Is a line observable(in real life)?

In summary, the question is whether a line with thickness only in one dimension can be observed in real life. At the micro level, even atoms have thickness, making it difficult to construct a perfect line or plane in reality. However, if we broaden the definition of "observation" to include how particles behave in a 1D space, then the existence of 1-dimensional objects can be observed through the behavior of quantum wires and Luttinger liquid. Ultimately, the concept of perfect geometry may be abstract and unattainable in real life.
  • #1
hackhard
183
15
can a line (thickness only in 1 dimension ) be observed in real life ?
since ,at micro level , even atoms have thickness,
is it even possible to really construct a line or point or plane in reality?
 
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  • #2
I don't believe so.
 
  • #3
If thickness is your only concern, sure, you can have a 0 thickness line or plane in real life. Consider the top surface of a box.

But if uniformity/perfection is also a criteria, we're back to no.
 
  • #4
All geometry is abstract, you'll never observe a perfect sphere, cube, line...
 
  • #5
hackhard said:
can a line (thickness only in 1 dimension ) be observed in real life ?
since ,at micro level , even atoms have thickness,
is it even possible to really construct a line or point or plane in reality?

The problem here is your criteria of to "be observed". What does that mean? To observe with your eyes?

We "observe" electron via how it interacts and affect others. So, does this qualify for electrons to be "observed in real life"? Does anyone question the validity of the existence of electrons?

If we consider that we can observe electrons with such criteria, then we should also apply that same criteria in observing 1-dimensionality. In other words, what would happen IF there is such a thing as a 1-dimensional object, and how would something (particles) being confined in such a 1D space behave? Because if we know how they would behave, and we detect such behavior, would this not constitute an "observation in real life" of 1D confinement?

So, quantum wires and Luttinger liquid behavior, anyone?

Zz.
 
  • #6
thanx for help
 

1. Is a line observable in real life?

Yes, a line is observable in real life. It is a geometric concept that can be seen and measured in the physical world.

2. How can a line be observed in real life?

A line can be observed in real life by looking at objects or structures that have a linear shape, such as a road, a fence, or the edge of a table. It can also be observed through the use of tools like rulers or measuring tapes.

3. Can a line be observed without any tools?

Yes, a line can be observed without any tools if it is a naturally occurring line, such as the horizon or the edge of a shadow. However, in most cases, tools are necessary to accurately observe and measure a line in real life.

4. Is a line observable in all dimensions?

Yes, a line is observable in all dimensions. It is a fundamental geometric concept that exists in one-dimensional space, but it can also be extended to higher dimensions through the use of mathematics and visualization techniques.

5. How do scientists use lines in their research?

Scientists use lines in their research in various ways, depending on their field of study. For example, in physics, lines are used to represent motion and forces in diagrams, while in biology, lines can be used to show relationships between different species in evolutionary trees. In general, lines are a useful tool for visualizing and understanding complex concepts in science.

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