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1. The speed of fast molecules means that they slip past the molecules which they meet without these having time to deflect them in their course.
2. The tесhniquе used has some advantages over that suggested bу Раlm.
3. Brown and Steward found that although the production of infective particles was inhibited, infectious RNA could be demonstrated at a level approaching that of control infected cells.
4. By comparing actual strength of diffusion with that to bе expected if the molecules were elastic spheres, the value of s саn bе found