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 means to feel really good. Satisfied.    Pleasure is often used as a word to describe immense feelings of  ecstasy and is defined as as noun meaning the state or feel â¦ ing of  being pleased, worldly or frivolous enjoyment, recreation or  amusement; diversion; enjoyment, and sensual gratification. 12 people found this useful.