This simulation is intended to demonstrate the concepts behind the disk/washer method for calculating Volumes of Revolution.
[b]NOTE: If you have trouble opening the downloaded file by double-clicking,[/b] try exiting Geogebra completely. Then re-open to a brand new file, and use File:Open to access the downloaded file. I have to do this even on the original file on my computer. I've never encountered this type of bug/error before in Geogebra and I'm quite puzzled by it, but this workaround seems to work with no negative consequences.