When Did the Universe Cool to a Temperature of 3

question 74

Multiple Choice

When did the universe cool to a temperature of 3 K?

• A) 1 second after the start of the Big Bang, when pair production ceased
• B) 500,000 years after the Big Bang, when the universe became transparent to radiation
• C) 3 minutes after the start of the Big Bang, when primordial nuclear reactions ceased
• D) very recently

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Definitions:

Ringelmann Effect

The phenomenon where individual productivity decreases as the size of a group increases, due to factors like reduced coordination or motivation.

Dominant vs. Nondominant

A comparison between the more powerful, prevailing, or influential (dominant) side or aspect and the less powerful, subordinate, or less influential (nondominant) side or aspect.

Social Facilitation

The improvement in performance observed when individuals perform tasks in the presence of others, as compared to when they perform the same tasks alone.

Meta-Analysis

A statistical technique that combines the results of multiple studies to determine the overall effect size or consensus findings across various research studies.