ROADS ARE THE BIG ENCHILADA:

On April 7, 2013, Kenya's Peter Some won the 37th Paris Marathon with a time of 2:05:38. A surprise winner, Some missed the event record by only 27 seconds, thus depriving him of a place in running history. He need not have worried; unknown to him and thousands of fellow marathoners, they were all nonetheless part of a historic event. As they ran across the Avenue des Champs Élysées and thumped their feet on 176 special tiles laid on a 25-meter stretch, the athletes generated electricity.

These special "energy harvesting tiles" were developed by London-based Pavegen Systems. The power thus generated can be used to run low-voltage equipment such as streetlights and vending machines. The concept is the brainchild of Laurence Kemball-Cook, who founded Pavegen in 2009 to commercialize it. "The Paris Marathon is the first of many such projects that will enable us to realize our goal of taking this technology to retail sites, transport hubs, office blocks and infrastructure spaces," he says.

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