Irish stepdance many this was a betrayal of tradition, but to some it was a way of expanding Irish culture and became widely accepted. Following after Riverdance was Lord of the Dance and many other theatrical productions based on Irish stepdance. Michael Flatley, an Irish stepdancer, became a well known name within these shows. Two types of shoes are worn in Irish stepdance; hard shoes, which make sounds similar to tap shoes, and soft shoes (called Ghillies), which are similar to ballet slippers. The dances for soft shoe and hard shoe are generally different and go by different names. Different music with
Types of volcanic eruptions "Ultra-Plinian." Subglacial and phreatic eruptions are defined by their eruptive mechanism, and vary in strength. An important measure of eruptive strength is Volcanic Explosivity Index (VEI), an order of magnitude scale ranging from 0 to 8 that often correlates to eruptive types. Volcanic eruptions arise through three main mechanisms: There are two types of eruptions in terms of activity, explosive eruptions and effusive eruptions. Explosive eruptions are characterized by gas-driven explosions that propels magma and tephra. Effusive eruptions, meanwhile, are characterized by the outpouring of lava without significant explosive eruption. Volcanic eruptions vary widely in strength. On the one extreme