[An experimental verification of the opponent theory of color vision of man].

An experimental study of colors observed by a human eye after a short flash of light of different spectral composition was carried out. Sequential images and changes in their color with time support the opponent theory of colored vision of man.

[Diurnal variations in the alpha-particles flux as a possible evidence for changes in the movement velocity vector of an experimental set-up relative to a relic system].

The variations in the fine structure of distributions of the results of alpha-radioactivity measurements are explained by changes in the velocity of Earth's movement relative to some selected frame of reference.

[Non-radiation control of dosimetric devices].

Three varieties of complete control over dosimetric devices are reviewed. In these devices, use is made of combined detectors consisting of scintillators and semi-conductors. The control is effected by means of scintillator illumination from a stabilized light source via an edge-lighted panel.