One of the most promising areas are in heat ducts and heat sinks and other internal parts of engines and turbines and the like. With 3D printing you can for example produce cooling ducts within the part itself this is not possible with other technologies.
Basketball Positions. To play a proper basketball game, you need 10 people, 5 on each side. Sometimes there are a few extra people for substitution when their teammates get tired or injured. Each player plays a different position in the team, this normally depends on the height and strength and weaknesses of the player.
Point guard: The point guard is the team leader and play caller on the basketball court. A point guard needs good ball handling skills, passing skills as well as strong leadership and decision making skills. Traditionally basketball point guards were small, fast players and this is still often the case.