The structure is important for many reasons. For example, the bond structure gives the materials incredible mechanical strength, stronger than steel. They also have incredible electrical properties, better than copper. And as semiconducting devices, their properties are superior to almost any other material, such as silicon. However, scientists are still working on ways of manufacturing them at low cost, and integrating them into consumer products. One of the biggest challenges is making nanotubes of all the same structure. Therefore, to harness the material for practical applications, controlling the atomic structure is extremely important. This app demonstrates that structure in graphical detail.