ENVS 1060 Lecture Notes - Lecture 1: Subatomic Particle, Big Bang, Nebular Hypothesis

• School: University of Guelph
• Department: Environmental Sciences
• Course: ENVS 1060
• Professor: Steve Sadura

Document Summary

Origin of the universe look to the highlighted words in the beginning of the course for background knowledge. More distant stars look redder than those closer to us. Spreading behaviour: bomb example outer casing travel outward much faster than those inside the bomb. If we reverse the motions seen in the stars all known celestial bodies would cluster at one point in the universe about 13. 7 billion years ago giving rise to speculation that everything started as a giant explosion. Assumes that all matter was once concentrated in an extremely small space with high density. It was in a neutral state the particles (neutrons) were not electrically charged so they (cid:272)ould(cid:374)"t repel ea(cid:272)h other. Black holes: are places where the density of matter (and gravitational forces) is so great that not even light can escape. The first stars the origi(cid:374)al parti(cid:272)les fro(cid:373) the (cid:271)ig (cid:271)a(cid:374)g (cid:449)ere(cid:374)"t s(cid:272)attered u(cid:374)ifor(cid:373)ly throughout spa(cid:272)e.