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.
How a Pipe Organ Works. Simply Statedâ¦. â¦the pipe organ is a big box of whistles. Each pipe sits on top of a hollow wind chest that is filled with compressed air provided by a bellows or blower. Each âstopâ at the organ console represents a set of pipes (a rank) of a particular tone color, with a different pipe for every note on the keyboard.