TOPIC:

E2-22 UMBRA AND PENUMBRA 10 years 9 months ago #77

admin Topic Author Offline Administrator Posts: 189 Thank you received: 0	ID Code: E2-22 Purpose: Illustrates shadow umbra and penumbra Description: The foam ball casts a shadow of each of the two point sources in the box. The umbra is where the two shadows overlap and the penumbra is where only one source is shadowed. Availability: Available Check this box to be notified of replies to this topic. Note: BBcode and smileys are still usable.
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