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ERIC Number: EJ366676
Record Type: CIJE
Publication Date: 1988
Pages: N/A
Abstractor: N/A
ISBN: N/A
ISSN: N/A
EISSN: N/A
Feedback in Action--The Mechanism of the Iris.
Pingnet, B.; And Others
Physics Education, v23 n1 p32-35 Jan 1988
Describes two demonstration experiments. Outlines a demonstration of the general principle of positive and negative feedback and the influence of time delays in feedback circuits. Elucidates the principle of negative feedback with a model of the iris of the eye. Emphasizes the importance of feedback in biological systems. (CW)
Descriptors: Behavior, Biofeedback, Biology, Electronic Equipment, Eye Movements, Eyes, Feedback, Optics, Physics, Pupillary Dilation, Science Activities, Science Education, Science Experiments, Secondary School Science, Teaching Methods
Publication Type: Journal Articles; Reports - Descriptive; Guides - Classroom - Teacher
Education Level: N/A
Audience: Practitioners
Language: English
Sponsor: N/A
Authoring Institution: N/A
Grant or Contract Numbers: N/A