Question

Richard Feynman, in his book The Character of Physical Law, states: “A philosopher once said, ‘It is necessary for the very existence of science that the same conditions always produce the same results.’ Well, they don’t!” Who was speaking of classical physics, and who was speaking of quantum physics?

Name: Problem 54, Chapter 32: Conceptual Physics
Uploaded: 2019-08-31T07:09:24-08:00
Duration: 4 min 1 s
Channel: Shital Rijal
Description: Richard Feynman, in his book The Character of Physical Law, states: “A philosopher once said, ‘It is necessary for the very existence of science that the same conditions always produce the same results.’ Well, they don’t!” Who was speaking of classical physics, and who was speaking of quantum physics?

   Richard Feynman, in his book The Character of Physical Law, states: “A philosopher once said, ‘It is necessary for the very existence of science that the same conditions always produce the same results.’ Well, they don’t!” Who was speaking of classical physics, and who was speaking of quantum physics?

Conceptual Physics

Paul G. Hewitt 12th Edition

Chapter 32, Problem 54

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Solved by Expert Shital Rijal

08/31/2019

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In classical physics, it is generally assumed that the same conditions will always produce the same results. This is a fundamental principle in the study of physics, particularly in the macroscopic world. This can be represented as: \[ \text{{If }} A \text{{ then Show more…

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Richard Feynman, in his book The Character of Physical Law, states: “A philosopher once said, ‘It is necessary for the very existence of science that the same conditions always produce the same results.’ Well, they don’t!” Who was speaking of classical physics, and who was speaking of quantum physics?

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Key Concepts

Indeterminism in Quantum Physics

Quantum physics, on the other hand, embraces indeterminism: the idea that identical conditions do not necessarily yield identical results. In the quantum realm, outcomes are inherently probabilistic, and the inherent uncertainties in phenomena mean that even with complete knowledge of a system’s state, only statistical predictions can be made.

Determinism in Classical Physics

In classical physics, determinism is the concept that if you know the initial conditions of a system completely, you can predict its future behavior with complete accuracy. This reflects the idea that identical conditions always produce identical results, an assumption that has historically underpinned much of scientific inquiry in this framework.

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