A residential smoke detector is the most familiar piece of<unk>  for some people<unk>  is technology that involves the<unk>  reactions of atomic nuclei. Among the notable<unk> es are<unk>  reactors,<unk>  medicine and<unk>  weapons. It is also used, among other things, in smoke detectors and gun sights.
Nuclear technology
Bioelectromagnetic medicine
Nutritional science
Radionics
Cryonics
Radiation chemistry
Assistive technology
Clinical engineering