Galileo is known as the Father of Science, appropriately because he made many improvements to areas of math, physics, astronomy, and even philosophy in his lifetime. He has been known for his discoveries and improvements to the pendulum, military compass, telescope, thermometer, and microscope. One of the biggest impacts on his life was the theory of heliocentrism, the common fact now, that the earth and other planets revolve around the sun. The Roman Inquisition placed him under arrest for the later part of his life because the theory was considered to be blasphemous, but Galileo remained true to theory arguing that the theory was not contrary to scripture. He also published a wide variety in his lifetime.