“Fifteen years ago,” writes James Fallows, “in an article called ‘Throwing Like a Girl,’ I described the ‘kinetic chain’ involved in producing a ‘proper’ baseball throw — or a tennis stroke or serve, or a football pass, or even a swing with a golf club or a baseball bat. The idea of the ‘chain’ is that energy passes progressively from the larger and heavier parts of the body to the smaller, lighter parts, and as it does the velocity eventually imparted to the ball (racket, bat) continues to increase.”

Why am I quoting Fallows on how to throw a baseball? Because this slow-motion video of Tim Lincecum doing it is absolutely amazing. Fallows calls it “the clearest possible visual illustration of how the kinetic chain works,” but I’m primarily struck by how different it looks from how normal people throw: