What are the seats directly attached to on the Cobra roller coaster at the Tivoli Friheden amusement park?
Inverted roller coaster An inverted roller coaster is a roller coaster in which the train runs under the track with the seats directly attached to the wheel carriage. This latter attribute is what sets it apart from the older suspended coaster, which runs under the track, but "swings" via a pivoting bar attached to the wheel carriage. The coaster type's inverted orientation distinguishes it from a traditional roller coaster, where the passengers' legs rather than arms are exposed.
History of the roller coaster Roller coaster amusement rides have origins back to ice slides constructed in 18th-century Russia. Early technology featured sleds or wheeled carts that were sent down hills of snow reinforced by wooden supports. The technology evolved in the 19th century to feature railroad track using wheeled cars that were securely locked to the track. Newer innovations emerged in the early 20th century with side friction and underfriction technologies to allow for greater speeds and sharper turns. By the mid-to-late 20th century, these elements intensified with the introduction of steel roller coaster designs and the ability for them to invert riders.