Complex sentence: This strength results from the covalent sp 2 bonds formed between the individual carbon atoms.Multi-walled carbon nanotube was tested to have a tensile strength of 63 gigapascals (GPa).
Split into simpler sentences: This strength results from the covalent sp 2 bonds formed between the individual carbon atoms. Multi-walled carbon nanotube was tested to have a tensile strength of 63 gigapascals (GPa).