Euthanasia Coaster
Encyclopedia
The Euthanasia Coaster is an art concept for a steel roller coaster
Steel roller coaster
A steel roller coaster is a roller coaster that is defined by having a track made of steel. Steel coasters have earned immense popularity in the past 50 years throughout the world...

 designed to kill its passengers. In 2010, it was designed and made into a scale model by Julijonas Urbonas, a PhD candidate at the Royal College of Art
Royal College of Art
The Royal College of Art is an art school located in London, United Kingdom. It is the world’s only wholly postgraduate university of art and design, offering the degrees of Master of Arts , Master of Philosophy and Doctor of Philosophy...

 in London
London
London is the capital city of :England and the :United Kingdom, the largest metropolitan area in the United Kingdom, and the largest urban zone in the European Union by most measures. Located on the River Thames, London has been a major settlement for two millennia, its history going back to its...

. Urbonas, who has worked at an amusement park, stated that the goal of his concept roller coaster is to take lives "with elegance and euphoria". As for practical applications of his design, Urbonas mentioned "euthanasia
Euthanasia
Euthanasia refers to the practice of intentionally ending a life in order to relieve pain and suffering....

 or execution". John Allen, who served as president of the Philadelphia Toboggan Company
Philadelphia Toboggan Company
The Philadelphia Toboggan Company is one of the oldest existing roller coaster manufacturing companies in the world.Mack Rides of Germany dates back to 1781, but it did not start building coasters until 1921 Based in Hatfield, Pennsylvania, it was established in 1904 by Henry B...

, inspired Urbonas with his description of the ideal roller coaster as one that "sends out 24 people and they all come back dead". As a hypothetical means of euthanasia
Euthanasia
Euthanasia refers to the practice of intentionally ending a life in order to relieve pain and suffering....

, the design led to concern from anti-euthanasia associations such as Care Not Killing
Care Not Killing
Care, Not Killing is an alliance of several organisations who are opposed to the legalisation of euthanasia or physician-assisted suicide in the United Kingdom.-Alliance members:The members of the alliance include:* British Council of Disabled People...

.

Design

The design starts with a steep-angled lift
Lift hill
A lift hill, or chain hill, is often the initial upward-sloping section of track on a typical roller coaster that initially transports the roller coaster train to an elevated point or peak in the roller coaster ride...

 to the 510 metres (1,673.2 ft) top, that would take two minutes for the 24-passenger train
Train (roller coaster)
A roller coaster train or car describes the vehicle which transports passengers around a roller coaster's circuit. More specifically, a roller coaster train is made up of two or more "cars" which are connected by some sort of specialized joint. It is called a "train" because the cars follow one...

 to reach. From there, a 500 metres (1,640.4 ft) drop would take the train to 360 kilometre per hour, close to its terminal velocity
Terminal velocity
In fluid dynamics an object is moving at its terminal velocity if its speed is constant due to the restraining force exerted by the fluid through which it is moving....

, before flattening out and speeding into the first of its seven slightly clothoid inversions
Roller coaster inversions
A roller coaster inversion is an element of a roller coaster track that turns riders upside-down and then rights them. The degree to which it must invert riders is nebulous and a point of contention when it comes to elements like overbanked turns, which turn riders such that their heads are below...

. Each inversion would have a smaller diameter
Diameter
In geometry, a diameter of a circle is any straight line segment that passes through the center of the circle and whose endpoints are on the circle. The diameters are the longest chords of the circle...

 than the one before in order to inflict 10 g
G-force
The g-force associated with an object is its acceleration relative to free-fall. This acceleration experienced by an object is due to the vector sum of non-gravitational forces acting on an object free to move. The accelerations that are not produced by gravity are termed proper accelerations, and...

 to passengers while the train loses speed. After a sharp right-hand turn the train would enter a straight, where unloading of bodies and loading of passengers could take place.

Pathophysiology

The Euthanasia Coaster would kill its passengers through prolonged cerebral hypoxia
Cerebral hypoxia
Cerebral hypoxia refers to a reduced supply of oxygen to the brain. Cerebral anoxia refers to a complete lack of oxygen to the brain. There are four separate categories of cerebral hypoxia; in order of severity they are; diffuse cerebral hypoxia , focal cerebral ischemia, cerebral infarction, and...

, or insufficient supply of oxygen
Oxygen
Oxygen is the element with atomic number 8 and represented by the symbol O. Its name derives from the Greek roots ὀξύς and -γενής , because at the time of naming, it was mistakenly thought that all acids required oxygen in their composition...

 to the brain. The ride's seven inversions would inflict 10 g on its passengers for 60 seconds – causing g-force related symptoms starting with gray out through tunnel vision
Tunnel vision
Tunnel vision is the loss of peripheral vision with retention of central vision, resulting in a constricted circular tunnel-like field of vision.- Medical / biological causes :Tunnel vision can be caused by:...

 to black out
Black Out
Black Out is the second album by Omaha indie rock band The Good Life. It was released on March 4, 2002 by Saddle Creek Records. It contains 14 songs, running approximately 50:08....

 and eventually g-LOC
G-LOC
G-LOC, pronounced 'GEE-lock', is the abbreviation of G-force induced Loss Of Consciousness, a term generally used in aerospace physiology to describe a loss of consciousness occurring from excessive and sustained g-forces draining blood away from the brain causing cerebral hypoxia...

, g-force induced loss of consciousness. Depending on the tolerance of an individual passenger to g-forces, the first or second inversion would cause cerebral anoxia, rendering the passengers brain dead. Subsequent inversions would serve as insurance against unintentional survival of passengers.

Exhibition

Urbonas' concept drew media attention when shown as part of the HUMAN+ display at the Science Gallery
Science Gallery
The Science Gallery is a public science centre at Trinity College, Dublin, Ireland. Opened in 2008 and housed in Trinity's Naughton Institute, it holds various exhibitions and lectures with a view to science outreach and art-science collaborations. Unlike most science centres, it has no permanent...

 in Dublin from April through June 2011. The display, designated as its 2011 'flagship exhibition' by the Science Gallery, aims to show the future of humans and technology. Within this theme, the Euthanasia Coaster highlights the issues that come with life extension
Life extension
Life extension science, also known as anti-aging medicine, experimental gerontology, and biomedical gerontology, is the study of slowing down or reversing the processes of aging to extend both the maximum and average lifespan...

.
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