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Cosmology and Astronomy: Precession Causing Perihelion to Happen Later
Conditional Remix & Share Permitted
CC BY-NC-SA
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This 12-minute video lesson clarifies the effect of axial precession on the calendar and the date of perihelion and aphelion. [Cosmology and Astronomy playlist: Lesson 73 of 85]

Subject:
Earth and Space Science
Physics
Material Type:
Lecture
Provider:
Khan Academy
Provider Set:
Khan Academy
Author:
Salman Khan
Date Added:
02/20/2011
WNBA Supermom
Read the Fine Print
Educational Use
Rating

In this video segment from TV411, WNBA player Olympia Scott Richardson discusses her techniques for effective time management.

Subject:
Mathematics
Physics
Material Type:
Lecture
Provider:
PBS LearningMedia
Author:
U.S. Department of Education
WNET
Date Added:
09/23/2008