An object has kinetic energy when itâs in motion. The amount of kinetic energy an object has depends on its mass and speed. Potential energy, on the other hand, is a stored energy when an object is at rest. It describes how much work the object could do if set into motion. Itâs an energy we can generally control. When an object is set into motion, its potential energy transforms into kinetic energy.
The Knights of Labor, the first national industrial union in the United States, was founded in Philadelphia on December 9, 1869, by Uriah Stephens (1821-82) and eight other Philadelphia garment cutters.
Flush with victory, the Knights drew in thousands of new members; within a year, 750,000 workers were united under the comprehensive umbrella of the Knights of Labor. But to a certain extant, the Knights' rapid success was also the cause of their downfall. In 1886, tens of thousands of newly-joined workers initiated labor actionsâbut only occasionally were the other members willing to walk out in support.