What marks the start of the big bang epoch. List 3 discoveries or events in which...

What marks the start of the big bang epoch. List 3 discoveries or events in which can be used to define this epoch? [15 points] [2 marks for the event, 2 marks for the date and person involved, 1 mark for the importance of the event]

Solutions

Expert Solution

The evolution and expansion in subsequent steps/orders are the marks of the starting of big bang epoch.

3 discoveries are:

Planck epoch

Grand unification epoch

Electroweak epoch

1. Planck epoch: Theorised to begin at 0 seconds, the time just before the Big Bang. It is explained via quantum mechanics, virtual particles and false vacuum.

2. Grand unification epoch: Occurs at 10^(-43) seconds after the Big Bang. the matter/antimatter still at infinitesimal small size with temperature around 10^(32) kelvin. It is believed at at this epoch the gravity was separated and creation began.

3. Electroweak epoch: At 10^(36) seconds after the Big Bang. The universe cooled down to 10^(28) kelvin that cooled down to 10,000 degrees and resulted in creation of strong nuclear forces, that are today observed between proton and neutron.

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genius_generous answered 1 year ago

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