PHYS 1901 Chapter : Planetary Astronomy Reading Notes
Document Summary
Astronomy was built on the need to explore and the need to understand. Most of the things our bodies are made up of were created billions of years ago in the centre of a long vanished star. Everything on earth embodies atoms from other parts of the universe. The belief in myth"s slowly diminished, and people starting thinking critically about themselves and the universe. A theory can be wrong by a single wrong prediction. Modern scientific theories share several characteristics: they must be testable, tested, simple, and elegant. Electromagnetic= energy is carried in the form of rapidly fluctuating electric and magnetic fields.
