Sharpening knives by bike

Hi,

I found this video gem in the CTC e-newsletter today: "Peter Kahugu of Banana Hill(!) just outside Nairobi makes a living using his bicycle. He has modified his bicycle with a drive belt and a grinding stone to make it a knife-sharpening machine. By kicking the bike up onto its stand and simply pedalling he is able to offer a fully mobile service. Visit afrigadget.com to watch a short film of this simple and beautifully-conceived machine in action.

Best to all,

Bill on bike