[Squeakland] the concept of mass

[subbukk]

On Tuesday 08 May 2007 9:11 pm, Paulo Drummond wrote:
> Hi all,
>
> Following "Powerful Ideas..." - the great book by Kim & BJ, I'm
> trying to introduce the concept of mass (or weight, for simplicity of
> kid's undestanding), to enhance a project about pendula and energy.
>
> Any ideas?
Excellent idea. This would allow kids to simulate planets, satellites, 
collisions and so on.

Sodaconstructor  (http://www.sodaplay.com) uses just three objects  - mass 
(fixed or free), a spring (a stretchable line connecting two masses) and a 
muscle (line connecting masses that stretches and shrinks periodically) - and 
then four controls - gravity, friction, elasticity and an activation wave for 
a muscle - to create very interesting "creatures". Be warned, this is very 
addictive :-).

Regards .. Subbu