A. Because every part of the drop is equally balanced; and, therefore, there is no cause why one part of the drop should be further from the centre than another.
Q. Why is the dew-drop on a broad leaf sometimes flattened?
A. Whenever two or more drops of dew roll together, they make one large spheroid (or flattened drop).
Q. Why will DEW-DROPS ROLL ABOUT CABBAGE-PLANTS, POPPIES, &c. without wetting the surface?
A. The leaves of cabbages and poppies are covered with a very fine powder; and the dew-drop rolls over this fine powder, as a drop of rain over dust, without wetting the surface.
Q. Why does not the drop of rain wet the dust over which it rolls?
A. Because it is driven from grain to grain by capillary repulsion.
Q. Why does not the dew-drop wet the powder of the cabbage-plant?
A. Because it is driven from grain to grain by capillary repulsion.