The directors of Iron Man 2 put a lot of thought into the science of their story. They attended to even small details, such three discovered by redditor blueintegral as s/he watched the movie. During the movie, Tony Stark examines the notebooks of his father, Howard Stark. They appear on the screen briefly. The notes inside are not random scribblings, but descriptions of physics.
Blueintegral created this image showing the science Easter eggs, including, at the bottom, a description of the...wait for it...Stark Effect.
-via The Geek Twins