Refracting telescope focus, results in a non-inverted and upright image. Galileo’s best telescope magnified objects about 30 times. Because of flaws in its design, such as the shape of the lens and the narrow field of view, the images were blurry and distorted. Despite these flaws, the telescope was still good enough for Galileo to explore the sky. The Galilean telescope could view the phases of Venus, and was able to see craters on the Moon and four moons orbiting Jupiter. Parallel rays of light from a distant object (y) would be brought to a focus in the focal plane of the
The Man Who Sold the Moon To solve the tougher financial problems, Harriman exploits commercial and political rivalries. He implies to the Moka-Coka company, for example, that rival soft drink maker 6+ plans to turn the Moon into a massive billboard, using a rocket to scatter black dust on the surface in patterns. To an anti-Communist associate, he suggests that the Russians may print the hammer and sickle across the face of the Moon if they get to it first. To a television network, he offers the Moon as a reliable and uncensorable broadcasting station. Harriman seeks to avoid government ownership of the Moon. As it