Johannes Kepler was the founder of celestial mechanics and was the first person to design eyeglasses for near and far-nearsightedness. He made many other contributions to the field of science.
Kepler was born in 1571 and he grew up to become a prominent mathematician. During the 30-Years War, he was forced to seek refuge and he began working with an astronomer named Tycho Brahe. Kepler published several works during his lifetime, including "Stereometrica Doliorum" which revolves around integral calculus. Kepler was also the first person to explain to the scientific world that the moon affects the tides. He also came up with the year Christ was born.Learn More
Galileo Galilei is credited with discovering four of Jupiter's moons. He made this and many other discoveries in 1610 after building his first telescope.Full Answer >
Radio telescopes are useful in astronomy because radio waves can be observed any time of the day or night. Radio waves are also not distorted by the Earth's atmosphere or by gas and dust.Full Answer >
There is no air in space because there is no gravity to condense the molecules of gases found there into air. On Earth, gravity holds nitrogen, oxygen and the other gases that compose the atmosphere together, but only to about 60 miles above the surface.Full Answer >
There is a small amount of gravity in space. This tiny amount of gravity is what scientists call microgravity.Full Answer >