The Middle Ages were considered the time of great discovery which start from 5th AD to 15th AD centuries. Middle Ages are also known as the Dark Ages and medieval technology belongs to the technology used in Europe. At that time, civilization saw...
Volcanic eruptions are the result of movement of tectonic plates present inside the earth’s core. As a result of these movements a large amount of the magma is released. It is measured by the volcanic explosive index. All the volcanoes...