Summary of things to ask students to do:  

- Read density images (txt files) into Python
- Compute density gradient at each pixel in the image for a bunch of images
- Make schlieren movie out of the density gradient files
- For density images between 1 - 10 us cut the image over the central plane of the kernel and plot Density vs. Radius. Obtain Temperature vs. Radius for a given pressure of 1 atm using equation of state.


Read density data.
Compute density gradient for each image
Make Schlieren image for each