The measurement and the phenomenon become combined

[keannu]

Source : Korean SAT English, 67p, Q3 by Education Broadcasting System

Translating theory into something that can be assessed in the physical environment means that phenomena are made measurable. It is often assumed that the phenomenon being measured is the same no matter how it is measured. Translations of theory into practice may differ, but these do not alter the nature of the phenomenon being measured. Without this assumption, measurement between different individuals made in different places or at different times could not be compared. The assumption does not, however, mean that this viewpoint is correct. Within quantum physics there is a view that the observer and the phenomenon cannot be separated. The observer and phenomenon make up a single system, a measurement system. In this context it is not possible to separate the measurement made from the measurement system within which it was made. The measurement and the phenomenon become combined in an unbreakable link in the measurement system. It is impossible to talk of a separate existence for the phenomenon and so also, therefore, to talk of an independent measurement of that phenomenon. This means that within the supposedly objective, hard science of physics, it is accepted that reality and how it is measured form an inseparable whole.

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This passage is really hard to understand. I applied all the theories, even religious and philosophical ones and Einstein's theory of relativity.
Which of the following or any other do you think this passage, especially the underlined parts, intends to say ?
1. The measurement results can be objective in any measurements systems - just one result, but can be perceived as different depending on the testers.
- For example, even the result of measuring the absolute length of 10cm of an object can be perceived as 9cm, 10cm, 11cm, etc depending on the measurer.
2. The measurement results can be subjective and differ depending on the testers.
- For example, even the result of measuring the length of 10cm of an object can differ as 9cm, 10cm, 11cm, etc depending on the measurer.

 

[Tarheel]

They are talking about quantum physics (or quantum mechanics). It means the act of measuring something influences what is being measured. It's hard to argue with that when you consider we're talking about matter at the atomic level. Or subatomic level.

 

[Glizdka]

Just to point you towards something you could read up on, it's about Heisenberg's uncertainty principle and Schrödinger's USB cat, or more broadly, the measurement problem.

In quantum dynamics, measurement affects the object measured. You have to "see" what you want to measure. In order to "see" something, you need to "touch" the object with something, say, shoot a beam of electrons at it. This means you have to interact with the object that you want to measure, thus altering its state. It's impossible to measure something and leave it as it was before the measurement. Therefore, when the same object is measured a second time, the results may differ from the first time you measured it.

 

[5jj]

1. The measurement results can be objective in any measurements systems - just one result, but can be perceived as different depending on the testers.
- For example, even the result of measuring the absolute length of 10cm of an object can be perceived as 9cm, 10cm, 11cm, etc depending on the measurer.
2. The measurement results can be subjective and differ depending on the testers.
- For example, even the result of measuring the length of 10cm of an object can differ as 9cm, 10cm, 11cm, etc depending on the measurer.

Are those your ideas, keannu?

 

[keannu]

Are those your ideas, keannu?

Yes, they are.

 

[5jj]

Neither of them is an accurate paraphrase of the original.