There is a reference of wonderful Java applets run in the web browser.
However I cannot run them as the source code seems to be lost. Even if I unblock the security settings.
The applets were developed by using Easy Java Simulation by Francisco Esquembre, professor of Murcia University, Spain.
Any idea how these can be run and if they are available in Open Source Physics.
Applets if am looking for:
Global picture of tidal forces and the force at a fixed point Time variations of tidal forces at different fixed points Rotating tidal forces as mutually orthogonal oscillating forces Two systems of oscillating forces Standing waves driven by the oscillating forces Both oscillating waves and the circulating tidal wave The tidal wave over resonance Tidal friction and the phase delay
If you still have access to the Java applets' `.jar` or `.class` files (which would have been used in the web browser), planet clicker you can try running them locally on your computer. Java applets require the Java Runtime Environment (JRE) to run, and Java 8 is the last version that officially supports applets.
It seems likely that the location of the tide applet files can be guessed.
In the case of the material by professor Butikov about gyroscopic precession (http://butikov.faculty.ifmo.ru/Applets/Gyroscope.html):
That page also provides an explicit link to the .jar file (http://butikov.faculty.ifmo.ru/Applets/Gyroscope.jar). I have JRE 8 (Java Runtime Environment 8), and the applet opens and it runs.
However, in the case of the ocean tides material (http://butikov.faculty.ifmo.ru/Projects/Tides1.html#_applet) there is no explicit link to the .jar file.
Given that the 'gyroscope.jar' file is still available it seem plausible that the tide_1.jar file is still available, the problem is: how to guess the URL for it.
The attached .png file shows a screenshot of the html source code of the 'tide_1' page.
This is the simplest guess for the location of the tide_1.jar file: http://butikov.faculty.ifmo.ru/Applets/tide_1.jar But that guess is not correct: ' request was not found on this server'.
Still, I think it is worth it to try several more guesses for the URL of the .jar file. The .jar file is likely to be close by in the directory tree. If it can be downloaded it seems plausible that JRE 8 will run it, just as JRE 8 runs the gyroscope.jar file.
In the browsers Chrome, Edge, Firefox and Opera the Ctrl+U keyboard input opens the current page's html source in a new browser tab.
