Amazing Mathematicians: A2-B1. Anna Trewin

He improved the design of the telescope and called it ‘Perspicullum’. 1610 Galileo published Starry Messenger. He looked at the mountains of the moon as well as Jupiter’s brightest four moons. He discovered The Phases of Venus. 1611 He became Chief Mathematician at Padua University. 1612 Galileo wrote Discourse on Floating Bodies. 1613 He wrote Letters on Sunspots. 1615 His Letter to Grand Duchess Christina was written. However, it was not published until 1636. 1616 The Catholic Church became angry with his ideas. They warned him about his Copernican beliefs and banned his writings. Galileo wrote Discourse on the Tides