A screw thread, often shortened to thread, is a helical structure used to convert between rotational and linear movement or force. A screw thread is a ridge wrapped around a cylinder or cone in the form of a helix, with the former being called a straight thread and the latter called a tapered thread. A screw thread is the essential feature of the screw as a simple machine and also as a fastener.
Quick Answer. Tin is an element that is made up of the mineral cassiterite and mined from the crust of the earth. The combination of cassiterite and carbon in a high heat setting forms the type of tin that is used in modern applications. Continue Reading.
The tin whistle, also known as the penny whistle, Irish whistle, or just plain old whistle, is an instrument with a plastic or wooden fipple, or mouthpiece, and a metal body tube. They are fairly easy to play and the fingerings are similar to that of the saxophone, clarinet, and flute.