Mechanical properties of carbon nanotubes Mechanical properties of carbon nanotubes The mechanical properties of carbon nanotubes reveal them as one of the strongest materials in nature. Carbon nanotubes (CNTs) are long hollow cylinders of graphene. Although graphene sheets have 2D symmetry, carbon nanotubes by geometry have different properties in axial and radial directions. It has been shown that CNTs are very strong in the axial direction. Young's modulus on the order of and tensile strength of were obtained. Carbon nanotubes are the strongest and stiffest materials yet discovered in terms of tensile strength and elastic modulus respectively. This strength results from the covalent sp bonds
The Mighty Atom (Thunderbirds) none of the regular characters. "The Mighty Atom" is the only episode of "Thunderbirds" to feature all of the regular characters and all of the "Thunderbirds" machines. It also marks the first appearance of "Thunderbird 4" in the series. The two-part version that was broadcast in some UK regions separates the older footage from the material that was filmed for the episode's expansion. Certain scenes were altered to create this format; these include one of a news conference in Melbourne, which was shortened, and another in which the Tracy brothers play a practical joke on Lady Penelope, which was removed