physique chimie college lycee
SHADOWS

 

SHADOWS - ECLIPSE

Umbra and Penumbra

 

 

Description: interactive flash animation and video to understand what happens during eclipses. Learn the difference between umbra and penumbra by watching the video.

 

Definition

Penumbra: region in which only a portion of the light source is obscured by the occluding body. An observer in the penumbra experiences a partial eclipse.

 

flash animation        .exe (Windows)        .app (Mac)        video

 

 

 

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