Investigations in Capillarity

The relation between the diameter of a tube and the weight of the drop which it delivers appears to have been first investigated by Tate, whose experiments led him to the conclusion that “other things being the same, the weight of a drop of liquid is proportional to the diameter of the tube in which it is formed.” Sufficient time must of course be allowed for the formation of the drops; otherwise no simple results can be expected. In Tate's experiments the period was never less than 40 seconds.