Niels Bohr on the structure of atoms and molecules part 1

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Wojciech Sady

Published on Nov 18, 2024
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Bohr used extensive knowledge of physics in his investigations, and I will tell you about that first. Most of the theories he used were developed without any connection with the question of the structure of atoms. (1) Bohr used the laws of classical mechanics, which originated in the 17th century and were applied in the 18th century to describe electrical and magnetic phenomena. (2) Maxwell's electrodynamics: electrified bodies generate an electric field around them, electrified bodies in motion generate an electric and magnetic field, electrified bodies undergoing acceleration generate electric and magnetic fields and emit an electromagnetic wave (and light is such a wave). (3) Atoms became components of the scientific picture of the world first in chemistry (Dalton 1808), and then in the corpuscular-kinetic theory of gases (Clausius, Maxwell 1855-1860). But are atoms simple, or are they made of something else in a certain way? How to get into this? (4) Fraunhofer in 1814 discovers 574 dark lines in the solar spectrum, and Bunsen and Kirchhoff observe the same lines emitted by hot gases and absorbed by cold gases.

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