It is their contention that the orbit of Mercuryâs moon decayed and it impacted the surface of the planet.olor image of Mercury. Image credit: NASA. Mercury is the smallest planet in the Solar System and orbits the Sun every 87.969 Earth days. At this time it does not have a moon, but some scientists speculate that it may have had a moon in the ancient past.