[Data-modeling] Astronomy: Discovery Properties

[Danny Hillis]

I was trying to imagine a query that would access the "discovery  
date", and was imagining the use case of plotting a timeline of  
discoveries, inventions, etc. in the context of other historical  
events.  If there were topics for historical events, then content of  
the timeline could be data driven, selected by the categories or  
genres of the topics. Otherwise, I don't see how to do it without an  
ad-hoc query for each type discovery, invention, etc.
-Danny

On May 5, 2008, at 4:35 PM, Jeff Prucher wrote:

> To model it as an event, assuming that this means to use the "event"  
> type to
> record information about the discovery of an object, requires the  
> creation
> of topics like "The Discovery of Pluto". But all using the "event"  
> type gets
> us is the start and end dates, and an inclusion/included by tree,  
> the latter
> of which probably doesn't apply. This actually seems like more work  
> for less
> payoff than just using the properties "discovered by" and "discovery  
> date",
> since "discovered by" would have to be on a new type ("astronomical
> discovery") that included the type "event". Unless you had something  
> else in
> mind, in which case kindly ignore this message.
>
> Jeff
>
>
> > -----Original Message-----
> > From: data-modeling-bounces at freebase.com
> > [mailto:data-modeling-bounces at freebase.com] On Behalf Of
> > Gordon Mackenzie
> > Sent: Monday, May 05, 2008 4:00 PM
> > To: Freebase data modeling mailing list
> > Subject: Re: [Data-modeling] Astronomy: Discovery Properties
> >
> > No I haven't really considered it as an event.
> >
> > Would it be valuable?
> >
> > One thing I understand is that there can be multiple
> > discoverer's for asteroid's & comets over a period of time
> > (usually within days of each other).
> >
> > I have no knowledge on event modeling though. Do you have an
> > existing example or a model in mind?
> >
> > ~ Gordon
> >
> > <<< gordon at metaweb.com >>>
> >
> >
> >
> > On May 3, 2008, at 11:18 PM, Danny Hillis wrote:
> >
> > >
> > > On May 2, 2008, at 6:10 PM, Gordon Mackenzie wrote:
> > >>
> > >> So Celestial Object would have added specifically:
> > >>
> > >> Discoverer, Discovery Date, Discovery Method, Discovery status,
> > >> Discovery Institution/organization
> > >>
> > >> And then remove/move the data for the related discovery
> > properties in
> > >> Planet/Asteroid/Comet  types to the equivalents in Celestial  
> Body.
> > >> Planet type might have both jupiter and earth-based radius
> > and mass
> > >> properties.
> > >>
> > >
> > > Gordon,
> > > Have you thought about how the discovery of a planet get
> > modeled as an
> > > Event?
> > > -Danny
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