Earth Science: Lecture 1 - Introduction to Earth Science

Additional videos to watch before Lecture 2: Interactive scale of the Universe: http://htwins.net/scale2/ 1) Scale of the Universe video: https://www.seevid.ir/fa/w/nxs5wye0JXs 2) Star sizes video: https://www.seevid.ir/fa/w/kBkNhMfrxuk 3) Asteroid discovery video: https://www.seevid.ir/fa/w/BKKg4lZ_o-Y 4) The most astounding fact video: https://www.seevid.ir/fa/w/9D05ej8u-gU 5) Why is the milk gone video: https://www.seevid.ir/fa/w/KjeKiIa7XEk 6) You are here video: https://www.seevid.ir/fa/w/jaJ-xDLB_C8 This is the first video I have recorded in quite some time. I apologize for the excess "uhm" and "uhh" sounds. Those should be worked out in time!