Man-made threats such as nuclear war or nanotechnology are harder to predict than natural threats, due to the inherent methodological difficulties in the social sciences.
en.wikipedia.org But also new technologies that are being developed, such as nanotechnology, biotechnology, synthetic biology, etc., represent challenges for the sciences.
en.wikipedia.org Unfortunately, nanotechnology, and specifically nanomedicine, are very new fields of study.
en.wikipedia.org At present, the field of microtechnology is expanding toward nanotechnology.
en.wikipedia.org Along with cumulenes, polyynes are distinguished from other organic chains by their rigidity, which makes them promising for molecular nanotechnology.
en.wikipedia.org