In and engineering point of veiw, what function or purpose does the segements of a hollow bamboo serve?

Question

As in stregthening, flexibility, etc.

Answer 1

The solid walls separating the segments cause the bamboo to be rigid in cross section, which makes the stalks much stronger. If it were a hollow tube without walls inside, the tube could be crumpled and the bamboo would fall down.

The voids cause the plant as a whole to be much lighter.

Answer 2

while still staying strong, the segments are light and flexible. the air pockets in the segments are useful for cheap insulation (on houses) and they look pretty.