Schwazer, 27, had been due to compete Saturday in the men's 50-kilometer race walk.

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Mr. Schwazer won a gold medal at the 2008 Beijing Olympics, setting an Olympic record in the 50-kilometer race walk.

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Dilworth, Troody's creator, hopes the pigeon-sized robot will be mother to a whole race of dinosaur-like robots that will walk around museums, entertaining and educating children.

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And one of the great things about watching our Olympics is we are a portrait of what this country is all about -- people from every walk of life, every background, every race, every faith.

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