What is wrong with quoting
Columbus’ strange views on
the shape of the earth on the
opening page of a chapter
entitled, “The World is a Pear”?
Those lines are from
Columbus’ “Letter on his Third
Voyage.” Even Davis isn’t using
that as a description of the size and
shape of the earth, just a cute vision
from the often mistaken Columbus.
On page 62 Davis writes:
“You may have laughed when
you read the words that open this
chapter about his idea that the
world was shaped like a pear.
Well the Joke’s on you.
One of the things we learned when
the Vanguard satellite, launched in
March 1958, went into orbit was
that the Earth is not a sphere as we
learned in grade school – a “fact”
we have accepted since the days of
Newton. In fact, astronomer John
O’Keef determined from Vanguard’s
orbit that the Earth I slightly pershaped
with a bulge in the southern
hemisphere – though not to the
extent Columbus imagined.”
Not geodesy to be sure but
certainly not “astonishing.”
Peter H Dana
Ph.D.
Research Fellow and Lecturer
Department of Geography
The University of Texas at Austin
pdana@mail.utexas.edu
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