Small natural and synthetic devices

Researchers at Berkeley working to unlock the potential of nanoscience:

High Definition Nanotechnology video from KQED

Amazing how nature produces its own nanodevices, such as motors like the flagella that allow spermatozoa to swim. Imagine how many structures can be found by exploring the universe of possible simple nanostructures! We also know that given a few elements, computing devices are capable of universal computation (see my previous post on the smallest universal Turing machine). So one could potentially provide  nanomachines with coded instructions to  perform just about any task–of course within the constraints of their mechanical capabilities.Further references available online from molecular to nano-computing:

Tseng and Ellenbogen, Toward Nanocomputers, Science 9 November 2001.
The world’s smallest computer made entirely of biological molecules, News Medica, 2004.
Beckett and Jennings, Towards Nanocomputer Architecture
DNA Computer Works in Human Cells, Scientific American 2007.

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