Cog wheels are fascinating - they allow the transmuting of speed from fast to slow.
The principles of gears and chronometers are also covered.
The principles of gears and chronometers are also covered.
Age Recommendation: Experimental kit 12 years
Product Dimensions: 4 x 15.5 x 30.5 cm
Product Dimensions: 4 x 15.5 x 30.5 cm