A+E Networks. On this day in 1969, Americaâs first automatic teller machine (ATM) makes its public debut, dispensing cash to customers at Chemical Bank in Rockville Center, New York.
This modification of the energy levels of a hydrogen atom due to a combination of relativity and spin-orbit coupling is known as fine structure.
Biomolecular structure is the intricate folded, three-dimensional shape that is formed by a protein, DNA, or RNA molecule, and that is important to its function. The structure of these molecules is frequently decomposed into primary structure, secondary structure, tertiary structure, and quaternary structure.The scaffold for this structure is provided by secondary structural elements that are hydrogen bonds within the molecule.he structure of these molecules is frequently decomposed into primary structure, secondary structure, tertiary structure, and quaternary structure. The scaffold for this structure is provided by secondary structural elements that are hydrogen bonds within the molecule.