What Was the Temperature of the Universe When a Typical

question 67

Essay

What was the temperature of the universe when a typical CBR photon was no longer able to spontaneously create a proton and antiproton pair? Note that a photon has an energy equal to ,the CBR at any point in time has a blackbody spectrum that peaks at ,and the mass of a single proton is .

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Definitions:

Characteristic Personality Traits

Features that are distinctive and describe consistent behaviors in a person across different situations and over time.

Primary Process

In psychoanalytic theory, the unconscious thought processes that are primitive and symbolic, driven by the pleasure principle.

Heredity

The passing on of physical or mental characteristics genetically from one generation to another.

Dominant Source

The primary or most influential point of information or authority within a context or system.