One of the fun things you can do in Etoys to gain the attention of the boys is to provide materials video or music. To this effect Etoys incorporates some permitirann tools we achieve our goal. In reviewing the activities incorporated in the proposed curriculum Squeak / Etoys for olpc can find great Kedama particle simulator. At first it is easy to understand, but once you take the idea opens up a world wide in the field of simulations. Analyzing and modeling programmable behaviors with small particles is an exercise that requires advanced skills, but internalized in the operation of this simulator can be a great start in life for young scientists.
At first glance it may go unnoticed Particlesdyeinwater.pr implicit in the concept. included in the project gallery. To demonstrate the power of particle simulations is the first thing on the player videos mpeg and jpeg are here:
and play the video can be turned into a container filled with water a little green ink see how this is mixed homogeneously. After the video is played at a faster rate to appreciate better the effect. There is no application of any movement on the water, only stream of ink. The activity then proposes a question: what is happening? And to find the answer using the particle system. Since the simulator is programmed (with the same set of properties Etoys blocks, the same truck, etc) with 2000 particles White (water) and 500 green (ink). By putting to work the simulator, we can see how the ink particles are colliding with water, producing a homogeneous solution. Finally, a balance is achieved when the ink particles collide stop. Pato Acevedo
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