Bardiche 2 feet (60 cm)) the shaft was one of the shortest of all polearms; rarely did it exceed 5 feet (1.5 m) in length. It relied more on the weight of its heavy blade to do the damage than a swing from a long pole. This makes the bardiche more similar to the Danish axe, in some respects, than to a true polearm. In Russia and in Poland this weapon was used to rest handguns upon when firing. It was standard equipment for the Streltsy (literally "shooters") corps (foot, mounted and dragoons) and also for the Polish infantry (shorter version
Types of volcanic eruptions Types of volcanic eruptions Several types of volcanic eruptions—during which lava, tephra (ash, lapilli, volcanic bombs and volcanic blocks), and assorted gases are expelled from a volcanic vent or fissure—have been distinguished by volcanologists. These are often named after famous volcanoes where that type of behavior has been observed. Some volcanoes may exhibit only one characteristic type of eruption during a period of activity, while others may display an entire sequence of types all in one eruptive series. There are three different types of eruptions. The most well-observed are magmatic eruptions, which involve the decompression of gas within magma that