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This site is a very interesting site to browse about in. Practically everything in it is interactive. All the topics that I visited seemed to be related to the physics that I am currently taking. Interacting with different exercises I can see the relationships between the components within the experiment to best see how the formulas are put together. I can see that if I add higher number of one element it changes very little. Howevevr, if I change the element to a lower number then the outcome changes dramtically. That is why this is an interesting site because it shows many relationship.
Navigating through the site was very quick and easy. Every link seemed to come up on the screen with no trouble what so ever. Basically for each interaction there are no right or wrong answers so there is no need for a place to find the correct answers. When browsing around it would probably be better to have some idea of what your looking at so t would be better if byou had some kind of physics backround or else this site wouldn't do you much good.
12 years ago
As a student using this site I found that it was helpful in visualizing difficult physics applications. The interactive models allow the user to change variables and other functions to see the change in relationships. The material within the site is educationally significant because it builds upon key physics applications and then clearly shows the relationship visually. The site is a great teaching and learning material because of this fact.
The site was easy to use technically with the exception that the materials have to be downloaded as shareware and self-extracting zip files which can only be installed in Windows95. The model programs can be seen before downloading as a snapshot, though.