X-Message-Number: 14343 From: "John Clark" <> Subject: Nanotechnology Date: Sat, 19 Aug 2000 10:51:06 -0400 In July of 1999 a molecular switch was made for the first time, but the switch could only be thrown once. By November 1999 they had a switch that could be turned on and off many times but it had to be kept close to absolute zero and stopped working after a few hours. In today's issue of Science James Heath report on a molecular switch that works at room temperature and shown no signs of wearing out. Even better, you can throw the switch with electricity or with light. Even better, not only do the electrical characteristics change when the switch is thrown so does its color, from green to maroon. Heath says he thinks can do better. John K Clark Rate This Message: http://www.cryonet.org/cgi-bin/rate.cgi?msg=14343