Say, you wanted to make a steel engine within a machine operating volume 3
feet wide on a side. This would require 33 = 27 of the current machines (or
a single one scaled up this size.) Say, the engine weighed 270 kilos,
that's 270,000 grams. Say the weight is equally distributed among the 27
machines,


The second sentence here should say:

"This would require 3^3 = 27 of the current machines (or a single one scaled
up this size.)"

Bob Clark

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Finally, nanotechnology can now fulfill its potential to revolutionize
21st-century technology, from the space elevator, to private, orbital
launchers, to 'flying cars'.
This crowdfunding campaign is to prove it:

Nanotech: from air to space.
https://www.indiegogo.com/projects/n...ce/x/13319568/
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