Entropy

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The purpose of this App is to gain a better understanding of Physics through computer simulations. Includes simulations of:

- Expanding Gas in a Container

- Gravity

- Expanding Universe

- Random Walk

Run the Simulations, Observe, and Learn.

Run the Expanding Gas in a Container simulation, and observe:

- increase in entropy when the gas is released,

- shrink the container to observe Adiabatic heating,

- how entropy can occasionally spontaneously decrease.

Run the Gravity simulation, and observe:

- orbits of 2 and 3 body systems,

- impact a rogue star would have on our solar system,

- solar wobble, used by astronomers to detect extrasolar planets,

- view planet orbits as seen from the Earth, observe retrograde motion,

- see how gravity boost works.

Run the Expanding Universe simulation, and observe:

- rapid expansion during the early universe,

- much of the universe lies beyond what can be seen from our vantage point,

- as the universe ages the size of the observable universe shrinks towards zero.

Refer to http://wikiscience101.sthaid.org/index.php?title=Entropy_App for additional information.

You are encouraged to download the source code and add your own simulations. The source code is available at https://github.com/sthaid/proj_entropy.git. Refer to the README for instructions on how to build this App for Linux or Android. This App is coded in C, and utilizes the Simple DirectMedia Layer cross-platform development library. The Random Walk simulation is a good template to use for new simulations. Suggestions for new simulations are: Elastic Collisions, Nuclear Fission Chain Reaction, and Bacterial Life.