The cross product a Ã b is defined as a vector c that is perpendicular to both a and b, with a direction given by the right-hand rule and a magnitude equal to the area of the parallelogram that the vectors span.
Contributed by Neal Dorst (HRD) The Atlantic hurricane season is officially from 1 June to 30 November. There is nothing magical in these dates, and hurricanes have occurred outside of these six months, but these dates were selected to encompass over 97% of tropical activity.
Hurricanes are intense low pressure areas that form over warm ocean waters in the summer and early fall. Hurricane intensity is based upon the highest sustained (1 minute average) wind speed the hurricane is producing. The Saffir-Simpson scale rates hurricane strength in this way from Category 1 to Category 5. These categories were chosen based upon the amount of damage that each category can produce. Intensity