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01:17:39 Lecture 3 - History of Planet Earth - ESM 120… Lecture 3 - History of Planet Earth - ESM 120 (Winter 2023)	Lecture 3 - History of Planet Earth - ESM 120 (Winter 2023) Lecture 3. Carl Sagan once stated, “We’re made of star stuff.” Today, we are going to discuss why that phrase is 100% true. This lecture, we will discuss a brief history of our… stellar nucleosynthesis cosmic abundance big bang (cosmological theory) elements of the universe isotopes earth elements planet star radiation sun water oxygen stars venus iron core hydrogen universe atmosphere energy helium lecture bang From Rebecca Hernandez 0 likes 126 plays 0
01:25:54 Phy129A-Class19.mp4 Phy129A-Class19.mp4	Phy129A-Class19.mp4 helium deuterium neutron bang universe nucleosynthesis neutrons temperature things reactions proton mass abundance density ratio physics protons elements point lot From Manuel Calderon de la Barca Sanchez 0 likes 22 plays 0
54:22 Lecture 3 - History of Planet Earth - ESM 120… Lecture 3 - History of Planet Earth - ESM 120 (Winter 2021)	Lecture 3 - History of Planet Earth - ESM 120 (Winter 2021) Lecture 3. Carl Sagan once stated, “We’re made of star stuff.” Today, we are going to discuss why that phrase is 100% true. This lecture, we will discuss a brief history of our… stellar nucleosynthesis earth earth history big bang (cosmological theory) elements biogeochemistry planet universe star hydrogen iron sun water stars differentiation matter venus energy core helium crust reactions nucleosynthesis abundance From Rebecca Hernandez 0 likes 88 plays 0