A hypothetical multi-gear nanomachine

As we know, the typical time scale of molecular motion is from femtoseconds to picoseconds. In order to measure molecular motion, we could build a machine composed of meshed molecular gears of sequentially reduced sizes (like a STM tip). Thus, a single fast event at the smallest scale may become directly observable at the largest scale. On the other hand, we could operate at the largest scale to produce fast motion through this mechanism, which theoretically provides a way to directly manipulate single molecules.

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