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The United States Physics Olympiad (USAPhO) is a high school physics competition run by the American Association of Physics Teachers and the American Institute of Physics to select the team to represent the United States at the International Physics Olympiad (IPhO). The team is selected through a series of exams testing their problem solving ...
In atomic physics, spin–orbit coupling, also known as spin-pairing, describes a weak magnetic interaction, or coupling, of the particle spin and the orbital motion of this particle, e.g. the electron spin and its motion around an atomic nucleus. One of its effects is to separate the energy of internal states of the atom, e.g. spin-aligned and ...
Ligand-Field scheme summarizing σ-bonding in the octahedral complex [Ti(H 2 O) 6] 3+. In molecular symmetry terms, the six lone-pair orbitals from the ligands (one from each ligand) form six symmetry-adapted linear combinations (SALCs) of orbitals, also sometimes called ligand group orbitals (LGOs).
The International Physics Olympiad (IPhO) is an annual physics competition for high school students. It is one of the International Science Olympiads. The first IPhO was held in Warsaw, Poland in 1967. [1] Each national delegation is made up of at most five student competitors plus two leaders, selected on a national level.
Updated December 3, 2024 at 5:08 AM Nicolas Economou/NurPhoto via Getty Images Two flight attendants for Delta Air Lines were pulled from an international flight after failing a breathalyzer test ...
Beau Shroyer and his wife moved to Angola to serve as long-term missionaries through the organization SIM. In a statement, SIM said it was "heartbroken" to learn of Beau Shroyer's death and was ...
November 11, 2024 at 8:26 AM. President-elect Trump said Democrats made a “BIG mistake” getting involved with former Rep. Liz Cheney (R-Wyo.) and her father, former Vice President Dick Cheney ...
[3] The Hubbard model introduces short-range interactions between electrons to the tight-binding model, which only includes kinetic energy (a "hopping" term) and interactions with the atoms of the lattice (an "atomic" potential). When the interaction between electrons is strong, the behavior of the Hubbard model can be qualitatively different ...