(Miquel Ramis)
El enigma de las pirámides:
como subir miles de cubos de piedra caliza que
pesan más de 2 toneladas de una manera
sencilla y rápida. Aquí vemos una
idea propuesta por el equipo de Nova televisión.
Primeramente se preparan 4 cimbras semicirculares
conmaderas robustas. |
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El segundo paso es rodear el cubo de piedra con
las 4 cimbras semicircuales formando un rodillo,
es decir, pasando de la forma cuadrada a la redonda. |
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Ahora ya solo queda enrolla dos cuerdas, una
a cada rueda, y tensar hacia arriba: como si se
tratara de un ovillo, las cuerdas van desenrollandose
y por tanto la piedra sube sin rozamiento, aligerando
por tanto gran parte de su peso.
Impresionante propuesta, pero todavía
no resuelve el hecho de que los objetos hallados
por Petrie no son cuartos de circunferencia, sino
catenarias. Wally Wallington si
tiene una explicación que explica la
utilización de catenarias. |
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Model and Full Scale Tests
Model tests performed by the writer, see Figure 3,
have shown that a small concrete block, 107 mm square
by 2 1 0 mm long and weighing 50 N (5.1 kgf) fitted
with cradle runners could be pulled up a 1 in 4 slope
by two thin strands of cotton. The same block on a wooden
sled could not be pulled along a smooth wooden level
surface by two strands of the same cotton. The efficacy
of the technique has also been shown by full scale tests
with concrete blocks 0.8 m square by 1.6 m long and
weighing 2.5 tonnes. These tests were carried out by
the Obayashi Corporation at a site near Tokyo, rolling
a block along a level road surface and up ramps with
slopes of 1 in 1 0 and 1 in 4. It was found that two
or three men could easily roll a block fitted with cradle
runners along a level compacted stone surface by pushing
from behind, while sixteen men could haul the block
up a 1 in 4 ramp by pulling on ropes coiled around the
cradle dowels, taking about one minute to negotiate
the 15 m length of ramp. Figure 4 shows the latter operation,
in this case employing 18 men. The model tests and full-scale
tests confirm that rolling the stones in this way could
have been the method used, both to transport the stones
from the quarries to the pyramid building sites, and
for raising them up ramps with slopes as steep as 1
in 4 to their final positions. Certainly no other method
would have been as economical in the use of manpower.
( http://www.atse.org.au/index.php?sectionid=376)
Ver transporte de grandes piedras
segun Vitrubio.
Ver herramientas egipcias
Vista de las Piramides desde
El Cairo
Bloques de la gran Piramide
Ver Egipto I: Cantería egipcia
Ver Piramides II
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