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Physical changes in a nanoscale system can be accurately measured by restricting the reaction in a carbon 'nano test tube'. It can be difficult to observe physical changes in a nanostructure, because ...

The human eye, says Biology Professor George Wald of Harvard, is like a camera, with a slow film for bright light and a fast film for dim light. At a Cleveland meeting of the Society of Biological ...

This article was supported by readers like you. Our mission is to provide accurate, engaging news of science to the public. That mission has never been more important than it is today. As a nonprofit ...