In reply to johnj:
> (In reply to ripper)
>
> Ok this is my last post cos i have a job to do and this would just take up to much time.
>
> so if i type into the great library called the internet with
>
> what's at the center of the landmass of earth
>
> i get pages of stuff about the pyramids
>
> bearing in mind i started reading about this stuff in 2006 as it fascinates me
>
> so when reading on the blocks in the kings chamber are around 70 tonne and machined to modern engineered tolerances and been a design engineer i'd really like to know how they did this, the current theory states with ropes and pulleys, excuse me while i cough BULLSHIT....
>
> Have a nice day ya'll ;+)
Ok, i'll take this one.
People go on about pyramids, the accuracy, the difficulty etc.
Let's take accuracy.
First, setting out.
A modern construction job is set out using very modern equipment usually to an accuracy or around +- 10mm for the steel frame.
Much higher accuracy can be achieved, but it would be pointless because steel from a rolling mill also has inaccuracies. So we use the cladding (in whatever material) to lessen these discrepancies.
This is a purely commercial decision.
To make steel totally accurate and set out to better tolerances would take a lot more time and money than simply building in some tolerance in the cladding.
A pyramid can be set out with nothing more than a few sticks and some string. To a VERY high accuracy. Given time.
To orient the pyramid, over the course of a year you wait for whatever it is you want to align it with to come up over the horizon, or, if it's the sun at midday, for it to reach zenith, and you plant a stick. Do that for a year and you've got a record of your object.
To set out the pyramid you need a 345 triangle. The egyptians knew about these.
A bit of string will suffice.
You set out one side using three sticks. When they are perfectly aligned, you have a straight line.
do this a few times if you like. Then if there are any errors, take the average (much like a cocked hat in navigation)
Now set out a right angle. Do the same error checks.
Set out the rest of the square.
check the diagonals.
Put up some offsets.
Now you need a load of blocks.
At the quarry, cut your block to a chosen accuracy. Bring it to site (and there have been quite literally hundreds of experiments to show that you can very easily move 10 ton blocks with a 20 man team)
On site, get it roughly into place. Use another stick and run it along the block already in place and draw a line on say, a plank of wood which corresponds to the surface of the existing block.
Transfer this line to your new block and cut to shape.
Bear in mind that whilst SOME blocks are very heavy, you'll note MOSt of the pyramid is actually made of very manageble sized blocks for speed of work.
As your pyramid grows, build an effing great big ramp.
We still do quite amazing things like this in construction now.
I built a 3000 ton cantelevered steel roof structure which was entirely built outward from a hub some 150 feet in the air. As each piece of steel was placed, it already had access gantries bolted to it. Once in place, a man goes up, removes the guard rail on the first piece of steel and he now has access to the new piece. At the end of the job, it's all dismantled and taken away.
There is no aspect of building a pyramid which presents ANY real problem to me.
Give me enough money and I will build you one.
though........... why would you want to? They're shite.
They take millions of tons of rock, millions of man hours and a project time measured in decades to produce a structure so badly designed, it can only hold a few rooms, and some of them collapsed under their own weight.
Others had to be re designed mid build in order to stop them collapsing.
The pyramids are a great social engineering accomplishment. They are not really great engineering achievements.
All of the questions you raised over the building of pyramids has been answered by experimentation, not just by me here.