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.
The Constitution was signed by 39 delegates on September 17, 1787, at the Pennsylvania State House, now known as Independence Hall, in Philadelphia. Three delegates were present but refused to sign, in part because of the absence of a bill of rights: George Mason, Edmund Randolph, and Elbridge Gerry.he 10 amendments that are now known as the Bill of Rights were ratified on December 15, 1791, thus becoming a part of the Constitution.