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A gyroscope (approx. diameter: 1ft, weight 8lb, variable spinning speed) powered by small electric motor. The gyroscope would be mounted within a plastic shell with aerodynamic exterior, comfortable backing and shoulder straps (would resemble a back pack).
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<raises hand> I wanna be the tester for this. |
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Based on the effect I've experienced just with a spinning bicycle wheel, I'm gonna guess that 8lbs might be excessive. |
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Would certainly help with your posture. |
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