Pick something with simple parts you can get at Ima Market or the hardware stalls near Paona Bazaar. My 'Magnetic Braking System' used old cycle rims, magnets from a speaker repair shop, and some plywood. Everyone was doing fancy optics, but the teachers were *phajaba* of those—they liked seeing our hands dirty with something that actually moved. Just make it spin and show the numbers changing, tampha?
#exams#study
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