AST101H1 Chapter : AST101- chp 3 notes.docx

• School: UTSG
• Department: Astronomy & Astrophysics
• Course: AST101H1
• Professor: Michael Reid

Document Summary

In what ways do all humans use scientific thinking? comes naturally to us science is a way of learning about nature through careful observation and trial-and-error experiments. We all learn something new and witness the unexpected. Modern scientists trained to organize their thinking in a way that makes it easier for them to share their discoveries. Used changing positions of the sun, moon, and stars to keep track of time. Length of our day is the time it takes the sun to make one full circuit of the. Discovered that the orientation of the crescent horns relative to the. Length of the month comes from the moon"s cycle of phases. Our year is based on the cycle of the seasons. The 7 days a week were named after the 7 naked eye objects that appear to. During daytime told the time by observing the suns path through the sky.