1. How does one figure the amount of sail needed to produce one horsepower on the old sailing ships?

2. Does the same formula apply when looking at square feet of surface exposed to the wild on a wind mill?

3. Give the formulas relative to the wind speed.

3. What Factors come into play to necessitate the slow turning of large wind mills?

4. It would seem when watching wind generating farms all the mills are turning at the same speed which seems rather slow. How does that factor in?

5. in Theory, what would happen if they could withstand twice that speed of rotation without damaging the equipment?