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Published on Sep 22, 2009
This short animation shows how the Earth remains tilted as it revolves around the Sun. This tilt is the cause of our seasons - when the Sun is shining directly down on the Northern Hemisphere (when Earth is to the left here) it's Summer everywhere in the Northern Hemisphere and Winter for everyone in the Southern Hemisphere. Half a year later, (when the Earth is on the right side of the screen) the seasons are reversed. The Sun shines directly down on the Sourthern Hemisphere making them have Summer, while it's Winter in the North.
I have also created a version of this you can watch with 3D glasses. Please do a search for "Earth Orbit - Anaglyph."
For more information, requests for usage or anyone who likes it please visit my website to contact me. www.bradfreese.com Note: Classroom teachers / any other noncommercial work please feel free to use this animation without restrictions!