Koen Bauweraerts, more commonly known as DJ Coone, is a Belgian jumpstyle and hardstyle producer, musician and DJ. He has been producing since the year 2002, when he started with hard house productions. Now, he is the owner of the label Dirty Workz, which releases jumpstyle and hardstyle music.

The sound barrier, in aerodynamics, is the point at which an aircraft moves from transonic to supersonic speed. The term, which occasionally has other meanings, came into use during World War II, when a number of aircraft started to encounter the effects of compressibility, a collection of several unrelated aerodynamic effects that "struck" their planes like an impediment to further acceleration. By the 1950s, new aircraft designs routinely "broke" the sound barrier.

Some common whips such as the bullwhip or sparewhip are able to move faster than sound: the tip of the whip breaks the sound barrier and causes a sharp crack—literally a sonic boom.Firearms since the 19th century have generally had a supersonic muzzle velocity.

The sound barrier may have been first breached in nature some 150 million years ago. Some paleobiologists report that, based on computer models of their biomechanical capabilities, certain long-tailed dinosaurs such as Apatosaurus and Diplodocus may have possessed the ability to flick their tails at supersonic velocities, possibly used to generate an intimidating booming sound. This finding is theoretical and disputed by others in the field. Meteorites entering the Earth's atmosphere usually, if not always, descend faster than sound.

The Opposites are a Dutch rap duo. The duo consists of the rappers Willem de Bruijn (Willy) and Twan van Steenhoven (Big2). The two rappers started rapping when Willem de Bruijn had to make a rap for his teacher as a punishment. Willem noticed he had a talent for rapping and decided to go on with rapping, together with his pall Twan van Steenhoven they became addicted to Hiphop so they say. The name The Opposites comes from the fact that Willem is black and small and Twan big and white.

Via a demo contest on internet the duo gets in touch with Mastermind Records which wants to make a follow up on the very populair album: Streetremixes from D-men. The duo has a part in both Streetremixes 2 and 3 along with other later famous Dutch rappers like: Yes-r, Brace, Lange frans and Baas B. The debute album is called "Youngsters" and is rapped in English but the duo doesn't like that and after "youngsters" they decide to rap in their native language: Dutch. The duo makes a mixtape "Vuur" which can be downloaded on internet for free, this mixtape even reaches the Dutch radio. The Opposites want to make a studio album and to do this they switch to the record label TopNotch. The same year the duo makes real name with their coöperation on the hitsingle Wat Wil Je Doen from The Partysquad and their own single Fok Jou from their then still unreleased album De Fik Erin. Their album De Fik Erin is released in late 2005 and the second single from this albumis released in early 2006: Slaap. Slaap is The Opposites first big hit it reaches number one on the Dutch popcharts.