Gratz PA â September â Gratz Fair. Gratz Fair. The Gratz Fair is an annual event that usually starts the second Sunday after Labor Day and runs for 7 days. DESCRIPTION: The Gratz Fair always begins the second Sunday after Labor Day and runs for 7 days.
Freebase(0.00 / 0 votes)Rate this definition: PiÃ¨ce de rÃ©sistance is a French term, also called plat de rÃ©sistance in France, translated into English literally as piece of resistance, referring to the best part or feature of something, a showpiece, or highlight.
Mathematical Nature of Resistance. Resistance is a numerical quantity that can be measured and expressed mathematically. The standard metric unit for resistance is the ohm, represented by the Greek letter omega - . An electrical device having a resistance of 5 ohms would be represented as R = 5.