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" ... Nanomaterials such as carbon nanotubes and graphene, are not only interesting from a scientific or... [+] industrial perspective, they can sometimes also form beautiful structures, which under electron microscopes reveal glimpses of a fascinating nanoworld. The structures on display are each about one thousandth of a millimeter large, and consist of thousands of nanoparticles. Electrons are the preferred way to image these nanometer-to-micron scale structures. ... "
" ... Pushing to the limits of tiny and wirelessly connected though will still require power, and unlike RFID, will require active local on-board power. There are numerous ways for embedded chips to harvest power from the surrounding environment: vibration, noise, light, heat; even ambient RF fields create a ubiquitous sea of energy in our environment. But the reality of physics in the nanoworld means that chip-scale power harvesters produce energy measured in nanowatts. Just how tiny these scales are is hard to fathom: a single flea hop generates 100-fold the energy of a nano-energy harvester each second. And it takes a 100-flea-hops of energy to transmit just a few hundred information bits per second, never mind kilobits or megabits. But as incredible as these metrics sound, they are now being sequentially conquered in the engineering of the nano world. ... "