clockwise on the Gulf of Mexico
counterclockwise on the Gulf of Mexico
- 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).
- Quintana Roo (Wikipedia)
Quintana Roo, officially the Free and Sovereign State of Quintana Roo, is one of the 31 states which, with Mexico City, constitute the 32 federal entities of Mexico. It is divided into 11 municipalities, and its capital city is Chetumal.
