Robison's Manual of radio telegraphy and telephony for the use of naval electricians (1918)
Robison, S. S. (Samuel Shelburne), b. 1867, United States Naval Institute, Todd, David Wooster, Hooper, Stanford Caldwell · Annapolis, Md. : The United States Naval Institute · leaf 44
e water in fig. 24 is due to its inertia. Inertiais a property of all bodies and is in amount proportional to their weight.It is represented by their resistance to change of condition, either ofmotion or of rest. The water in the first vessel falls by the action of gravity/. Once inmotion its… … S ^
