Velocity refers to the rate of change of distance with respect to time. It is a vector quantity, which means that it has both- a direction and a magnitude. Angular velocity evaluates the rate of change of...

Superstition denotes a belief or notion that is based on irrational thoughts. It can be related to religious, cultural or personal values. On the other hand, science is a branch of knowledge that is based on...

Niagara Falls are the waterfalls located on the Niagara River. They comprise of three waterfalls- The American Falls and Bridal Veil in the United States of America and the Canadian ‘Horseshoe’ that falls in...

Nebula is a cloud in deep space consisting of gas or dirt/dust (e.g. cloud formed after a star explodes). Solar Nebula is the cloud of gas and dust that began to collapse about 5 billion years ago to form the...

Nebula is a cloud and dust in space. Molecular cloud is a type of nebula. The formation of molecules is permitted due to its density and size.