Roller coaster
Overview
 
The roller coaster is a popular amusement ride
Amusement ride
Amusement rides are large mechanical devices that move people to create enjoyment. They are frequently found at amusement parks, traveling carnivals, and funfairs.-Notable types:*Afterburner*Ali Baba*Balloon Race*Booster...

 developed for amusement park
Amusement park
thumb|Cinderella Castle in [[Magic Kingdom]], [[Disney World]]Amusement and theme parks are terms for a group of entertainment attractions and rides and other events in a location for the enjoyment of large numbers of people...

s and modern theme parks. LaMarcus Adna Thompson
LaMarcus Adna Thompson
LaMarcus Adna Thompson was a US inventor and businessman most famous for developing many highly enjoyable gravity rides.-Early years:...

 patented the first coasters on January 20, 1885. In essence a specialized railroad system, a roller coaster consists of a track
Rail tracks
The track on a railway or railroad, also known as the permanent way, is the structure consisting of the rails, fasteners, sleepers and ballast , plus the underlying subgrade...

 that rises in designed patterns
Roller coaster elements
Roller coasters are composed of various elements, the individual parts of the design and operation, such as a track, hill, loop, turn, etc. Variations in normal track movement that add thrill or excitement to the ride are often called "thrill elements."...

, sometimes with one or more inversions (such as vertical loops) that turn the rider briefly upside down. The track does not necessarily have to be a complete circuit, as shuttle roller coaster
Shuttle roller coaster
A shuttle roller coaster is any roller coaster that ultimately does not make a complete circuit, but rather reverses at some point throughout its course and traverses the same track backwards...

s exhibit.
 
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