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To: reagandemocrat
-- ("penumbra" being the shadow of the moon that covers part of the earth during a solar eclipse --

Any shadow cast by an object lit by a light source that is larger than a point (and the sun is considered such, an "area" light source) has an "umbra" and a "penumbra." The "umbra" is fully shadowed, the penumbra is a region of transition from full shadow to no shadow.

23 posted on 02/11/2012 9:57:01 AM PST by Cboldt
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To: Cboldt

Thank you. That makes the “penumbra doctrine” even more absurd.


28 posted on 02/11/2012 10:34:15 AM PST by reagandemocrat (Roe v Wade = Dred Scott)
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