| http://www.w3.org/ns/prov#value | - ic (with higher energy) X rays and gamma rays produced as the normal accompaniment of the operations of ultrahigh-energy machines (i.e., particle accelerators such as the Van de Graaff generator, the cyclotron and its variants, and the linear accelerator).The behaviour of light seems to have interested ancient philosophers but without stimulating them to experiment, though all of them were impress
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