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This channel contains a complete list of physics videos, as well as hundreds of chemistry, astronomy, math, and mechanical engineering videos.

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In this video I will explain what is the The Big Bang and the age of our universe.

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In this video I will explain how Hubble discovered our universe is expanding and the age of our universe.

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In this video I will explain how Alpher and Herman discovered our early universe is hot.

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In this video I will explain how Penzias and Wilson discovered the cosmic background radiation.

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In this video I will explain how Dicke and Peebles explained that radiation is stretched with the expansion of the universe.

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In this video I will introduce the Cobe satellite and explain the CMB, Cosmic Microwave Background.

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In this video I will explain the cosmic background radiation and the blue- and red-shift.

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In this video I will explain E=mc^2 and how it calculates the temperature of the early universe.

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In this video I will explain Olber's paradox answering "Is the universe finite or infinite?"

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In this video I will explain Einstein's biggest "blunder". Einstein was wrong about being "wrong".

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In this video I will explain the cosmological constant and answer the question "Is there a center to the universe?"

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In this video I will explain and answer "How do we know the Big Band happened?"

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In this video I will explain the Plank Era where all four forces are unified into a super force.

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In this video I will explain the GUT Era where gravity separates from the super force.

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In this video I will explain the Electro Weak Era where the Nuclear Strong Force separated form the Grand Unified Force.

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In this video I will explain the Inflationary Period where the universe expanded by a factor of 10^50.

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In this video I will explain the Quark Era where the electroweak force separates..

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In this video I will explain what is and what happened during baryogenesis.

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In this video I will explain the Hadron Era (1 second after the creation of the universe) when the quark-gluon plasma cooled sufficiently for hadrons to form.

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In this video I will explain the Lepton Era where leptons dominated the mass of the universe.