To understand the nature and significance in our daily lives of liquid crystal polymers, we must first understand where these polymers come from. What is their origin? Liquid crystals, the building blocks of these polymers, are matter that possess properties of both an ordinary liquid and a more familiar solid. Liquid crystals may flow like a liquid but have molecules that may be oriented in a directional or ordered crystalline manner as a solid. Indeed, liquid crystals were once thought to be an unusual state of matter.
Poll: Should the UK’s railways be renationalised?
I'd hate to be disingenuous so I've replotted the data with the first trendline from 1946 to 1977 and the second using your chosen dates 1983 to 2018....