Ever had a problem with that one lousy tree limb that throws a huge shadow across your dish, preventing you from receiving one or more satellites? Well, here is your solution - just don't let go of any balloons while it's in use!
An article explaining this a bit: http://www.gizmag.com/killerdrone-chainsaw/42605/
An article explaining this a bit: http://www.gizmag.com/killerdrone-chainsaw/42605/