How Does A 1.58-Dimensional Object - Numberphile Work?

A 1.58-dimensional object sounds strange, but it’s just a fun way to think about how space can be partially filled, like when you’re only halfway done with your snack.

Imagine you have a line, which is 1 dimension, it goes straight. Now imagine you have a square, which is 2 dimensions, it has width and height, like a piece of paper. But what if something isn’t fully 2D, but partially filled in? That’s where 1.58 dimensions come in!

What Does "1.58 Dimensions" Really Mean?

Think about drawing on a piece of paper with a pencil that only covers part of the page, maybe it looks like a wiggly line. This is similar to how a 1.58-dimensional object works: it’s not just a line, but also a little bit of a square.

It’s like having a half-finished puzzle, you can still see the shape, but it's not fully put together yet. The number 1.58 is just telling us how much space this object takes up, somewhere between a line and a square!

So when we say something has 1.58 dimensions, it means it’s kind of in between being flat like paper and being full like a box, and that's what makes it cool!

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Examples

  1. A line is 1D, a square is 2D, but something between them can be 1.58D.
  2. Imagine a shape that's like a stretched-out path with some extra twists and turns.
  3. It's like a tree growing in a way that isn't fully flat or fully 3D.

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