NATS 1745 Study Guide - Final Guide: Big Ten Conference, Eyepiece, Refraction

• School: York University
• Department: Natural Science
• Course: NATS 1745
• Professor: Robin Metcalfe

Document Summary

Refraction is the bending of light rays as they pass from one medium to another (air to glass). The primary lens sends more light to eye would receive on its own. Galileo proved all objects of different mass fall at the same rate. Galileo saw the surface of the moon revealed that celestial bodies are not perfect unblemished spheres (rough, uneven). Galileo discover that venus has similar phase to the moon"s. Venus is full, it appears smaller in size, when it is thin crescent it appears larger in size. The discovery shows that ptolemaic model obsolete, since gibbouses aren"t possible if venus never reaches the sun opposite side; no explanation if the sun and planets orbited the earth. Venus is full, as it appears smaller in size. Galileo saw appendages on either side of saturn he thought they were bumps of some sort attached to the sides of the planet, like ears.