Aerodynamics

I rode my bike this morning with Kevin in the trailer. It's a warm day and the sun is shining brightly so I left the plastic window up with just the screen down for him. Unfortunately, there is only screening at the front of the trailer. This means that while I'm trying to gain momentum on the downhills to get up the uphills easier, Kevin is riding in style in nothing short of a parachute. Parachutes are built to overcome aerodynamics.