Hidden scrolls, tantric puzzles and SpongeBob SquarePants – a startling new angle on ancient Asian art

The Rijksmuseum has used techniques including neutron tomography to shed fresh light on 75 treasures dating back millenniaA small Buddhist object sits quietly, its three-headed masculine figure locked in tantric union with a feminine one. But the nitty gritty of their enlightened sexual activity isn’t the only thing that this 15th-century Tibetan bronze is hiding.The 32cm-high object is full of tiny scrolls and sacred objects – revealed only when the Rijksmuseum in Amsterdam used hi-