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IMPOSSIBLE OBJECT (Minecraft Animation)
IMPOSSIBLE OBJECT (Minecraft Animation)
Published: 2015/07/13
Channel: CaptainSparklez
The Impossible Dove Tail Box
The Impossible Dove Tail Box
Published: 2017/04/19
Channel: Mr.Puzzle
Impossible objects compilation
Impossible objects compilation
Published: 2014/07/23
Channel: Xa15Sci0
The Impossible Object!
The Impossible Object!
Published: 2014/06/12
Channel: Scam School
5 Most Impossible Objects
5 Most Impossible Objects
Published: 2016/07/01
Channel: Mind Circle
Impossible Object
Impossible Object
Published: 2013/06/26
Channel: Deirones
Impossible or illusion??
Impossible or illusion??
Published: 2016/09/28
Channel: Shop built
Impossible Object Optical Illusion
Impossible Object Optical Illusion
Published: 2009/11/04
Channel: greeenpro
Impossible Mysterious Objects in Syria
Impossible Mysterious Objects in Syria
Published: 2016/09/14
Channel: vlad9vt
Christine Object Lesson Impossible.m4v
Christine Object Lesson Impossible.m4v
Published: 2011/10/06
Channel: OostVT
Minecraft - Impossible Shapes
Minecraft - Impossible Shapes
Published: 2015/10/31
Channel: Karott2000
Impossible Objects
Impossible Objects
Published: 2011/03/02
Channel: Sonal Patel
Blind spots, illusions, and impossible objects make it hard to believe your eyes!
Blind spots, illusions, and impossible objects make it hard to believe your eyes!
Published: 2015/12/17
Channel: science with bobert
Impossible Balls Illusion!
Impossible Balls Illusion!
Published: 2011/01/14
Channel: brusspup
Impossible Objects v5 - various designs
Impossible Objects v5 - various designs
Published: 2014/04/13
Channel: Bytele
The Impossible Object
The Impossible Object
Published: 2011/06/23
Channel: TyYann
The Impossible
The Impossible 'Cardhenge'
Published: 2015/01/28
Channel: Grand Illusions
The Book Of Impossible Objects from Klutz
The Book Of Impossible Objects from Klutz
Published: 2013/02/22
Channel: ToyDirectory
Impossible Object Found On Mars
Impossible Object Found On Mars
Published: 2014/11/30
Channel: Paranormal Crucible
Impossible objects v2 - Wooden Stuff
Impossible objects v2 - Wooden Stuff
Published: 2012/07/02
Channel: Bytele
The Impossible Object solution
The Impossible Object solution
Published: 2011/07/04
Channel: TyYann
construct an impossible object out of legos a science with bobert video short
construct an impossible object out of legos a science with bobert video short
Published: 2015/12/21
Channel: science with bobert
Nothing is Impossible Object Lesson - Stepping Through Paper
Nothing is Impossible Object Lesson - Stepping Through Paper
Published: 2017/03/21
Channel: Go Ye Kids
Book of Impossible Objects with Incredible T-Rex illusion!
Book of Impossible Objects with Incredible T-Rex illusion!
Published: 2013/12/29
Channel: IncredibleScience
How to Draw a Complex Impossible Shape
How to Draw a Complex Impossible Shape
Published: 2013/04/25
Channel: Jonathan Harris
impossible objects
impossible objects
Published: 2009/02/18
Channel: Killgore49
Impossible Object !?!?!
