In 2006 the team reported they had developed so-called metamaterials that could deflect microwaves around a three-dimensional object essentially making it invisible to the waves.

• 早在2006年，这个研究小组就宣称他们研发出了一种所谓的“超材料”，能使三维物体周围的微波偏移，探测不到该物体的存在。