... The chapter is called "Pyramid Healing" actually. It starts by reiterating the usual about how they managed to build them in the first place - though I think that now we have worked that out and how long it took - Wiki 'Pyramidology' and try the links. But there are many unanswered questions about the Great Pyramid (GP). It is so exactly aligned to True North that it defies modern measuring systems; for years scientists thought it was slightly out, but in fact more accurate equipment has now vindicated it that it is in fact spot on. It is also in the exact centre of the world's land mass, on the longest EW and NS lines. It weighs exactly one thousand trillionth the weight of the earth; - when this is used to calculate the distance from the sun it comes out as 93 million miles, while modern space probes give 92,900,000 miles.
The "magic" proportions are that if the height of a pyramid is used as the radius of a circle, the square formed by the pyramid's base has the same circumference as this circle. The article implies that the 4 triangles between the corners and central axis are 3 - 4 - 5 triangles - the Egyptians seem to have discovered this before the Greeks in fact (it doesn't explicitly state this though, I'm assuming it). In the 1930s a Frenchman found that small animals which had starved to death in the GP had not decomposed but dried out and mummified, he was able to reproduce this at home by building one himself. It can preserve fruit and veg for longer, and experiments on people meditating inside a pyramid show that the theta (?) brain waves increase significantly, when the pyramid is aligned to true north. The cardboard razor sharpener was patented in Czechoslovakia, where strict controls mean it had to be tested thoroughly first. Years later metallurgists worked out how - it removes water pockets from the blade, which prevents it from getting worn.
So come on boys and girls, get building those pyramids, you'll live longer and be more healthy! ;-)