Impossible Object !?!?!
Published: 2015/09/15
Channel: KyleCOOLman
Using Solidworks to create an impossible object
Using Solidworks to create an impossible object
Published: 2011/04/05
Channel: w19design
Impossible Figures
Impossible Figures
Published: 2008/11/04
Channel: xOpticalillusionx
Impossible objects v4 - Hypercard
Impossible objects v4 - Hypercard
Published: 2012/07/04
Channel: Bytele
#06 2012 - Impossible Object? - a tribute to...
#06 2012 - Impossible Object? - a tribute to...
Published: 2011/09/25
Channel: metalfist616
Simple Homemade - Make a real life impossible object illusion!
Simple Homemade - Make a real life impossible object illusion!
Published: 2015/07/04
Channel: Simple Homemade - WeeklyProjects & Experiments
3D Paper Illusion - Impossible Object - 1
3D Paper Illusion - Impossible Object - 1
Published: 2012/10/01
Channel: zero20vt
Minecraft - Impossible Objects
Minecraft - Impossible Objects
Published: 2013/10/26
Channel: Karott2000
The Impossible Spark Plug and Bolt - How to get them out!
The Impossible Spark Plug and Bolt - How to get them out!
Published: 2017/08/31
Channel: Mr.Puzzle
HOW TO MAKE AN IMPOSSIBLE OBJECT OUT OF WOOD
HOW TO MAKE AN IMPOSSIBLE OBJECT OUT OF WOOD
Published: 2016/09/17
Channel: Geek Out Hobbies
Fujiya & Miyagi - Impossible Objects of Desire
Fujiya & Miyagi - Impossible Objects of Desire
Published: 2017/06/09
Channel: FujiyaandMiyagiVEVO
Solutions to Impossible Objects 1
Solutions to Impossible Objects 1
Published: 2011/02/06
Channel: Rxe08
Impossible Objects CBAM Composite Based Additive Manufacturing
Impossible Objects CBAM Composite Based Additive Manufacturing
Published: 2016/01/15
Channel: Larry Kaplan
How To Draw An Impossible Triangle Optical Illusion - Impossible Shapes
How To Draw An Impossible Triangle Optical Illusion - Impossible Shapes
Published: 2015/08/28
Channel: My Drawing Tutorials
impossible objects
impossible objects
Published: 2008/11/26
Channel: helgamarie2008
Impossible Object Revealed
Impossible Object Revealed
Published: 2008/01/15
Channel: ItsScottReed
IMPOSSIBLE HIDDEN OBJECTS TO TEST YOUR BRAIN!!
IMPOSSIBLE HIDDEN OBJECTS TO TEST YOUR BRAIN!!
Published: 2017/04/19
Channel: Vin Win
How to draw an impossible object
How to draw an impossible object
Published: 2010/01/30
Channel: myaka28to
VERY STRANGE THINGS - Impossible Object
VERY STRANGE THINGS - Impossible Object
Published: 2017/07/06
Channel: MrLawrenceLeung
Impossible objects #1 - ImpossiBottles
Impossible objects #1 - ImpossiBottles
Published: 2012/07/01
Channel: Bytele
DESAFIO DO OBJETO IMPOSSÍVEL
DESAFIO DO OBJETO IMPOSSÍVEL
Published: 2017/07/25
Channel: INVENTOR 2000
The Book of Impossible Objects from Klutz
The Book of Impossible Objects from Klutz
Published: 2013/02/07
Channel: TTPM Toy Reviews
Blender 3D Impossible Object Animation
Blender 3D Impossible Object Animation
Published: 2011/04/12
Channel: 300SpartanX
Impossible Objects
Impossible Objects' CBAM Pilot Project
Published: 2017/05/09
Channel: 3DPrint.com
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WIKIPEDIA ARTICLE

