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The experimental registration of RBC flow "in vitro" on the base of cross-correlation method is carried out. The range of erythrocytes concentrations in the whole blood solution flow, when the application of physical method used is possible, was revealed.The principle possibility to use the cross-correlation method to register RBC complexes, to estimate their sizes and motion velocity in the flow was shown experimentally. It is easy to see, that the registration of RBC complexes may be treated as the base of cross-correlation method application for the aims of aggregometers, medical diagnostic apparatus development, for example, the device to define the blood group type of probe automatically.

Some results are presented of the Earths microseismic background. It is assumed that background peaks should correspond to the resonance gravity-wave exchange in the system of two gravity-connected bodies. The microseismic spectrum is compared with the distribution of gravity potential of the nearest stars. A close peak-to-peak correspondence is found. This correspondence and resonance condition lead to an evaluation of the gravity-wave velocity. The resulting value is nine orders of magnitude more than the velocity of light. Some consequences of such result are discussed.