Re: JPL Planetary Ephemeris DE405

On 03/01/2018 10:34 AM, Ole Streicher wrote: > Source code is an entity, but observation is an activity, so it cannot be > source code. technically, how the observation is recorded is the source code. But without that observation, there is no source code. jonathon

Re: JPL Planetary Ephemeris DE405

Francesco Poli writes: > I wrote an > [essay](https://www.inventati.org/frx/essays/softfrdm/whatissource.html) > on this topic. > > [...] >> Is it the preferred form of the work for making modifications (GPL def)? >> >> Clearly not. The preferred form would be to

Re: JPL Planetary Ephemeris DE405

On Thu, 01 Mar 2018 11:29:03 +0100 Ole Streicher wrote: > Ben Finney writes: > >> for example, there is no "source code" for DE405. There is just no > >> "preferred way to edit" for such a database -- these database are > >> created from observation and not thought to be

Re: JPL Planetary Ephemeris DE405

An expression of which observations may be subject ot copyright, but the observations themselves, (i.e., data) are not. It seems an expression of data or source code may be subject to protection, but the information and algorithm are not sunject to copyright. The latter may have implications the

Re: JPL Planetary Ephemeris DE405

jonathon writes: >> Data is fundamentally different from software: for example, there is >> no "source code" for DE405. > > The source code for the ephemeris is physical observations of the stars, > planets, and other bodies in it. Source code is an entity, but

Re: JPL Planetary Ephemeris DE405

Ben Finney writes: >> for example, there is no "source code" for DE405. There is just no >> "preferred way to edit" for such a database -- these database are >> created from observation and not thought to be edited by hand. > > The freedoms that the recipients are to be

Re: JPL Planetary Ephemeris DE405

jonathon writes: > The source code for the ephemeris is physical observations of the stars, > planets, and other bodies in it. The physical observations are not a work of expression; likewise, my physical observation of a mountain is not a work of expression. They may

Re: JPL Planetary Ephemeris DE405

On 02/28/2018 12:17 PM, Ole Streicher wrote: > Again, as shown here: this license covers *software*, not *data*. As far as copyright law is concerned, there is no difference between data and software. For some programming languages, there is no difference between data and code. > Data is