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written by Kevork Spartalian
A Physlet-based simulation demonstrating how the eye perceives size. Two distant light sources are shown. The user can move the sources without changing their distance from the eye. The effect of the motion on the image on the retina is shown.

Please note that this resource requires Java Applet Plug-in.
Subjects Levels Resource Types
- Geometrical Optics
= Thin Lens
- The Eye
- Lower Undergraduate
- High School
- Middle School
- Instructional Material
= Interactive Simulation
- Audio/Visual
= Movie/Animation
Intended Users Formats Ratings
- Learners
- Educators
- application/java
- text/html
  • Currently 3.0/5

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Additional Information
Physics Front This resource was featured by the Physics Front collection from July 19, 2009 until September 1, 2009. View the feature here!

Access Rights:
Free access
Does not have a copyright, license, or other use restriction.
IPLS, angular separation, eye, how the eye perceives, retina, simulation, size
Record Cloner:
Metadata instance created July 19, 2008 by Taha Mzoughi
Record Updated:
July 24, 2009 by Bruce Mason
Last Update
when Cataloged:
November 6, 2002
ComPADRE is beta testing Citation Styles!

Record Link
AIP Format
K. Spartalian, (2002), WWW Document, (
K. Spartalian, The Eye As A Lens (Part 1), (2002), <>.
APA Format
Spartalian, K. (2002, November 6). The Eye As A Lens (Part 1). Retrieved July 9, 2020, from
Chicago Format
Spartalian, Kevork. The Eye As A Lens (Part 1). November 6, 2002. (accessed 9 July 2020).
MLA Format
Spartalian, Kevork. The Eye As A Lens (Part 1). 2002. 6 Nov. 2002. 9 July 2020 <>.
BibTeX Export Format
@misc{ Author = "Kevork Spartalian", Title = {The Eye As A Lens (Part 1)}, Volume = {2020}, Number = {9 July 2020}, Month = {November 6, 2002}, Year = {2002} }
Refer Export Format

%A Kevork Spartalian
%T The Eye As A Lens (Part 1)
%D November 6, 2002
%O application/java

EndNote Export Format

%0 Electronic Source
%A Spartalian, Kevork
%D November 6, 2002
%T The Eye As A Lens (Part 1)
%V 2020
%N 9 July 2020
%8 November 6, 2002
%9 application/java

Disclaimer: ComPADRE offers citation styles as a guide only. We cannot offer interpretations about citations as this is an automated procedure. Please refer to the style manuals in the Citation Source Information area for clarifications.

Citation Source Information

The AIP Style presented is based on information from the AIP Style Manual.

The APA Style presented is based on information from APA Electronic References.

The Chicago Style presented is based on information from Examples of Chicago-Style Documentation.

The MLA Style presented is based on information from the MLA FAQ.

This resource is stored in 2 shared folders.

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The Eye As A Lens (Part 1):

Is Supplemented By The Eye As A Lens (Part 2)

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