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Computer Program Detail Page

Item Picture
written by Andrew Duffy
The Light and Shadow Model shows light that either passes through a mask with a hole in it, or it is blocked by an object, as it travels to a screen on the right. The user can turn on and off two light bulbs (red and blue) and drag the bulbs around the screen to change their positions. Investigate how the patterns of light and shadows change as you move the bulbs, the mask or object, and/or the screen, and as you change the size of the mask or object.

The Light and Shadow Model was created using the Easy Java Simulations (EJS) modeling tool.  It is distributed as a ready-to-run (compiled) Java archive.  Double clicking the ejs_bu_Light_and_Shadow.jar file will run the program if Java is installed.

Please note that this resource requires at least version 1.5 of Java (JRE).
View the source code document attached to this resource
Subjects Levels Resource Types
Optics
- Color
- Geometrical Optics
= Straight Line Propagation
- High School
- Middle School
- Elementary School
- Lower Undergraduate
- Upper Undergraduate
- Instructional Material
= Curriculum support
= Interactive Simulation
- Audio/Visual
= Movie/Animation
Intended Users Formats Ratings
- Learners
- Educators
- application/java
  • Currently 5.0/5

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Mirror:
http://physics.bu.edu/~duffy/Ejs/…
Access Rights:
Free access
License:
This material is released under a GNU General Public License Version 3 license.
Rights Holder:
Andrew Duffy, Boston University
Keywords:
color mixing, light, shadow
Record Cloner:
Metadata instance created April 21, 2010 by Anne Cox
Record Updated:
June 10, 2014 by Andreu Glasmann
Last Update
when Cataloged:
April 21, 2010
ComPADRE is beta testing Citation Styles!

Record Link
AIP Format
A. Duffy, Computer Program LIGHT AND SHADOW MODEL (2010), WWW Document, (http://www.compadre.org/Repository/document/ServeFile.cfm?ID=9983&DocID=1612).
AJP/PRST-PER
A. Duffy, Computer Program LIGHT AND SHADOW MODEL (2010), <http://www.compadre.org/Repository/document/ServeFile.cfm?ID=9983&DocID=1612>.
APA Format
Duffy, A. (2010). Light and Shadow Model [Computer software]. Retrieved July 31, 2014, from http://www.compadre.org/Repository/document/ServeFile.cfm?ID=9983&DocID=1612
Chicago Format
Duffy, Andrew. "Light and Shadow Model." http://www.compadre.org/Repository/document/ServeFile.cfm?ID=9983&DocID=1612 (accessed 31 July 2014).
MLA Format
Duffy, Andrew. Light and Shadow Model. Computer software. 2010. Java (JRE) 1.5. 31 July 2014 <http://www.compadre.org/Repository/document/ServeFile.cfm?ID=9983&DocID=1612>.
BibTeX Export Format
@misc{ Author = "Andrew Duffy", Title = {Light and Shadow Model}, Month = {April}, Year = {2010} }
Refer Export Format

%A Andrew Duffy
%T Light and Shadow Model
%D April 21, 2010
%U http://www.compadre.org/Repository/document/ServeFile.cfm?ID=9983&DocID=1612
%O application/java

EndNote Export Format

%0 Computer Program
%A Duffy, Andrew
%D April 21, 2010
%T Light and Shadow Model
%8 April 21, 2010
%U http://www.compadre.org/Repository/document/ServeFile.cfm?ID=9983&DocID=1612


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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 Style.org: Electronic References.

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Light and Shadow Model:

Is Based On Easy Java Simulations Modeling and Authoring Tool

The Easy Java Simulations Modeling and Authoring Tool is needed to explore the computational model used in the Light and Shadow Model.

relation by Anne Cox
Is the Basis For Ejs Open Source Light and Shadow Model java applet

changes made:

design with layout to my usual specification
added source 3
design intensity sliders, for the effect of light and shadow when the light overlap
enjoy!

relation by wee lookang

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