Science and technology

Associated Press
In this, June 2, 2012 photograph, workers polish helmets being prepared for a Hollywood period movie at a workshop owned by Indian businessman Ashok Rai, unseen, in Sahibabad, India. From Hollywood war movies to Japanese Samurai films to battle re-enactments across Europe, Ashok Rai is one of the world's go-to men for historic weapons and battle attire. (AP Photo/Saurabh Das)

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