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.
1 Find out about the 39 delegates who signed the Constitution on September 17, 1787.  Explore in this simulation how the members of the Constitutional Convention might have felt as they gathered in Philadelphia's Independence Hall and began the arduous and memorable task of writing the United States Constitution.