Complete Proof in Three Short Sentences

During a lunar eclipse, the Earth visibly casts its shadow over the moon, a phenomenon that has been observed and recorded for thousands of years . No matter where the moon appears to be in the sky, the shadow that the Earth casts upon it is always circular. There is only one shape that always casts a circular shadow--a sphere.

Unless a lunar eclipse is not caused by the Earth's shadow obscuring the moon.

Also, those sentences were actually very long.

Also, those sentences were actually very long.

So... You're stumped?

Quote from: General Douchebag on May 30, 2010, 12:38:28 PM

Also, those sentences were actually very long.

So... You're stumped?

No, I'm betrayed. You lied to me, man. I thought we were friends.

Unless a lunar eclipse is not caused by the Earth's shadow obscuring the moon.

Has anyone ever made a drawing (doesn't even need to be a scale drawing) of how the infamous shadow object could cast both penumbral and umbral shadows on the moon in such a way as they would be visible from the surface of the earth?  If not, would any FE'er be willing to give it a shot?  I'm seriously interested in seeing an illustration of this concept.

Quote from: Roundy the Truthinessist on May 30, 2010, 12:24:11 PM

Unless a lunar eclipse is not caused by the Earth's shadow obscuring the moon.

Has anyone ever made a drawing (doesn't even need to be a scale drawing) of how the infamous shadow object could cast both penumbral and umbral shadows on the moon in such a way as they would be visible from the surface of the earth?  If not, would any FE'er be willing to give it a shot?  I'm seriously interested in seeing an illustration of this concept.

Be reasonable.  Don't imply that a FE'er could defend their case by putting a minute amount of effort into drawing a theoretical drawing of something.  Like a map?

Quote from: Roundy the Truthinessist on May 30, 2010, 12:24:11 PM

Unless a lunar eclipse is not caused by the Earth's shadow obscuring the moon.

Has anyone ever made a drawing (doesn't even need to be a scale drawing) of how the infamous shadow object could cast both penumbral and umbral shadows on the moon in such a way as they would be visible from the surface of the earth?  If not, would any FE'er be willing to give it a shot?  I'm seriously interested in seeing an illustration of this concept.

You mean why we can still see the moon when it's completely engulfed by the Earth's shadow?  Oh, that's because, even though it's shaded out, it's still actually bright enough to be visible against the darker background of outer space.

Quote from: markjo on May 30, 2010, 05:46:39 PM

Quote from: Roundy the Truthinessist on May 30, 2010, 12:24:11 PM

Unless a lunar eclipse is not caused by the Earth's shadow obscuring the moon.

Has anyone ever made a drawing (doesn't even need to be a scale drawing) of how the infamous shadow object could cast both penumbral and umbral shadows on the moon in such a way as they would be visible from the surface of the earth?  If not, would any FE'er be willing to give it a shot?  I'm seriously interested in seeing an illustration of this concept.

You mean why we can still see the moon when it's completely engulfed by the Earth's shadow?  Oh, that's because, even though it's shaded out, it's still actually bright enough to be visible against the darker background of outer space.

No, I mean an illustration of the alignment of the sun, shadow object and moon in such a manner that a lunar eclipse is visible from the surface of a flat earth.

Something like this but using the Sun, Flat Earth, Moon and shadow object.

http://en.wikipedia.org/wiki/File:Geometry_of_a_Lunar_Eclipse.svg