Radius of Observable Universe (Correction)

A two-minute video corrects a slight error in the previous Khan Academy video about the observable universe. Sal points out that 300,000 years does not really have an impact on the number 13.7 billion, or the estimated time of the Big Bang.

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Grade
9th - 12th
Subjects
Science
1 more...
Resource Types
Videos
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Instructional Strategy
Flipped Classroom
Usage Permissions
Creative Commons
BY-NC-SA: 3.0
cc