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.
Considering we know that glass bottles take 1-2 million years and plastic bags take 20-1,000 years to decompose, youâd think weâd be more responsible. After shedding light on our âtrashyâ habits, we thought itâd be appropriate to take a look at some other items to see how long theyâll exist on the planet without us.