Nano fuel Rechargeable batteries are well-suited to portable-power applications where the energy requirement between recharges is relatively small. In recent years, for example, lithium-ion batteries have proved their worth in mobile communications (cellular phones) and in laptop computers. With the advent of mobile broadband computing, however, the next generation of portable electronic equipment will demand ever-greater amounts of stored energy, most probably at levels that are well beyond the capabilities of batteries. For this reason, …showed first 75 words of 2615 total…

…showed last 75 words of 2615 total…small robotic manipulators. If we are to make anything of any significant size with this approach, we'll need mole quantities of these manipulators. Fortunately, any truly general purpose manufacturing device should be able to manufacture another general purpose manufacturing device, which lets us build large numbers of such devices at low cost. This general approach, used by trees for a very long time, should let us develop a low cost general purpose molecular manufacturing technology.