Unithiol test as a detector of impulse cosmophysical radiation

Dynamics of the oxidation rate of unithiol (sodium dimercaptopropansulfonat e) by sodium-nitrite was studied under perfect ecological conditions in Ant arctica. Short-term spikes (signals) ill optical density of the examined so lution were found. Special features of these signals, such as the high pene trating ability, the obvious dependence of number of signals on the Sun' lo ngitude, and the high speed of propagation (V greater than or equal to 3000 00 km/s), indicate the astrophysical origin and possible gravitational caus ality of these signals.