From Wikipedia, the free encyclopedia
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An impossible object (also known as an impossible figure or an undecidable figure) is a type of optical illusion. It consists of a two-dimensional figure which is instantly and subconsciously interpreted by the visual system as representing a projection of a three-dimensional object.

In most cases the impossibility becomes apparent after viewing the figure for a few seconds. However, the initial impression of a 3D object remains even after it has been contradicted. There are also more subtle examples of impossible objects where the impossibility does not become apparent spontaneously and it is necessary to consciously examine the geometry of the implied object to determine that it is impossible.

The unsettling nature of impossible objects occurs because of our natural desire to interpret 2D drawings as three-dimensional objects. This is why a drawing of a Necker cube would be most likely seen as a cube, rather than "two squares connected with diagonal lines, a square surrounded by irregular planar figures, or any other planar figure." With an impossible object, looking at different parts of the object makes one reassess the 3D nature of the object, which confuses the mind.[1]

Impossible objects are of interest to psychologists, mathematicians and artists without falling entirely into any one discipline.

Notable examples[edit]

Notable impossible objects include:

  • Impossible cube — The impossible cube was invented by M.C. Escher for Belvedere, a lithograph in which a boy seated at the foot of the building holds an impossible cube.[2][3]
  • Penrose stairs — The Penrose stairs was created by Lionel Penrose and his son Roger Penrose.[4] A variation on the Penrose triangle, it is a two-dimensional depiction of a staircase in which the stairs make four 90-degree turns as they ascend or descend yet form a continuous loop, so that a person could climb them forever and never get any higher.
  • Penrose triangle (Tribar) — The Penrose triangle was first created by the Swedish artist Oscar Reutersvärd in 1934. The mathematician Roger Penrose independently devised and popularised it in the 1950s, describing it as "impossibility in its purest form".
  • Impossible trident (or devil's tuning fork) — The Blivet has three cylindrical prongs at one end which then mysteriously transform into two rectangular prongs at the other end.[5]
Examples of impossible objects
Oscar Reutersvärd's optical illusion (1934) 

History[edit]

An early example of an impossible object comes from Apolinère Enameled, a 1916 advertisement painted by Marcel Duchamp. It depicts a girl painting a bed-frame with white enamelled paint, and deliberately includes conflicting perspective lines, to produce an impossible object. To emphasise the deliberate impossibility of the shape, a piece of the frame is missing.

A 3D-printed version of the Reutersvärd Triangle illusion, its appearance created by a forced perspective.

Swedish artist Oscar Reutersvärd was one of the first to deliberately design many impossible objects. He has been called "the father of impossible figures".[6] In 1934 he drew the Penrose triangle, some years before the Penroses. In Reutersvärd's version the sides of the triangle are broken up into cubes.

In 1956, British psychiatrist Lionel Penrose and his son, mathematician Roger Penrose, submitted a short article to the British Journal of Psychology titled "Impossible Objects: A Special Type of Visual Illusion". This was illustrated with the Penrose triangle and Penrose stairs. The article referred to Escher, whose work had sparked their interest in the subject, but not Reutersvärd, of whom they were unaware. The article was published in 1958.[4]

From the 1930s onwards, Dutch artist M.C. Escher produced many drawings featuring paradoxes of perspective gradually working towards impossible objects.[6] In 1957, he produced his first drawing containing a true impossible object: Cube with Magic Ribbons. He produced many further drawings featuring impossible objects, sometimes with the entire drawing being an impossible object. Waterfall and Belvedere are good examples of impossible constructions. His work did much to draw the attention of the public to impossible objects.

Some contemporary artists are also experimenting with impossible figures, for example, Jos de Mey, Shigeo Fukuda, Sandro del Prete, István Orosz (Utisz), Guido Moretti, Tamás F. Farkas, Mathieu Hamaekers, and Kokichi Sugihara.

Constructed impossible objects[edit]

Although possible to represent in two dimensions, it is not geometrically possible for such an object to exist in the physical world. However some models of impossible objects have been constructed, such that when they are viewed from a very specific point, the illusion is maintained. Rotating the object or changing the viewpoint breaks the illusion, and therefore many of these models rely on forced perspective or having parts of the model appearing to be further or closer than they actually are.

The notion of an "interactive impossible object" is an impossible object that can be viewed from any angle without breaking the illusion.[7]

Views of a sculpture (in East Perth, Australia) from different angles. As the view rotates, a Penrose triangle appears to form.

See also[edit]

References[edit]

  1. ^ "Impossible Figures in Perceptual Psychology". Fink.com. Retrieved 11 February 2014. 
  2. ^ Bruno Ernst (Hans de Rijk) (2003). "Selection is Distortion". In Schattschneider, D.; Emmer, M. M. C. Escher's Legacy: A Centennial Celebration. Springer. pp. 5–16. ISBN 978-3-540-28849-7. 
  3. ^ Barrow, John D (1999). Impossibility: The Limits of Science and the Science of Limits. Oxford University Press. p. 14. ISBN 9780195130829. 
  4. ^ a b Penrose, LS; Penrose, R. (1958). "Impossible objects: A special type of optical illusion". British Journal of Psychology. 49 (1): 31–33. doi:10.1111/j.2044-8295.1958.tb00634.x. PMID 13536303. 
  5. ^ "Impossible Fork". Wolfram Research. Retrieved 10 February 2014. 
  6. ^ a b Seckel, Al (2004). Masters of Deception: Escher, Dalí & the Artists of Optical Illusion. Sterling Publishing Company. p. 261. ISBN 1402705778. 
  7. ^ Khoh, Chih W.; Kovesi, Peter (February 1999). "Animating Impossible Objects". Retrieved 10 February 2014. 

Further reading[edit]

External links[edit]

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