Re: [eXtenDE-dev] Re: [unrev-II] Tech Startup "How To" notes

From: Eric Armstrong (
Date: Tue Dec 12 2000 - 16:52:37 PST

  • Next message: Dennis E. Hamilton: "RE: [eXtenDE-dev] Re: [unrev-II] Tech Startup "How To" notes"

    Drat. So I had a tetrahedron at 4 elements.
    When I added "purpose", I had TWO tetrahedrons, sharing
    the marketing/finance/technology face.

    What's that? A double-tetrahedron?? A diamond tetrahedron?

    Thanks for the explanation, btw. The sooner the egg
    gets wiped off, the faster everyone forgets it was there...

    "Dennis E. Hamilton" wrote:
    > A tetrahedron is a solid figure having 4 faces, each being a triangle. It
    > has four vertices.
    > Notice that pyramids are not tetrahedrons, because the base is a square and
    > the remaining faces are triangles. To visualize a tetrahedron, think of a
    > pyramid-like object built on a triangular base. So there are only 3
    > vertical faces, coming together at a single apex.
    > A regular tetrahedron (with each edge the same length) is the simplest
    > regular solid. (We don't count the sphere, which can be thought of as an
    > infinitely-faced object in the limit.)
    > -- orcmid
    > -----Original Message-----
    > From:
    > []On Behalf Of Eric
    > Armstrong
    > Sent: Tuesday, December 12, 2000 14:41
    > To: Mark Szpakowski
    > Cc:; Jim Hurd;
    > Subject: [eXtenDE-dev] Re: [unrev-II] Tech Startup "How To" notes
    > Mark Szpakowski wrote:
    > >
    > > Shades of Buckminster Fuller's "conceptual tetrahedron"!
    > >
    > > However, how is a five pointed figure a tetrahedron, as in the
    > > structure with "purpose" at
    > >
    > >
    > Actually, I didn't have any references handy that I could
    > use to make sure I understood what a tetrahedron looks like.
    > I *think* what I drew is one, but there is a distinct
    > possibility I'm wrong.
    > What is a tetrahedron, if what I drew isn't one?
    > And what the heck did a draw, if it isn't a tetrahedron?
    > You're right that it is a 5-pointed figure.
    > I suppose I could call it the "diamond model".
    > But being a big fan of Bucky, I really like "tetrahedron".
    > _______________________________________________
    > eXtenDE-dev mailing list
    > _______________________________________________
    > eXtenDE-dev mailing list

    -------------------------- eGroups Sponsor -------------------------~-~>
    Make FREE long-distance calls with Tellme!
            Just dial 1-800-555-TELL.

    Community email addresses:
      Post message:
      List owner:

    Shortcut URL to this page:

    This archive was generated by hypermail 2b29 : Tue Dec 12 2000 - 17:03:15 PST