Use a toad to catch a quake

• Autores: Andrew Robinson
• Localización: New scientist, ISSN 0262-4079, Nº. 3102, 2016, págs. 42-43
• Idioma: inglés
• Texto completo no disponible (Saber más ...)
• Resumen

  • An ornate dragon's head suddenly spat a metal ball into the mouth of a bronze toad crouching patiently beneath it, and officials at the court of the Han emperor were astonished. And sceptical too: this supposedly revealed that an earthquake was happening elsewhere in China,yet they felt no tremors in the capital Luoyang. The world's first seismoscope was created in AD 132 by polymath Zhang Heng, but did his legendary device really work. Here, Robinson finds the evidence to be shaky