The Megalith Movers Prehistoric Engineering
Blog 6th June 2015    It has been a week of steady, solid, if unspectacular progress. We have succeeded in completing five separate lifts of about three inches each time, as well as constructing a new support ring under the tower each time.    Again we have been working short-handed, on two days only Steve and myself were available, but now with the optimum position of the fulcrum firmly established, we are getting maximum lift for minimum effort each time. Loading the bags of sand onto the ends of the levers needed no more effort than loading bags of shopping into the boot of a car at the local supermarket.    Joe is making use of his organizational skills, and has a local seamstress making up a set of canvas bags to replace the plastic shopping bags we are presently using, which should make things even easier.    I have heard it said that you can't put a square peg in a round hole, but that is exactly how we are holding the rings of the support tower together, as you will see in the pic below:     The first two rings of the support tower had been fastened to the top of the Obelisk with windlasses, and a third ring was added underneath the first two. While the weight of the Obelisk was pressing down on this third ring, four holes were drilled at an angle through the second and third rings, square pegs were hammered into these round holes, so joining the two rings together. As the holes were drilled at an angle, the pegs on each side form a dovetail shape, further strengthening the joint. Each subsequent ring was fastened to the one above in the same way, until we now have six rings almost completed in this pic. In this next pic you can see the situation towards the end of the week.  In this pic you can see that, at Joe's suggestion, we are taking a belt and braces approach and using further windlasses as an extra precaution to hold everything together.   Here you can see the support tower growing from the working platform and two fail-safe towers. Next week it may be easier to see the curve in the support tower, as it grows taller. The fail-safe towers are not needed to grow the support tower, but are just being used as a precaution, as this method has never been attempted before. <<previous blog page next blog page >> To read & post comments click here return to top of this page

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