Nature allows only experimental situations to occur which can be described within the framework of the formalism of quantum mechanics
Interpretation
This quote emphasizes that nature operates within the rules of quantum mechanics and that our understanding is limited to experimental observations.
Werner Heisenberg's quote reflects the idea that the natural world behaves according to the principles of quantum mechanics, allowing us to understand and describe phenomena only through empirical experiments. It highlights the limitations of classical physics in capturing the intricacies of nature at a quantum level, suggesting that our knowledge is constrained to what can be measured and observed experimentally.
In practice
In a discussion about the implications of quantum mechanics on modern physics.
Although the theory of relativity makes the greatest of demands on the ability for abstract thought, still it fulfills the traditional requirements of science insofar as it permits a division of the world into subject and object (observer and observed) and, hence, a clear formulation of the law of causality.
It was about three o'clock at night when the final result of the calculation [which gave birth to quantum mechanics] lay before me ... At first I was deeply shaken ... I was so excited that I could not think of sleep. So I left the house ... and awaited the sunrise on top of a rock.
It is generally believed that our science is empirical and that we draw our concepts and our mathematical constructs from the empirical data. If this were the whole truth, we should, when entering into a new field, introduce only such quantities as can directly be observed, and formulate natural laws only by means of these quantities.
When I meet God, I am going to ask him two questions: Why relativity ? And why turbulence ? I really believe he will have an answer for the first.
The end of the First World War had thrown Germany's youth into great turmoil. The reins of power had fallen from the hands of a deeply disillusioned older generation, and the younger ones drew together in larger and smaller groups to blaze new paths or, at least, to discover a new star to steer by.
The Same organizing forces that have shaped nature in all her forms are also responsible for the structure of our minds.
I always say, 'Let your experiment speak to you.' What I mean by that is I - actually, we, or, at least, I'm not smart enough, actually, to guess how nature is working, but by looking and doing the right experiments and paying close attention to the subtleties of it, you start to catch on.
What works most effectively for quelling disease outbreaks like Ebola is not quarantining huge populations. What works is focusing on and isolating the sick and those in direct contact with them as they are at highest risk of infection. This strategy worked with SARS, and it worked during the H1N1 flu pandemic.
This new power, which has proved itself to be such a terrifying weapon of destruction, is harnessed for the first time for the common good of our community.
We wish to discuss a structure for the salt of deoxyribose nucleic acid. D.N.A. This structure has novel features which are of considerable biologic interest.
The supermoon is a 16-inch pizza compared with a 15-inch pizza. It's a slightly bigger moon; I ain't using the adjective 'supermoon.'
The overwhelming majority of theories are rejected because they contain bad explanations, not because they fail experimental tests.
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