The Sensuous Gadgeteer: How to Use Tools and How Tools Work

The Sensuous Gadgeteer, published in 1973, was unique then and now because it taught not only how to use tools but also how tools work and why they work.

023-038-01-Stone-sharping
TOP: The correct angle and direction  to move a knife over a sharpening stone. BOTTOM: Sweep the knife over the stone so that each part of the cutting edge contacts the surface.
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