Determining the value of the fine-structure constant from a current balance: Getting acquainted with some upcoming changes to the SI

@article{Davis2017DeterminingTV,
  title={Determining the value of the fine-structure constant from a current balance: Getting acquainted with some upcoming changes to the SI},
  author={Richard S. Davis},
  journal={American Journal of Physics},
  year={2017},
  volume={85},
  pages={364-368}
}
  • Richard S. Davis
  • Published 2017
  • Physics
  • American Journal of Physics
  • The revised International System of Units (SI), expected to be approved late in 2018, has implications for physics pedagogy. The ampere definition, which dates from 1948, will be replaced by a definition that fixes the numerical value of the elementary charge e in coulombs. The kilogram definition, which dates from 1889, will be replaced by a definition that fixes the numerical value of the Planck constant h in joule seconds. Existing SI equations will be completely unaffected. However, there… CONTINUE READING
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