- Gold Bar, Washington (Wikipedia)
Gold Bar is a city in Snohomish County, Washington, United States. It is located on the Skykomish River between Sultan and Index, connected by U.S. Route 2. The population was 2,403 at the 2020 census.
- Bohr model (Wikipedia)
In atomic physics, the Bohr model or Rutherford–Bohr model is an obsolete model of the atom, presented by Niels Bohr and Ernest Rutherford in 1913. It consists of a small, dense nucleus surrounded by orbiting electrons. It is analogous to the structure of the Solar System, but with attraction provided by electrostatic force rather than gravity, and with the electron energies quantized (assuming only discrete values).