In considering the forces that produce derailment the total mass of the vehicle or locomotive may be supposed to be concentrated at its centre of gravity.
The centre of gravity in Hebrew religion was shifted from ceremonial observance and local sacra to righteous conduct.
Its nearness to Washington, the material and manufacturing resources concentrated in it, and the moral importance attached to its possession by both sides, caused it to be regarded as the centre of gravity of the military operations in the east to which the greatest leaders and the finest armies were devoted from 1861 to 1865.
But the triumph of the navy in 480 and the great expansion of commerce and industry had definitely shifted the political centre of gravity from the yeoman class of moderate democrats to the more radical party usually stigmatized as the " sailor rabble."
Though this prince continued to develop the city, giving it a municipality in 1866 1 and new harbour works in 1871-1878, he developed Cairo still more; and the centre of gravity definitely shifted to the inland capital.
