Is there even a shadow of a doubt?

I was thinking the same thing, but here's my guess:

-Cold, foggy night/morning = frost forming

-Cloudy until early-morning so the sun doesn't warm the shingles

-Clouds clear up a bit by mid-morning, and the sun rapidly warms up the shingles, leading to the frost evaporating quickly relative to the shadow's motion

Ooookay, got a chuckle out of me man, thanks.

Maybe his neighbor is a climate controlling liberal?

stupid sexy Sun

WHAT COULD HAVE CAUSED THIS.

AKSHUALLY comparing shadows across the Earth is a great way to prove it is in fact an oblate spheroid. The Greek mathematician Eratosthenes used shadows to calculate the size of the Earth over 2000 years ago and he got pretty damn close. He didn't need to prove the Earth was round, because people weren't idiots like some are these days.

I'm guessing it's more like -5