X-Message-Number: 32 From att!arpa!Xerox.COM!merkle.pa Tue Oct 25 01:40:52 1988 Received: by att.ATT.COM (smail2.6 att-mt) id AA03370; 25 Oct 88 01:40:52 EDT (Tue) Received: from Cabernet.ms by ArpaGateway.ms ; 24 OCT 88 13:53:10 PDT Date: Mon, 24 Oct 88 13:53:30 PDT From: Subject: Interesting article in Science Cc: Message-ID: <> Status: R 'Scanning tunneling Microscopy and Atomic Force Microscopy: Application to Biology and Technology', by P. K. Hansma, V. B. Elings, O. Marti, and C. E. Bracker. Science, Vol. 242 No. 4876 October 1988 page 209. Most interesting quote: 'In a remarkable paper written more than 25 years ago, Feynman pointed out that if we can arrange atoms and molecules the way we want "we will get an enormously greater range of properties that substances can have, and of different things that we can do" (25). The STM has brought this dream much closer to reality. For example, Becker, Golovchenko, and Swartzentruber (26) have placed what appears to be a single atom onto a germanium surface. More recently, Foster, Frommer, and Arnett (27) have pinned an organic molecule in a particular location on a graphite surface. Even before atomic and molecular engineering applications become practical, the STM may be used for micrometer-scale jobs like the repair of (very expensive) masks for integrated circuit production (28).' (25) R. P. Feynman, in Miniaturization, H. D. Gilbert, Ed. (Reihhold, New York, 1961), pp. 282-296. (26) R. S. Becker, J. A. Golovchenko, B. S. Swartzentruber, Phys. Rev. Lett. 55, 987 (1985). (27) J. Foster, J. E. Frommer, P. C. Arnett, Nature 331, 324 (1988). (28) R. Wickramasinghe, personal communication. Rate This Message: http://www.cryonet.org/cgi-bin/rate.cgi?msg=32