Precision and accuracy are completely different concepts. Let's explore what they really mean, and how to tell the difference. 1  Resolution is the fineness to which an instrument can be read.  Precision is the fineness to which an instrument can be read repeatably and reliably.
1980s & 90s-High Performance Plastics. 1980 - First production of linear low density polyethylene. 1980 - First Blue HDPE pressure pipes for potable water introduced into UK. 1982 - First artificial heart made mainly of polyurethane, introduced implanted in a human.
What year did they start putting airbags in cars? November, 1973 Air bags were invented in 1951 and tested over the following 20 years. In November, 1973, the air bag was marketed as optional by GM for several 1974 model fuâ¦ll-size cars made by the Buick, Cadillac and Oldsmobile divisions.