So, just cause it's the sweet space between Christmas and New Year's doesn't mean you can't still learn new, cool things — like physics.
Today's coolness is the Magnus effect, which is all about how spinning, flying things get driven sideways.
You've seen this in the way spin on a tennis ball can make it do crazy things. But it can be used for a lot of things other than sports, including propelling new kinds of "sailing" ships — or even making weird, rotating cylinder airplanes.
Adam Frank is a co-founder of the 13.7 blog, an astrophysics professor at the University of Rochester, a book author and a self-described "evangelist of science." You can keep up with more of what Adam is thinking on Facebook and Twitter:@adamfrank4