Drexierian nanotechnology drew renewed publicity last year when a morose Bill Joy,the chief scientist of Sun Microsystems,wonrried in the magazine Wired about the implications of nanorobots that could multiply uncontrollably.

• 当去年比尔·乔伊，一位重要的研究太阳微观结构的科学家在“Wired”这本杂志中提出自己对可以无限成倍增加的纳米机器人的担忧时，德莱克斯勒的纳米技术又引起了公众的注意。