[Sugar-devel] Physics Roadmap

[Gary C Martin]

On 17 Jun 2009, at 06:29, Edward Cherlin wrote:

> Did you look at my Turtle Art version of Alan Kay's third-grade  
> gravity lesson?
>
> http://wiki.sugarlabs.org/go/File:Gravity.odt

I had a read, but it didn't get me very far, sorry – competing with  
an Alan Kay presentation is always going to be tough :-) Regarding  
Physics, it's more a sandbox for making weird and wonderful little  
mechanical devices; but specifically regarding gravity, I think there  
is a nice feature I'd like to try and find a way add as some point,  
'object trails'. With this you could roll a ball off a cliff edge and  
see the motion curve left behind. Would be quite easy to add a grid  
overlay to allow measurement. I guess an optional gird would also  
allow building other more accurate experiments (i.e. I just made 3  
pendulums of different lengths to see the shortest pendulum swing  
faster; and that using a larger mass weight did not affect frequency).

--Gary

> On Mon, Jun 8, 2009 at 11:39 AM, Brian Jordan<bcjordan at gmail.com>  
> wrote:
>> Attaching Sugar Devel (people who want to be involved with Physics
>> development  might be on there).
>>
>>
>> On Mon, Jun 8, 2009 at 5:28 AM, Asaf Paris  
>> Mandoki<asafpm at gmail.com> wrote:
>>> Hi,
>>>
>>> I've managed to get my development environment working and started  
>>> hacking
>>> the Physics activity. I added a "pin" button and a "motor" button  
>>> so these
>>> features aren't hidden anymore. I wanted to add a Play/Pause  
>>> button but it's
>>> not as easy as I thought. It is much better to control time flow  
>>> with the
>>> keyboard but I think it would be good to have a way to make the  
>>> feature
>>> explicit. I'm planing on committing my changes to the main branch  
>>> as soon as
>>> I come up with a nicer icon for the motor button.
>>>
>>
>> Commit it :)
>>
>> Would anyone like to help with making menu icons?
>>
>>> After I'm done with that I'm thinking on starting with the journal
>>> integration. I will clone the main branch and work over there.  
>>> I've seen
>>> some suggestions for the scene file format at
>>> http://wiki.laptop.org/go/Physics_File_Format . Is there a handy  
>>> XML library
>>> I could use?
>>>
>>> I see the Physics component is now on dev.sugarlabs.org. I've  
>>> added a bug I
>>> found, should I add the features I would like to implement in the  
>>> future? .
>>> What is the best way for communicating regarding this project? Who  
>>> are the
>>> people involved right now?
>>>
>>> Thanks,
>>> Asaf
>>>
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>
>
>
> -- 
> Silent Thunder (默雷/धर्ममेघशब्दगर्ज/ 
> دھرممیگھشبدگر ج) is my name
> And Children are my nation.
> The Cosmos is my dwelling place, The Truth my destination.
> http://earthtreasury.org/worknet (Edward Mokurai Cherlin)
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