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Direct linkKrans, Jacob; Gilbert, Cole; Hoy, Ron – Advances in Physiology Education, 2006
In this article, we detail how to produce two inexpensive micromanipulators that offer high precision (approximately 25 micrometers) along a single axis of movement. The more expensive of the designs provides improved versatility along multiple axes. Both manipulators offer substantial savings over commercially available micromanipulators with…
Descriptors: Physiology, Skilled Workers, Entomology, Laboratory Equipment
Peer reviewedHorner, David T.; Robinson, K. Desix – Teaching of Psychology, 1997
Discusses the size-weight illusion that occurs when a person lifts two equal-weight objects differing in size and perceives the larger object as lighter than the small object. Describes several inexpensive techniques for demonstrating the size-weight illusion and reviews some relevant issues concerning this phenomena. (MJP)
Descriptors: Class Activities, Cognitive Psychology, Educational Experiments, Error Patterns
Peer reviewedCavalier, Robert; Wesp, Richard – Teaching of Psychology, 1997
Maintains that having students estimate the size and width of a class waste paper can (placed on a desk) is a simple and effective way of illustrating perceptual distortion. Tests show that people will consistently overestimate the height of the can, allowing for a useful discussion on sensory distortion. (MJP)
Descriptors: Demonstrations (Educational), Educational Experiments, Error Patterns, Higher Education
