TAXDAL-isms

Pearl 7TAXDAL-ism

Wool was probably the first fiber to be made successfully into fabric around 7000 years ago. In Egypt, mummies from 3400 BC have been found wrapped in linen shrouds a 1000 yards long (900m) made from flax. Cotton was used in India in 3000 BC.

 

TAXDAL-isms

Pearl 7TAXDAL-ism

Before 105 AD, most documents had been written on parchment made from the skin of sheep or goats, or vellum, made from the skin of a calf. It has been estimated that a single book 200 pages long would have needed the skins of 12 sheep.

 

TAXDAL-isms

PearlTAXDAL-isms

The technique for making thin, flat window glass was perfected in Normandy, France, in the 14th century. Known as crown glass, each piece was blown by a craftsman. An accomplished glass-blower could make only about a dozen windows in a day, making medieval window glass an expensive luxury.

TAXDAL-isms

Pearl 7TAXDAL-ism

Stainless steel was discovered by accident in 1913 by Harry Brearley while he experimented with combinations of metals suitable for making gun barrels. Later, he noticed most of his specimens had rusted except for the one containing 14 percent chromium.