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[@english books new] IELTS Reading Academic Actual Tests (1)

286 | 
P a g e
 
the test site into a working Egyptian model. The first successful test occurred on April 14, 
2001. In wind speed of approximately 15 mph, the obelisk was raised in approximately 
one hour. On June 23, 2001, the team raised the 3 m-tall obelisk into vertical position in 
22 mph winds in under 25 seconds. At the end, the obelisk was seen to be swinging from 
the top of its lifting frame, like a giant pendulum. It seemed to be that easy...The team 
now knew that the best operating conditions were steady winds, between 20-25 mph. In 
January 2004, working in optimal wind conditions, the obelisk raised itself to ten feet after 
27 minutes. An angle of 80 to 85 degrees was reached after 57 minutes. The test proved 
a success as it showed that a single kite was able to provide sufficient lift to raise an 
obelisk. Though the team focused on the erection of obelisks, the "pyramid building" 
scheme was not neglected. In 2003, the team showed how two ton stones easily moved 
on rollers, propelled by the powers of the wind via a kite. The system also allowed stones 
to be lifted up a ramp.
E.
With initial success of showing that wind power can be harnessed and used in the 
building industry, Egyptologists have nevertheless pointed out that Clemmons has only 
shown a possible technique 
— but that this does not mean that the ancient Egyptians 
followed this technique. This in itself is true, but what Egyptologists fail to add is that their 
preferred explanations equally fall short of that criterion. What makes Clemmons' 
approach specifically of interest over the cherished explanations 
— is the speed in which 
these complex tasks are performed. Mass labour and massive ramps could indeed 
— 
possibly 
— build the Great Pyramid. But if this pyramid was built in approximately twenty 
years, as Egyptologists argue, then it means that one stone was lifted into place 
approximately every two seconds (under normal working conditions). In the ramp theory, 
this seems hardly plausible. However, in the wind power theory, we see how fast this 
process can be. Furthermore, the "wind method" requires far less ancillary work to be 
carried out than the "ramp method'. In the "sandpit method; weeks would be spent 
constructing the sand hill and lowering the obelisk in place. In the "wind method' , a 
mobile if not reusable lifting frame might require a few hours or days to be put into place, 
with the obelisk lifted in a matter of hours.


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