Questions contribution: Sourabh Banthia
1. Michael Ryan Pritchard (born May 4, 1972) is an American musician, better known as Mike X is the bassist, backing vocalist and co-founder of the American rock band _____. While at school, he would play "air-bass." While pretending to pluck the strings, he made the noise, "X, X, X," so his schoolmates started to call him "Mike X".
2. What is this scientific phenomena commonly known as?