Shifting cultivation is the process where a forested area is cleared, burnt, and cultivated, then left abandoned to allow natural regrowth before beginning again.
All Wikipedia text
is available under the
terms of the GNU Free Documentation License
Search Encyclopedia
Search over one million articles, find something about almost anything!
... site at www.cl.cam.ac.uk/~rja14/tcpa-faq.html/ for a clear discussion of two prominent proposals.
Examples of existing "digital rights management" and "copy protection" ...