As we have just seen, invisible inerton waves of the Earth always accompany any physical process that occurs on the Earth surface or inside of it. Because of that the Earth inerton field may be treated as an alternative to the aether wind which, speaking the language of physicists of the nineteenth and early twentieth centuries, the Earth might experience in its motion through the world aether.

Apparently, just inerton waves increase inside Egyptian pyramids and their models since the pyramids are typical resonators of inerton waves, which are excited in the Earth. In fact, faces of the pyramids are oriented with a high degree of accuracy to the cardinal points of the compass. Besides, the ratio between the side of the square apyr and the height hpyr of a pyramid is very close to the value pi / 2. The equality is held for the Great Pyramid, apyr / hpyr = pi / 2, and this means that its shape corresponds to an optimal resonator. At all events, the profile of the Great Pyramid (along the East-West line) unambiguously points that it was built as a resonator of the best quality-factor. Moreover, the word pyramid itself indicates to its inner properties – the "inside fire" of the construction.

Figure 5 shows profiles (along the East-West line) of three possible shapes of pyramids: a sharp pyramid, the Great Pyramid and an obtuse pyramid. The first one that is shown in the Figure depicts those Russian ones which were described in the second section; the pyramid is characterized by the ratio a / h = 0.5. Since the value 0.5 is approximately three times less than the number pi / 2, we may suggest that parameters of such sharp pyramid are not able to keep the inerton waves inside the construction. The sharp pyramid plays rather the role of a radiator  (but a sharp pyramid may function also as an antenna absorbing inerton radiation from outer space). We mentioned above that researchers from the company "Gidrometbribor" indeed fixed presumptively ionic formations over the sharp pyramid. To the contrary, an obtuse pyramid may rather function as a radiator that emits amplified inerton waves into the Earth surface. The Great Pyramid of Giza and the smaller pyramids should work the same as the resonator described in this article as the happy medium, i.e.  do not intensively radiate up or down.

Figure 5