Quantum Physics Made Relatively Simple: A Mini Course from Nobel Prize-Winning Physicist Hans Bethe

hans-betheAn émigré from Nazi Germany, Hans Bethe joined Cornell’s physics department back in 1935. There, he built a remarkable career for himself. A nuclear physicist, Bethe made key contributions to the Manhattan Project during World War II. After the war, he brought stellar young physicists like Richard Feynman from Los Alamos to Ithaca and turned Cornell’s physics department into a top-notch program. In 1967, he won the Nobel Prize for “his groundbreaking work on the theory of energy production in stars.”

As a tribute to Bethe, Cornell now hosts a web site called Quantum Physics Made Relatively Simple, where you can watch three lectures presented by Bethe in 1999. They’re a little different from the usual lectures you encounter online. In these videos, Bethe is 93 years old, older than your average prof. And he presents the lectures not in a Cornell classroom, but at the Kendal of Ithaca retirement community, which gives them a certain charm. You can watch them here:

Lecture 1: Here Bethe “introduces quantum theory as ‘the most important discovery of the twentieth century’ and shows that quantum theory gave us ‘understanding and technology.’ He cites computers as a dramatic realization of applied quantum physics.”

Lecture 2: “By the 1920s, physicists were driving to synthesize early quantum ideas into a consistent theory. In Lecture 2, Professor Bethe relates the exciting theoretical and experimental breakthroughs that led to modern quantum mechanics.”

Lecture 3:  In the last lecture, “Professor Bethe recalls work on the interpretation of the wave function, the Heisenberg Uncertainty Principle, and the Pauli Exclusion Principle. He shows how quantum theory forced discussion of issues such as determinism, physical observables, and action-at-a-distance.”

You can watch an introduction to the lecture series here. You can also find Bethe’s lectures listed in our collection of Free Online Physics Courses, part of our collection of 825 Free Online Courses.

via Kottke

Related Content:

Richard Feynman Presents Quantum Electrodynamics for the NonScientist

‘The Character of Physical Law’: Richard Feynman’s Legendary Lecture Series at Cornell, 1964

Leonard Susskind Teaches You “The Theoretical Minimum” for Understanding Modern Physics


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  1. Gerald Segal says . . . | November 17, 2013 / 9:59 pm

    Here’s a song about all that:nnhttp://www.reverbnation.com/gerrysegal/song/19027520-quantum-love-song

  2. Bill Physics galaxy says . . . | February 5, 2014 / 3:57 am

    it just great and powerful.

  3. Tadele Tekeba says . . . | July 26, 2014 / 3:22 am

    pleace define quantum mechanics

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