An artificial carbon material constructed at the nanoscale - molecule by molecule. A nanometre is one millionth of a metre. Diamondoid is much stronger than diamond.
Nanobots are machines smaller than the cells in a human body and invisible to the human eye. They can be used to build almost anything, the exception being living organisms. They are capable of 100,000 movements per second, so they work very quickly. A nanofactory containing a trillion nanobots could construct a four- bedroom concrete and glass house in a day.
A swarm of nanobots. As a weapon these machines could enter a human body and instantly clog the arteries causing heart failure. They could also tear a person to pieces – molecule by molecule. A swarm could contain trillions of nanobots.