Argon has a lower glow voltage, argon helps the smaller lamps start at a lower voltage. The larger LPS lamps used in street lighting for the most part do not use argon. 2. LPS Development and Inventors: Low pressure sodium lamps were invented first in 1920 by Arthur H. Compton at Westinghouse.
1. the pleasure felt when having a good time. 2. act of receiving pleasure from something. 3. (law) the exercise of the legal right to enjoy the benefits of owning property. Familiarity information: ENJOYMENT used as a noun is uncommon.
It is the possession of those circumstances or that state of being which is attended with enjoyment. It is associated with good luck, good fortune, prosperity, well-being, delight, health, safety, and love. Happiness is generic, and is applied to almost every kind of enjoyment except that of the animal appetites.