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In all cases, there is no commercial scale output from them, be it hydrogen or fuel from algae.
FORBES: Biofuel From Algae: Different Prognoses
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The nebulous field of nanotechnology, freighted with as much hype as legitimate promise, boils down to the process of manipulating matter on a molecular scale (a nanometer is one-billionth of a meter, about the width of ten hydrogen atoms).
FORBES: The Science of Small
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The nebulous field of nanotechnology, freighted with as much hype as legitimate promise, boils down to the process of manipulating matter on a molecular scale (a nanometer is one billionth of a meter, about ten times the width of a hydrogen atom).
FORBES: The science of small