Equipment users can detect cavitation audibly, visually, by acoustical instrumentation, by machine vibration sensors, through sonoluminescence measurement or by a decrease or change in performance from that produced under single-phase flow conditions (for example, loss of flow, rigidity and response).
The members of the Constitutional Convention signed the United States Constitution on September 17, 1787 in Philadelphia, Pennsylvania. The Constitutional Convention convened in response to dissatisfaction with the Articles of Confederation and the need for a strong centralized government.
COURTESY NATIONAL CONSTITUTION CENTER. Signers' Hall in the National Constitution Center features life-size statues of the men who helped write and, and who signed, the U.S. Constitution. Left to right: Pennsylvania delegates Robert Morris (seated), George Clymer, Benjamin Franklin (seated), and Gouverneur Morris.his document is as important to the country today as it was when it was first signed on September 17, 1787. The Constitution established our national government and lists the rights of Americans.