Ovarian failure: Ovarian failure causes elevated fsh and lh, ovarian falure is mostly due to genetic or immune causes - although we do not know or understand all the possible reasons. ... Read more Dr. Gerard Honore Dr. Honore
Organ pipes are generally made out of either metal or wood. Very rarely, glass, porcelain, plastic, paper, Papier-mÃ¢chÃ©, or even stone pipes may be seen. A historical organ in the Philippines has pipes made exclusively of bamboo. Metal pipes are usually made of lead; for increased rigidity it is alloyed with tin along with trace amounts of antimony and copper.
1 1 The main body of the saxophone is produced from brass. 2  This is made by first putting a brass tube on a long, tapered mandrel and then lubricating it. 3  The brass is reshaped and made a consistent thickness by a doughnut-shaped die that is drawn down the mandrel.he saxophone however, can be directly credited to Adolphe Sax who invented it during the 1800s. Sax was born in Belgium in 1814 and learned to make instruments from his father who was a musical instrument maker. By the age of 16, Sax was already an accomplished instrument maker himself.