Eyeglasses made of nylon were introduced in the late 1940s. Because of brittleness and other problems, eyeglass manufacturers switched to blended nylon (polyamides, co-polyamides and gliamides). Today's blended nylon frames are both strong and lightweight.
Venus is the closest size to Earth and is sometimes called Earth's sister planet.. Its diameter is 95% of Earth's but its mass is only 81% as much.
The planet that can be closest to earth when we're both in the same part of our orbits is Venus. The minimum distance between us and Venus is about 25.5 million miles, or about 28% of the distance from earth to the sun.The next nearest possible is Mars, whose distance from Earth can be as small as 48.5 million miles.enus is closer to the sun. The order of the planets is (from the Sun); Mercury, Venus, Earth, Mars, (asteroid belt), Jupiter, Saturn, Uranus and Neptune. The new Solar System â¦ Model classifies Pluto as the second largest minor planet in the solar system with Eris as the largest. 9 people found this useful.