# Does 1D Line Have Physical Width? Exploring the Concept

• Tarantula
In summary, the conversation discusses the physical width of a 1D line and the potential implications for a 2D object having infinitely many 1D lines. The concept of infinitely small widths in physics is also brought up, as well as the idea of a 2D object being infinitely long or large. The conversation concludes with confusion and a language barrier.

#### Tarantula

Hey!
I have some dumb-smart question
Does 1D line have physical width?
My logic says that mathematically you can go smaller and smaller,but I see there being a problem with 1D having infinitly small width in physics.

If 2D object has infinitly many 1D lines that would suggest that 2D object is also infinitly long/large - for it not to be infinitly long
-it has to have infinitly many smaller infinitys(but that seems to be also flawed)-I draw a circle and started to pull lines from center to edge to visulise it and it seemed to work,but I don't see it being a good answer.
-otherwise it's infinitly large number that is actually a number and isn't infinity atall.
English isn't my first language ,sorry :)

Welcome to PF!

Hey Tarantula! Welcome to PF!
Tarantula said:
Does 1D line have physical width?

There is no width in 1D …

so a 1D line has length but no width.

(btw, you need to use the word "a" more often )

If 2D object has infinitly many 1D lines that would suggest that 2D object is also infinitly long/large - for it not to be infinitly long
-it has to have infinitly many smaller infinitys(but that seems to be also flawed)-I draw a circle and started to pull lines from center to edge to visulise it and it seemed to work,but I don't see it being a good answer.

Sorry, I don't understand.