62. A Vessel which emits a Sound when a Liquor is poured from it 86

63. A Water-Clock, made to govern the quantities of Liquid flowing

from a Vessel 87

64. A Drinking-Horn from which a Mixture of Wine and Water, or

pure Water may be made to flow alternately or together, at

pleasure 89

65. A Vessel from which Wine or Water may be made to flow

separately or mixed 90

The pneumatics of Hero of Alexandria · 第 57 / 110 题