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.
Use of Plastic Bags in Australia. Plastic bags have been around for 30 years now. It is estimated world wide that 1 trillion bags are used and discarded every year. Australians use 3.92 billion plastic bags a year, that's over 10 million new bags being used every day.