July 2011 edited July 2011 in Engineering Majors. I'm not saying I'm going to go into it, I'm just curios what you guys think. I'm either going to become a Mechanical or Aerospace engineer  they both interest me a lot.
This denarius contained an average 4.5 grams, or 1 â 72 of a Roman pound of silver. It formed the backbone of Roman currency throughout the Roman republic. The denarius began to undergo slow debasement toward the end of the republican period. Under the rule of Augustus, (63 BC-AD 14) its silver content fell to 3.9 grams (a theoretical weight of 1 â 84 of a Roman pound). It remained at nearly this weight until the time of Nero (AD 37-68), when it was reduced to 1 â 96 of a
A denier is a unit of weight for fibers. It is defined as the weight of 9,000 meters of the fiber, and it is generally measured in grams. The current denier standard is 10 grams per 9,000 meters. Microns, also called micrometers, are units of measurement that equal one millionth of a meter. To put that into perspective, the diameter of a strand of human hair is between 20 and 180 microns.