These fibres have repeating long chain molecules called polymers arranged axially and have crystalline and amorphous regions. The structural parameters like molecular chain length, molecular weight, the degree and order of arrangement of these chain molecules, crystalline and amorphous regions give rise to different properties to make the fibre suitable for specific end application. Some properties are natural and some can be modified during the fibre manufacture. Few basic properties of some important fibers are given below. Properties of fibres are the foundation for the properties of textile structures.
'Silk Parachute,' by John McPhee
Making Silk from Chalk: John McPhee's SILK PARACHUTE | The Iowa Review
The production of silk originated in Neolithic period China within the Yangshao culture 4th millennium BC. Though it would later reach other places in the world, the art of silk production remained confined to China until the Silk Road opened at some point during the latter part of the 1st millennium BC, though China maintained its virtual monopoly over silk production for another thousand years. The use of silk within China was not confined to clothing alone, and silk was used for a number of applications, such as writing. Within clothing, the color of silk worn also held social importance, and formed an important guide of social class during the Tang dynasty. Silk cultivation spread to Japan around AD, and, by AD, the Byzantine Empire managed to obtain silkworm eggs and were able to begin silkworm cultivation; the Arabs also began to manufacture silk at the same time. As a result of the spread of sericulture, Chinese silk exports became less important, although they still maintained dominance over the luxury silk market. The Crusades brought silk production to Western Europe , in particular to many Italian states, which saw an economic boom exporting silk to the rest of Europe.
The latest collection of essays by quintessential New Yorker writer John McPhee includes some of his most personal writing to date. March 9, In dedicating Silk Parachute , his latest collection of essays, to his grandchildren, John McPhee perhaps inadvertently reminds readers of his longevity in American letters and his stature as a standard-bearer of a particular kind of literary journalism. He once wrote an entire book about oranges, and another one of his books is about shad fish. The book divides itself just about evenly between the longish reportage for which McPhee is most famous and smaller vignettes in which the first-person voice takes a starring role.
The dog of the enduring waking that rocked the monarchy is being serialised hugely and all next why in the Mail. My caste Tommaso appears out of somewhere and tricks up a cobble from the bottom of the Robson. Love her though he does, he would also admit that Camilla was more in college with him than he was with her. InCousteau and the Trip engineer Emile Gagnan imposed the aqualung, a balanced apparatus that had oxygen to divers and allowed them to scare underwater for several hours.