Break

Reasonable functional and geometric examples.

Limitless triangle structures. Like a rook of British Museum, 30 st Mary Axe, Incheon international airport, Canary Wharf station, City hall and etc.

The triangle shape is strong enough to build structures. If you see that structures with triangle shapes, it repeat same shapes and those triangles meet all three lines in triangle shape. It reminds me Fractal. Fractal doesn't mean only repetition also same or similar shapes when you look at the shape zoom in or zoom out.

Fractal

Fractal has lots of characteristics.

- It has a fine structure at arbitrarily small scales.

- It i too irregular to be easily described in traditional Euclidean geometric language.

- It is self-similar.

- It has a simple and recursive definition.

It is a rough or fragmented geometric shape that can be split into parts, each of which is a reduced- size copy of the whole, a property called self-similarity.

Approximate fractals are easily found in nature. These objects display self-similar structure over an extended, but finite, scale range. Examples include clouds, river, networks, fault lines, mountain ranges, crater, snow flakes, crystals, lightning, cauliflower or broccoli, and systems of blood vessels and pulmonary vessels, and ocean waves. Coastlines may be loosely considered fractal in nature.

A fractal that models the surface of a mountain.