Natalia Osipova hopes to 'broaden appeal' of ballet by selling unique digital copies of performances She is one of the world's most acclaimed dancers, dazzling audiences with performances at the Bolshoi and the Royal Ballet. Now Natalia Osipova is fusing her centuries-old art form with the latest digital technology. Osipova, principal dancer at London's Royal Ballet and has recently appeared as Giselle at the Royal O…