A crusher is a machine designed to reduce large rocks into smaller rocks, gravel, or rock dust. Crushers may be used to reduce the size, or change the form, of waste materials so they can be more easily disposed of or recycled, or to reduce the size of a solid mix of raw materials (as in rock ore), so that pieces of different composition can be differentiated. Crushing is the process of transferring a force amplified by mechanical advantage through a material made of molecules that bond together more strongly, and resist deformation more, than those in the material being crushed do. Crushing devices hold material between two parallel or tangent solid surfaces, and apply sufficient force to bring the surfaces together to generate enough energy within the material being crushed so that its molecules separate from (fracturing), or change alignment in relation to (deformation), each other. The earliest crushers were hand-held stones, where the weight of the stone provided a boost to muscle power, used against a stone anvil. Querns and mortars are types of these crushing devices.

Bruno Leopoldo Francesco Sammartino (born October 6, 1935) is an Italian-American former professional wrestler, best known for being the longest-running champion of the World Wide Wrestling Federation (WWWF), holding the title across two reigns for over 11 years in total, as well as the longest single WWE Championship reign in professional wrestling history.

Sammartino's wrestling style was more mat-oriented which was typical of wrestlers from his era. His brawling, power moves, and personal charisma helped him become the most popular American wrestler in the 1960s and 1970s.

Born in Pizzoferrato, Abruzzo, Italy on October 6, 1935, Sammartino was the youngest of seven brothers and sisters. Four older siblings died during his time in Italy. During his childhood, Sammartino's family hid from German soldiers in a mountain called Valla Rocca, during the latter stages of World War II. During this time, Sammartino's mother, Emilia, would sneak into their German-occupied town for food and supplies. She once was captured and another time shot in the shoulder during such trips. Eventually, Sammartino caught rheumatic fever but was nursed back to health by his mother with hot blankets and leeches. In 1950, he moved to the United States and settled in Pittsburgh, Pennsylvania, where his father had already lived for several years.

Michael Render (born April 20, 1975), better known by his stage name Killer Mike, is an American rapper, signed to Grind Time Official through the SMC/Fontana Distribution. He made his debut on "Snappin' and Trappin'" on OutKast's 2000 LP Stankonia, and also appeared on the Grammy-winning song, "The Whole World", the single from OutKast's greatest hits album Big Boi and Dre Present...OutKast. He was featured in the movies 20 Funerals, Idlewild, and ATL.

Killer Mike released his debut album, Monster, in 2003. The album's lead single was "Akshon (Yeah!)", which featured rap group OutKast on guest vocals, and was included on the soundtrack to the 2004 version of EA Sports popular video game Madden NFL. He even made a Madden '04 remix of "Akshon (Yeah!)" for the game. The album's second single was "A.D.I.D.A.S.", featuring Big Boi and Sleepy Brown, which peaked at #60 on the Billboard Hot 100. It is Killer Mike's highest charting single to date as a lead artist. The song's title was an acronym for "All day I dream about sex". Following the release of his own material, he appeared on "Flip Flop Rock" and "Bust" on the Speakerboxx half of Speakerboxxx/The Love Below. He also appeared on "Southern Takeover" with Pastor Troy on Chamillionaire's CD The Sound of Revenge. Killer Mike appeared on the song "Never Scared" by fellow rapper Bone Crusher, also with T.I., from AttenCHUN! It peaked at #26 on the Hot 100, becoming Mike's first top 40 hit. The song was also used on the Madden NFL 04 game and even by the Atlanta Braves for their 2003 season. His second album Ghetto Extraordinary has had its release date pushed back several times due to disputes between Big Boi and Sony Records.