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Simple, Portable Physics Simulations
ttsiod writes "I want to 'lure' my nephews/nieces towards Science and Engineering (to whatever extent that's possible, in the age of consoles). To that end, I have coded simple physics simulations, like falling snow, exploding fireworks, and 1D/2D wave simulations. My efforts are here, in the form of portable SDL mini-programs (GPL code, compilable under Windows, Linux, Free/Net/OpenBSD, Mac OS/X and basically every OS with GCC and SDL). Try them out, and do offer any suggestions on other programs that can trigger scientific interest in young minds. Myself, I am teaching them Python, so that they can code 'fireworks' on their own."
Simulations that are useful for learning must be grounded in reality. They must give the learner a chance to extrapolate principles from their own personal hands-on observations to the simulation.
Without original personal observation of physical phenonema, simulations are little more than 'das blinken lights' to the learner.
Don't get me wrong, the stuff offered by the OP is good. And if the kids in question already have an interest in the subject, its great.
But to spark an original interest takes hands-on, thought provoking experiments that the learner may manipulate in any way they wish (some of which you probably never thought of).
Example. Electromagnetism. My 8th grade grandson (yup I'm an old geezer who cut my teeth on vacuum toobs and RTL) learned a lot about the interplay between electric and magnetics fields just today. I suspended a magnet on a string, over an aluminum plate, and just left it there for him to find, and play around with. After he had done so, he asked why when the plate was present the pendulum swiftly assumed a stable position, whereas when the plate was absent the pendulum assumed a rather chaotic motion... even though the magnet was obviously not attracted to aluminum.
After explaining it to him and allowing him to further explore the physics with magnet wire and batteries, he came away with a firmer grasp on electromagnetism, a grasp I highly doubt he would have gotten from a canned simulation. Now that he has made a connection in his mind between the seen (magnetic damping of the pendulum motion) and the unseen (electrical currents in the aluminum plate, and the ensuing magnetic field), a simulation would allow him to further explore the subject without requiring expensive laboratory equipment.
So, Kudos for the work, but you have to get out there and actively, physically engage them with hands-on experiments. After, that is really what science is about!