Oh my god. I hate this kind of stuff. When some idiot like this gets really hurt building a turbine it makes it seem like all diy wind turbine builders are stupid. One of my other hobbies is building pneumatic cannons. i am always very safe with the materials i use, the pressures that i run at (Usually only about 10% of the pressure) and wicked safe about firing them off. There are a lot of people who get hurt building pneumatic cannons and spud guns and even though it is actually a really cool project to show people i find myself not really wanting people to know that i do it just because of all of the horrible accidents that are associated with it.