This is just...this is a troll thing, right? There's no one who seriously thinks this is a good argument?
Well, you have two choices here....
1/ Believe that what Barbarian says is true... but that it is only true for the moon when the sun is behind it...However, remember that, in his diagram, the "penumbra" is still the same size or smaller than the physical moon, which still contradicts simple physics of light.
2/ Test it for yourself.. go in a dark room hold up a ball and shine a light on it.. see if you can get a shadow that is smaller than the object creating it....
The world of "science" tries to bend the rules of this physical universe when they don't line up with the dogma of their religion.
However, they are the laws that God created and they are the laws that cannot be broken.
So, go ahead, see for yourself, it's a fact of this universe. The moon's shadow must be much bigger OR the moon is much smaller itself.
Also, the direction that the shadow moved.... Ya... it's backward.
Standing on the earth, watching the eclipse, the moon moves faster across the sky than the sun. They both move east to west. The moon has to approach from the east. The sun darkens on the eastern side first. The shadow MUST fall on the eastern part of the earth and move to the west. This... is not what we see...
The shadow on the earth is too small and moves in the wrong direction. That is an observable, testable and repeatable event.