No subject


Sun May 31 08:28:51 EDT 2009


I'm not quite sure what real advantage does it give us.

> It's likely going to be the end of the week before I can spend much time =
on
> Physics.
Ok, don't worry.

>I can see the need for a "World" tab,
> and "Material" tab, so that we don't overload on too many features all at
> once (i.e a young kid could ignore World and Material tabs, and just get =
on
> with building things as they do now).
We could also think of a "Tools" tab were we can put all the data
acquisition tools such as the trail tool and maybe the save/clear
background options, also we could have the background "paper" move in
some direction so some sort of plots can be made. (This is just a soup
of ideas)


>
>> I was also thinking on another new feature. What about joint's
>> displaying the tension they're in by changing their color?
>
> Ooh, yes I like that one, colour would be good, black --> red? Have you h=
ad
> a look at the old Bridge Activity? It did this for the "rivet" colour.
I may have seen It. I also saw it in another Bridge Building Game.

http://www.crypticsea.com/images/bbg1.jpg

>
>> We could even break the joints if tension is too high.
>
> We could. But perhaps save this for when we have more material controls e=
lse
> where, quick thought is that once we have a "Materials" tab, there would =
be
> radio buttons for solid links (the default), and breakable links... (and
> could we manage a 3rd elastic/stretchy links in the code? That's another
> nice way to store potential energy in a contraption).
I agree on this.


>
> P.P.S. Did you like the attempt at illustrating longitudinal wave
> prorogation? It's a but more tricky to set-up than the transverse wave
> example, as you need to get the spacing right to see a nice longitudinal
> wave propagate before the energy is too dissipated.
>
> =A0 =A0 =A0 =A0http://wiki.sugarlabs.org/go/File:Physics_longitudinal_wav=
es.png

Really nice, would like to see it moving. Maybe I haven't been paying
enough attention to the mailing list but how can people share their
creations? Is there a way we can put the data files on the wiki so
they can be easily downloaded and opened with the activity?

Greetings,
Asaf


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