home *** CD-ROM | disk | FTP | other *** search
- Comments: Gated by NETNEWS@AUVM.AMERICAN.EDU
- Path: sparky!uunet!europa.asd.contel.com!paladin.american.edu!auvm!ERS.BITNET!MAINT2
- Message-ID: <HISTORY%92091411564325@RUTVM1.BITNET>
- Newsgroups: bit.listserv.history
- Date: Mon, 14 Sep 1992 11:42:21 EDT
- Sender: History <HISTORY@RUTVM1.BITNET>
- From: Ken Koester <MAINT2@ERS.BITNET>
- Subject: Re: The food supply of Tenochtitlan.
- In-Reply-To: Message of Fri, 11 Sep 1992 13:09:00 EDT from <JOSE@CLEMSON>
- Lines: 21
-
- On Fri, 11 Sep 1992 13:09:00 EDT <JOSE@CLEMSON> said:
- >. . . As to cost, considering
- >the investments made in other types of mass construction projects
- >among the high precolumbian civilizations, I wonder if that would
- >stop them if they really wanted to use wheeled vehicles over some
- >type of road or prepared surface. In some places they built
- >lengthy causeways even without such vehicles. But, and here I return
- >to my first sentence, why did they not use humans to pull wheeled carts
- >or something comparable? Lots of societies have in the past and
- >still do.
- >
- >Joe Arbena
- >Clemson U.
-
- By "cost" I meant more generally the effort required to move cargo vs. the
- return you gain from it. It takes enormous effort to move cargo overland,
- compared to over water--this is true today, by the way. If it costs more
- grain to feed your beasties--be they 2 or 4 legged--than they can carry,
- why bother? That's operational cost. Building a road, on the other hand,
- is a one-time cost (yes, there's maintenance, but that isn't intitial
- building).
-