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Metal against metal.


The causes and characteristics of friction at the atomic Indivisible. An atomic operation, or atomicity, implies an operation that must be performed entirely or not at all. For example, if machine failure prevents a transaction to be processed to completion, the system will be rolled back to the start of the transaction.  and molecular levels have been the subject of a wide range of studies, including computer simulations (SN: 5/30/92, p.360) and experiments involving atomic force microscopes atomic force microscope (AFM), device that uses a spring-mounted probe to image individual atoms on the surface of a material. Unlike the scanning tunneling microscope, which is also a scanning probe microscope, the AFM can be used on materials that do not conduct  and other surface- sensing instruments (SN: 12/19&26/92, p.429). Now, researchers have created a computer model showing the behavior of atoms when two metal surfaces slide past each other.
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Title Annotation:metal surface-to-surface friction
Author:Peterson, Ivars
Publication:Science News
Article Type:Brief Article
Date:Apr 15, 1995
Words:69
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