It's a beautiful day to go outside with a kite or a balloon, and compute how wind speed alters their flight.

Traditionally, slope-angle readings have been obtained by measurement between identifiable breaks of slope, but this method includes a large subjective element and imposes restrictions on subsequent ...

Maximum stable heights of steep, friable loess slopes of western Iowa and western Tennessee were found to relate to the soil density and shear strength in accord with the sliding-wedge method of ...