With few exceptions, I greatly enjoy, and am interested in, things mechanical and electrical. One exception is below. I find these things to not only be ridiculous, but also counter-productive, from concept to actual use. We see landscaping crews of guys with big ones, gasoline powered, blowing dust, dirt, gravel, from one place to another, while putting a lot of lightweight stuff up into the air. Thus, they not only waste resources, gasoline, but pollute the air with fuel fumes, as well as dust and dirt! What homeowner would possibly want to have one of these? Thoughts? imp