In this lab, we explored the voltage that could be obtained using different designs of wind turbine blades. To do this, we used paper from Manila folders and aluminum which we folded and cut. We then attached each blade to a wooden dowel which could be attached to a plastic axis. Each axis could be mounted to one of two turbines, a verticals axis wind turbine or a horizontal wind turbine. Our first design was shaped like a spoon, but was incredibly faulty due to the air that could pass through the space where the long dowels were attached. Our second through forth designs used full, straight sheets which were bent slightly different ways around the edges. Our last design, unlike the others, was made of aluminum, and was in w pinwheel shape. This did extremely better than the others. Using our data, we found that if our blades had pockets for the air to catch in, they did much better. We noted that our third and forth designs did much better than the second because they were not completely flat, and the pinwheel had funnel-like blades which was much more efficient than previous designs. Pockets allow the air to catch and push the blades further for a longer period of time. This can also be explained with the equation, impulse equals force times time.