Weightlessness (or zero-g) is the condition that exists for an object or person when they experience little or no acceleration except the acceleration that defines their inertial trajectory, or the trajectory of pure free-fall. The physical path of an inertial trajectory depends only on the direction and strength of the sum of the gravitational attractions outside of the inertial reference frame.

The definition and use of 'Weightlessness' is difficult. Weight means the force exerted by gravity, weightless means the absence of such forces and weightlessness formally means the condition of zero gravitational force. In common use, however, 'weightlessness' (often with quotation marks) has the meaning given in the preceding paragraph. Astronauts and cosmonauts in the International Space Station are said to experience 'weightlessness', even though, at an altitude of a few hundred km, their weight (the gravitational force acting on them) is only about 10% less than on earth. Their orbit has a large centripetal acceleration towards the earth and their weight is the centripetal force producing it. However, the space station has (almost) exactly the same acceleration towards the earth. Consequently, in the frame of the space station, an unsupported person appears to have no acceleration and so his relative motion in this frame is the same as that of a person without weight in a spacecraft that is not accelerating. Hence the name 'weightlessness'.

Washed Out is the stage name of the American electronic musician Ernest Greene (born in 1983, Perry, Georgia).

After earning an undergraduate degree from the The University of Georgia, Greene graduated in 2009 with a Master of Library and Information Science degree from the University of South Carolina and was unable to find a job as a librarian. Greene moved back home to the rural town of Perry, Georgia and started producing songs in his bedroom studio. He soon won the favor of a number of influential music bloggers after they found his music on his MySpace page. His style has been identified with the Chillwave movement. He has identified hip hop as influencing the way he writes songs. The first two Washed Out EPs were released in August and September 2009. Washed Out made his debut New York City performance (his second live show ever) at Santos Party House. He has since performed at the 2010 Pitchfork Music Festival and his song "Feel it All Around" is featured in the opening sequence of the TV series Portlandia.