6J11.60 - Perception - Depth Perception

Code Number:
Demo Title:
Perception - Depth Perception
Optical Illusion
Area of Study:
Optics, Human Biology
Elongated House.

Assemble the house.  When looking at the room from above it is quite obvious that the dimensions of the room, windows, and floor are not square.  However, when you look into the room through the hole that is in one of the walls, the dimension of all object seems to be perfectly square.

  • Bradley W. Carroll, "Gaining Perspective on Paintings and Photographs: A Study in the Optics of Seeing", TPT, Vol. 55, #7, Oct. 2017, p. 413.
  • Christopher Sirola, "Depth Perception", TPT, Vol. 55, #3, Mar 2017, p. 188.
  • Chris Chiaverina, "Making a Little Room for Science", TPT, Vol. 46, #8, Nov. 2008, p. 507.
  • Sara Kiley Watson, "Peter Jackson Made Hobbits Look so Tiny with This Mind Trick", Popular Science, Vol. 290, Fall 2018, p. 120.
  • Don Rathjen and Paul Doherty, "Hoop Nightmares", Square Wheels, 2002, p. 25.
  • Paul Doherty and Don Rathjen, "Thread the Needle", The Cheshire Cat, p. 101.
  • Robert J. Brown, "Bad Aim", 200 Illustrated Science Experiments for Children, p. 158 - 159.
  • Martin Keen, "Experiments With Human Senses", Let's Experiment, 1968, p. 153 - 155.
  • Brenda Walpole, 175 Science Experiments to Amuse and Amaze Your Friends, p. 148 - 151.
  • Jane Bingham, "Surprising Senses", The Usborne Book of Science Experiments, p. 12 - 13.
  • Ron Hipschman, "Recipe No. 161: Size & Distance, Exploratorium Cookbook III, p. 161-1 - 165-2.
  • Raymond Bruman and the Exploratorium Staff, "Recipe No. 49: Stereo Rule", Exploratorium Cookbook I, p. 49-1 - 49-2.
  • Tik Liem, "17.9. The Swaying Cardboard", Investigation to Science Inquiry, p. 439.

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