Average Weather in October at London Heathrow Airport United Kingdom. At London Heathrow Airport, the month of October is characterized by falling daily high temperatures, with daily highs decreasing by 7Â°F, from 63Â°F to 56Â°F over the course of the month, and rarely exceeding 70Â°F or dropping below 50Â°F.
Silk is a natural fabric where polyester is a synthetic. Silk is far more expensive than polyester not as durable and requires a bit more care. The absolute best way for you to know the difference is to go to a local highend clothes store and touch a silk and a polyester shirt.
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.In this reaction, two or more molecules combine to make a large molecule whose structure repeats throughout its length.olyester is a chemical term which can be broken into poly, meaning many, and ester, a basic organic chemical compound. The principle ingredient used in the manufacture of polyester is ethylene, which is derived from petroleum.