「in 100 million years, a lot can happen, 」 landman said.
「在一亿年的时间内,什么事都有可能发生,」兰德曼说。
「there was a time,」 landman muses, "when an ambulance appeared before parliament and the rand collapsed because people thought something had happened to mr. mandela.
only relatively pristine material has the goods landman is after, so his team uses a scanning electron microscope (below), which utilizes a beam of electrons to image surfaces, to find the best nacre.