Assertion: cosmic ray's energy | /r/MadeOf | small particles
Facets:
value: inconceivably
type: MANNER
Source sentences:
text: I made some progress in solving the mystery until in 1899 I obtained mathematical and experimental proofs that the sun and other heavenly bodies similarly conditioned emit rays of great energy which consist of inconceivably small particles animated by velocities vastly exceeding that of light.