it is very cool, but i am afraid it is only artwork.
the cost *in energy* to make a glass marble that size, especially one that is optically efficient, is ridiculous. i watched some guys make one half that size that was not "optic quality" and they really struggled.
mechanizing it would not cut the energy costs associated with it.
when you figure that once made, it should last over 100 years, it can eventually become energy efficient, but nobody in the USA looks at that sort fo business model right now.
we have a more serious problem right now. we need something like this system to decentralise energy production for security reasons.
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