A salient property of water waves is dispersiveness, i.e. the longer the wave, the faster it moves.

The Greek and the Roman, capable of imagining the city which triumphs over the dispersiveness of the countryside, stopped short at the city walls.

TMCH tubes can have a subnanometer-diameter, lengths tunable from hundreds of nanometers to tens of microns and show excellent dispersiveness owing to extremely weak mechanical coupling between the tubes.