[open-science] Fwd: Call for OpenCourseWare to be published at SlideWiki.org

[Paweł Szczęsny]

On Sun, Feb 24, 2013 at 4:15 PM, Piotr Migdal <pmigdal at gmail.com> wrote:
> Side note: when it comes to licensing, can anyone point to a good layman introduction what is considered a derivate work?
> In particular, when when I use (say) one slide with CC BY SA in a collection of 50 slides, does one need to license this particular slide with CC BY SA (with all modifications) or the whole presentation?

Anybody correct me if I'm wrong, but the presentation is a remix and
Share-Alike (or ND) conditions of licenses of the remixed works apply
to the remix: http://wiki.creativecommons.org/FAQ#Can_I_combine_works_that_use_different_Creative_Commons_licenses_into_my_work.3F

So "SA" enforces the license of the whole presentation.

Cheers
PS