Over the course of October at London Heathrow Airport, the length of the day is rapidly decreasing. From the start to the end of the month, the length of the day decreases by 1 hour, 54 minutes, implying an average daily decrease of 3 minutes, 48 seconds, and weekly decrease of 26 minutes, 35 seconds.
Polyester is a synthetic fiber derived from coal, air, water, and petroleum. Developed in a 20th-century laboratory, polyester fibers are formed from a chemical reaction between an acid and alcohol.
Synthetic Rubber. Synthetic rubber is made from petroleum. This latter substance is natural, as is latex, but rubber producers put the petroleum through a process known as polymerization. This process creates long chains of molecules called polymers. These polymers are designed to resist weathering. They do not break down anywhere nearly as fast as natural latex.