remember me sign in recover your password. a password will be e-mailed to you. contact us converter/calculator companies events products machinery jobs rss contributors q & a textile school - a knowledge-base repository of textile articles fiber manmade fiber natural fiber yarn ring-spinning open-end...
in production of technical textile fabrics fabric air permeability is a measure to what extent it gives air passing through the fabric. the porosity of fabric is the demonstration of the air gap as a percentage within the fabric. it has been important for especially the tent fabric and parachute. continue...
remember me sign in recover your password. a password will be e-mailed to you. contact us converter/calculator companies events products machinery jobs rss contributors q & a textile school - a knowledge-base repository of textile articles fiber manmade fiber natural fiber yarn ring-spinning open-end...
artistic photography art for sale by some of the world's most talented up-and-coming photographers. joseph nicephore niepce, in , used a camera obscura to produce the first stable photographic image (a negative) upon silver nitrate-coated paper--but this image took several days of exposure time, and...