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.
Polyester is a synthetic and should be washed on a cold or cool cycle if you put it in the machine (e.g. cold water or say, thirty degrees). However, you should defer to the washing instructions on the label. Some garments advise hand wash rather than machine wash. Always dry it in the shade as sunlight can fade it.