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The Palm-sized Chemistry Lab that Costs Less than Your Morning Frappucino

Stanford bioengineer Manu Prakash has created a $5 hand-cranked chemistry lab from music box parts that, instead of pricking metal tines to sound different tones, yields precise amounts of designated liquid chemicals. The small device is an inexpensive, easily manufactured, programmable and energy self-sufficient tool applicable to a wide variety of scientific and educational industries.