The Megalith Movers Prehistoric Engineering
Blog 5th March 2016    On Monday we were down to a minimum team of two. Sean was back at sea and Joe was unavailable, leaving just Steve and myself. This may be the maximum workforce for some time as Joe will be leaving for England shortly. Nevertheless, we succeeded in moving the four ton block forward, until it was sitting firmly on top of the lower block and in roughly the right position centrally under the obelisk.    This operation took about an hour, and while Steve set about assembling the scaffold for the next operation which will be to resume erecting the obelisk, I set about making the lifting plates which will be a vital part of this method. As I think I mentioned in a previous blog, we are now working on a theory on how to erect an obelisk irrespective of the size and weight of the obelisk in question. The secret of how it may have been done lies in the shape of these lifting plates, and the fact that the heavier the obelisk, the longer the obelisk.  Some facts about The Unfinished Obelisk may help us understand what may be possible. This obelisk weights about one thousand tons, and would have stood a hundred-and-thirty-seven feet above the plinth. If the weight distribution is about the same as our ten-ton obelisk, then the balance point of the horizontal obelisk would be about seventy-five feet from the top. This means that lifting plates could be arranged on both the port and starboard sides, a total of a hundred-and-fifty feet. During this experiment with the ten-ton obelisk we will be using lifting plates one foot long, capable of accommodating three levers per plate. With a hundred-and-fifty plates and three levers per plate, that would give us a total lifting capacity of a hundred-and-fifty times three tons, or four-hundred-and-fifty tons. As we would be lifting just one end of the obelisk, we would only have to lift half the weight of the obelisk. In fact, as we would be able to fit lifting plates beyond the balance point without altering the balance too much, we could in theory lift five-hundred tons easily.      Tuesday I finished the lifting second plate, and as Steve had finished the scaffold, together we began to assemble the crib on top of the block. This took the rest of the session.    Wednesday we lifted the obelisk just enough to take the weight off the first crib, and while the levers and sandbags were supporting the obelisk, we dismantled and rebuilt the first crib, so that it was hard up against the nine-ton block. This would stabilise the first crib, as it now was tight against this block and unable to go anywhere.    Thursday we continued lifting, and removed the middle crib. This was necessary as we intend to move the top block forward and up to the obelisk, while the first crib is taking the weight.    Friday we concentrated on lifting from the top block, and completed four lifts of about one inch per lift. It was hard going, as we were lifting perhaps too far forward at this stage, and had to use all the available sandbags to achieve each lift. We had a choice, we could move the lifting plates nearer the tip of the obelisk, which would make each lift easier, but would entail a lot of rebuilding, or we could continue as we were. We chose the latter, because we could already sense the centre of gravity of the obelisk slowly changing for the better.    A few photos below will perhaps give you a better idea of what we are doing:   Looking from the tip of the obelisk Close-up of the lifting plates Side view    Next week we will continue, and if we can match the progress we made Friday, each day of the week we may start to dream about seeing the obelisk upright.    Regards to all.    Gordon << previous blog page next blog page >> To read & post comments click here return to top of this page

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