A countertenor is a type of classical male singing voice whose vocal range is equivalent to that of the female contralto or mezzo-soprano voice types.
Types of Compound Bows. Compound bows are classified by the type of cam system they use (called the bow eccentric.) The most popular types of compound bows on the market are Single Cam (sometimes also called One Cam or Solocam), Hybrid Cam, Dual Cam and Binary Cam. Less common designs like Quad Cam and Hinged are a little harder to find.
Longbow vs Recurve Bow. For those who do not know, Longbow and Recurve are the names or rather terms used to refer to two different types of bows that are being used today in archery competitions, as well as hunting game.ecurve is a type of bow that is a later invention in the history of mankind though excavations have revealed that these bows were being used by human beings even 2000 years ago. Recurve bow has limbs that are curved inwards at the end making it look very different from the longbow.