Drums are played by striking the membrane. There are many versions of drums.
The piano is one of the most popular instruments in the world. It is a chordophone which produces sounds mechanically.
A string quartet consists of four string players, it appeared in the late 18th century.
The river and marine sailing boats of ancient Egypt were one-masted, oared boats
The Aztec Empire was a despotic, militaristic state ruled by the tlatoani.
The head of the Byzantine Empire, the direct continuation of the Roman Empire, was the emperor.
The most important weapons of medieval Arab warriors were the bow and the sword.
The Incas´ rudimentary weapons were inadequate in their struggle against the Spanish Conquistadors.
The recorder is a woodwind musical instrument, a type of fipple flute.
A zither is one of the typical instruments of Hungarian folk music, played by strumming or plucking the strings.
The masterpieces of ancient Greek potters are important archaeological artefacts.
An ancient Greek myth about the tragedy of father and son who wanted to flee the island of Crete.
A long pipe in the centre of the tower penetrates the ocean bed until it reaches the layer that contains oil.
The withdrawal reflex is a spinal reflex that ensures moving away from potentially damaging stimuli.
Public schools in villages played an important role in education.
A type of herbivorous dinosaur easily recognisable by its large frill and three horns which lived in the Cretaceous period.
The building complex was one of the most important Benedictine abbeys for centuries.
The Ottoman army included janissaries (paid warriors) and sipahis (vassal knights).
This animation demonstrates how a refrigerator works.
The French monarch got his epithet because of his opulent and extravagant lifestyle.
Cinemas were built in large numbers in big cities of the US in the 1910s.