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Yahoo report : World naked bike ride Cyclists from several parts of the world stripped off their clothes to gain attention. The 'naked' ride aims to "promote a body-positive culture and encourage cycling as a greener mode of transportation." Naked cyclists take part in the World Naked Bike Ride in Mexico City June 9, 2012. The ride aimed to promote a body-positive culture and encourage cycling as a greener mode of transportation. REUTERS/Edgard Garrido (MEXICO - Tags: SOCIETY ENVIRONMENT SPORT CYCLING TRANSPORT) Naked cyclists gather in Hyde Park before setting off on the World Naked Bike Ride in London June 9, 2012. The aim of the event is to protest against oil dependency and the car culture. REUTERS/Paul Hackett (BRITAIN - Tags: SOCIETY CIVIL UNREST SPORT CYCLING ENERGY) can't post all photos here and those who want to view more login to this link : http://sg.news.yahoo.com/photos/world-nake...-210316979.html Hats off to those Ang Moh, they really can amuse peoples with all kind of campaign and their pasticipant rates super....

I am just thinking that we have been using combustion engine (be it rotary or piston) for such a long time. All that way done is to make more power, use less petrol and maybe last longer. However, no matter how much you improve the engine, its still a very inefficient and rather old-fashioned piece of machinery. I am wonder if we could just ditch this combustion engine altogether and go for something better. We have hybrid cars etc but I feel progress has been very slow. Perhaps we need some breakthrough in technology to really come up with a good powerplant to replace the combustion engine.