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.
The first glass baby bottle in the U.S. was patented by Charles Windship of Roxbury, Massachusetts in 1841. His design featured a teardrop-shaped bottle with a glass tube coming down from the neck to act as a straw. Attached to the neck was a rubber hose, leading up to a bone mouth guard and a rubber nipple.