What physicists think about physics: What is real?

In summary, the article discusses the different definitions of what is considered "real" in physics. The author argues that reality is what exists by definition and is detected by the senses. He also notes that our understanding of the universe is not perfect, but we still get results based on that understanding.

Please check the things that are real.

  • The earth

    Votes: 8 80.0%
  • Colors

    Votes: 5 50.0%
  • Wavelength

    Votes: 7 70.0%
  • Hallucinations

    Votes: 6 60.0%
  • Atoms

    Votes: 7 70.0%
  • Excited states of atoms

    Votes: 6 60.0%
  • Mass

    Votes: 7 70.0%
  • Wave-function - state of a system

    Votes: 5 50.0%
  • Electrons

    Votes: 7 70.0%
  • Direction of time

    Votes: 7 70.0%

  • Total voters
    10
  • Poll closed .
  • #1
Ivan Seeking
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A survey taken among physicists about the concept of "real" in physics is linked and I think most interesting. First, I am posting a similar poll for comparison.

The survey is at the bottom of the linked page:
http://physicsweb.org/article/world/15/4/2/1#2

I posted this in the Theoretical Physics section also. Please vote in the forum most appropriate to your perspective; but not both.


At Whimms suggestion, all non-science persons please vote here. This will add another dimension to the poll.
Thanks Wimms
 
Last edited:
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  • #2
All of them are real...and many other...
 
  • #3
Fascinating article, I was suprised at the differences in defenition of what is real.
Reality is what exists by defenition and perhaps isn't only detected by the senses, that the degree of truthfulness of an abstract concept such as the model of the atom(very imperfect at first)can lead to experiments that can readily be seen with the eyes and lead to practical uses, that all forms of reasoning are other senses not unlike the eye but not as clear. Our understanding of the universe isn't perfect but we get results anyway in relation to that understanding just as we get results from our understanding of a concept such as hallucinations, in other words we know that hallucinating is a sign that something is wrong and we need water or sleep or mushrooms(store bought instead), the particular hallucination itself is most likely not real or a less true representation of reality but it is a choice that we make to see the truthfulness of the concept or its practical use or choose to see it as meaning the actual hallucinations themselves and unreal and useless. Real things get good results, imaginary things usually get poor results.
 
  • #4
Weird, I could note only Earth and Time as real. Earth because it is real at its level of abstraction, time because it touches everything. All the rest seems either subjective or merely description of the day.
 
  • #5
Notably, this survey left out the rudamentary catagories of information, entropy, change, etc. Makes you wonder if the author was biased...
 
  • #6
The only thing that I didn't "check" off as real was the direction of time, as time is an 'ideal' exsistent only as the illusion of motion/movement.

It is, none the less, sort of humorous to me that the only thing that anyone can ever do, to "Attest to a Reality", is to make a subjective testimony to it, nothing more, nothing less.

A pressure wave in the atmosphere, that's the proof!
 

1. What is the goal of physics?

The goal of physics is to understand and explain the fundamental laws and principles that govern the behavior of matter and energy in the universe.

2. How do physicists define "real" in terms of physics?

In physics, "real" refers to anything that can be observed and measured in the physical world. This includes tangible objects, as well as intangible concepts such as forces and energy.

3. Do physicists believe in the existence of alternate realities or dimensions?

There is currently no scientific evidence to support the existence of alternate realities or dimensions. However, some theories in physics, such as string theory, suggest the possibility of multiple universes or dimensions.

4. What role does mathematics play in the study of physics?

Mathematics is crucial in physics as it allows us to describe and understand the physical world in a precise and quantitative manner. Many physical theories and laws are expressed and tested using mathematical equations.

5. How do physicists approach the concept of time in their studies?

Physicists view time as a fundamental aspect of the universe and study it through various theories and experiments. These studies have led to the understanding that time is relative and can be affected by factors such as gravity and velocity.

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