Research Article | Published:

Dynamical Aspects of Electromagnetism

Naturevolume 128pages369371 (1931) | Download Citation



SCIENCE develops side by side with a number of fundamental questions, some of which, if not all, are answered differently or even in an entirely contradictory manner by different investigators and at different periods. They return in ever-changing form; they will perhaps never get their final answers, and precisely for that reason always stimulate investigation. One such question, formulated by the natural philosophers of antiquity, is this. Is space empty or filled?

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  1. University, Oslo, Norway

    • Prof. V. K. F. BJERKNES


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