Article from Wired in 2010. You know the game, I know you know. Angry Birds. I have an attraction to games like this. But what about the physics? Do the birds have a constant vertical acceleration? Do the birds have a constant vertical acceleration? Do they have constant horizontal velocity? Let's find out, shall we? Oh, why would I do this? Why can't I just play the dumb game and move on. That is not how I roll. I will analyze this, and you can't stop me.