h a l f b a k e r yPoint of hors d'oevre
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Can we spin nanotubes on a loom now while we're at
it? |
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The first thought I had when I read about it was "how
long before this hits the 'bakery?" |
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//The first thought I had when I read about it was |
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...how they are going to explain to significant other all that black gunk in the blender. |
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Dishwashing soap is not tasty. Less sure about graphene. Can't one use butter? |
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//Potentially Earthshattering |
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Can we have a moratorium on earth-shattering until we have another planet to be standing on? |
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While we're all here, there's something I don't
understand. |
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Graphene is just a single layer of graphite. So why
is graphene supposed to be stronger than
graphite? |
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Yes, I know, in graphite the sheets of graphene
can slip over eachother and slide apart; but the
graphene sheets in graphite are no smaller than
the single graphene sheets that are prepared. So,
graphite should be as strong as graphene, as long
as the test sample is smaller than a typical sheet
of graphene. |
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(Analogy: if a graphene sheet is like a playing
card, then graphite is similar to a pile of playing
cards dumped on the floor - all lying flat, but
randomly overlapping. The pile itself has no in-
plane strength because the cards slide over
eachother; but if I measured the in-plane strength
of the pile over distances less than the size of a
playing card, it would have to be at least as strong
as a single playing card.) |
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Or does separating the layers from graphite into
graphene change the bonding of the carbon atoms
in the plane? |
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