Weightlessness

Weightlessness, or an absence of 'weight', is an absence of stress and strain resulting from externally applied mechanical contact-forces, typically normal forces from floors, seats, beds, scales, and the like. Counterintuitively, a uniform gravitational field does not by itself cause stress or strain, and a body in free fall in such an environment experiences no g-force acceleration and feels weightless. This is also termed "zero-g" where the term is more correctly understood as meaning "zero g-force."

When bodies are acted upon by non-gravitational forces, as in a centrifuge, a rotating space station, or within a space ship with rockets firing, a sensation of weight is produced, as the contact forces from the moving structure act to overcome the body's inertia. In such cases, a sensation of weight, in the sense of a state of stress can occur, even if the gravitational field was zero. In such cases, g-forces are felt, and bodies are not weightless.

When the gravitational field is non-uniform, a body in free fall suffers tidal effects and is not stress-free. Near a black hole, such tidal effects can be very strong. In the case of the Earth, the effects are minor, especially on objects of relatively small dimension (such as the human body or a spacecraft) and the overall sensation of weightlessness in these cases is preserved. This condition is known as microgravity and it prevails in orbiting spacecraft.

Zero Gravity (disambiguation)

Zero gravity refers to weightlessness.

Zero gravity may also refer to:

See also

Stunts and flights

Games

Film TV and entertainment

Music

See also

Sonic Riders: Zero Gravity

Sonic Riders: Zero Gravity, later released in Japan as Sonic Riders: Shooting Star Story (ソニックライダーズ シューティングスターストーリー, Sonikku Raidāzu: Shūtingu Sutā Sutōrī), is a hoverboard racing video game developed by Sonic Team and published by Sega. It is the fifth racing game in the Sonic the Hedgehog series, following Sonic Drift, Sonic Drift 2, Sonic R and its predecessor, Sonic Riders. A sequel titled Sonic Free Riders was released on November 4, 2010 exclusively for Kinect on Xbox 360.

Plot

The Story is split into two halves, the Heroes Story (Team Sonic), and Babylon Story (Babylon Rogues). Although the stories start separately, they overlap each other, telling the story as the main characters within that story see it. Following the format of Sonic Riders, Babylon Story also includes an epilogue that expands past the Heroes Story leading to the last course.

Sonic, Tails, and Knuckles are alerted to robots that are attacking a famous city of the future. They set out to retrieve a legendary artifact that has the ability to control gravity. Along the way they discover surprises, including the return of the Babylon Rogues, a group of avian thieves who are also after the artifacts. This sets off a war to decide who gets the artifact, leading them to settle their dispute by having an Extreme Gear competition.

The Last

The Last may refer to:

See also

The Last (band)

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The Last is an American, Los Angeles-based power pop band, formed in the 1970s around three brothers: Joe (guitar, vocals), Mike (vocals), and David Nolte (bass guitar). They released several albums on SST Records and Bomp! Records.

History

The Nolte brothers formed the band in 1976, and the band's sound was influenced by garage rock, surf rock, folk rock and psychedelic rock. The first settled line-up also included Vitus Mataré (keyboards, flute) and Jack Reynolds (drums). After three self-financed singles, the band was signed by Bomp! Records, who issued the debut album L.A. Explosion! in 1979 (described by Trouser Press as "a near-perfect debut"). It was also issued in the UK by London Records. They reverted to their own Backlash label for second album Look Again (1980), and split up in the mid-1980s with David Nolte joining Wednesday Week and later Lucky, and Mataré forming Trotsky Icepick. The band were considered a major influence on the psychedelia-influenced LA bands of the mid-1980s, including The Bangles and The Three O'Clock.

Wiz Khalifa

Cameron Jibril Thomaz (born September 8, 1987), better known by his stage name Wiz Khalifa, is an American recording artist, songwriter and actor. He released his debut album, Show and Prove, in 2006, and signed to Warner Bros. Records in 2007. His Eurodance-influenced single, "Say Yeah", received urban radio airplay, charting on the Rhythmic Top 40 and Hot Rap Tracks charts in 2008.

Khalifa parted with Warner Bros. and released his second album, Deal or No Deal, in November 2009. He released the mixtape Kush and Orange Juice as a free download in April 2010; he then signed with Atlantic Records. He is also well known for his debut single for Atlantic, "Black and Yellow", which peaked at number one on the Billboard Hot 100. His debut album for the label, Rolling Papers, was released on March 29, 2011. He followed that album with O.N.I.F.C. on December 4, 2012, which was backed by the singles "Work Hard, Play Hard" and "Remember You". Wiz released his fourth album Blacc Hollywood on August 18, 2014, backed by the lead single We Dem Boyz. In March 2015, he released "See You Again" for the soundtrack of the film Furious 7 and the song peaked at number one on the Billboard Hot 100.