# science

Notes on the Quantum Theory of Angular Momentum

Notes on the Quantum Theory of Angular Momentum by Eugene Feenberg This classic, concise text has served a generation of physicists as an exceptionally useful guide to the mysteries of angular momenta and Clebsch-Gordon Coefficients. Derived from notes originally prepared to assist graduate students in reading research papers on atomic, molecular, and nuclear structure, the text first reviews the basic elements of quantum theory. It then examines the development of the...

The Atom and Subatomic Particles

Students will classify the subatomic particles protons, neutrons, and electrons using basic characteristics. Next, will use the Periodic Table of Elements to find the numbers of protons, neutrons, and electrons by using the atomic number and atomic mass of various elements. This is a perfect opportunity to make students realize that so much of chemistry is based on very simple math that is easy to learn with practice. Als0 in “BUNDLE - The Atom”…save $! #atom #chemistry #physicalscience

Have We Been Interpreting Quantum Mechanics Wrong This Whole Time?

When light illuminates a pair of slits in a screen (top), the two overlapping wavefronts cooperate in some places and cancel out in between, producing an interference pattern. The pattern appears even when particles are shot toward the screen one by one (bottom), as if each particle passes through both slits at once, like a wave.

Physicists Create Quantum Knots for the First Time | Physics | Sci-News.com

Topological structure of a quantum-mechanical knot soliton: the white ring is the core of the soliton (field pointing down), and the surrounding colored bands define a set of nested tori that illustrate the linked structure of its field lines. The boundary of the knot lies near the dark grey lines (field pointing up). Image credit: David Hall.