Machine Design or Mechanical Design. This is the series of articles on Machine Design or Mechanical Design. Machine design and drawing are very important subjects of mechanical engineering. No produce can be manufactured without designing it.
Bassoons are usually made from maple wood. Like the oboe the bassoon is played with a double reed. To make a sound the player blows through the double reed which is attached to a crook leading into the main body of the instrument. Bassoon players change the pitch of the notes by pressing different combinations of keys.
Silica sinter may consist mainly of opal, but could as well be made mainly of very fine-grained quartz similar in structure to jasper. Small regions may assume an agate-like structure, but in most cases the banding is different from that in an agate.