I thought this was a cool demonstration of the Magnus effect:
The video was pretty informative and worth checking out if you liked what you saw above:
Anyone who knows more about physics/alternative energy/general what-have-you please feel free to chime in!
EDIT: Evidently y'all are sensitive to the fact that things going viral get posted here. Besides which, science-y things get posted around here all the time. It's still the OT-season and I checked to make sure it hadn't already been posted. I found it to be some really cool science and thought I'd share it with like-minded folk. Plus, I wanted to see how Magnus responded and he did not dissapoint.