Location of Conference
Nuclear science is the study of the atomic world. In nuclear science, the word 'nuclear' means 'of or relating to or constituting the nucleus of an atom'. Atoms are the fundamental constituents of everything around us, and we ourselves are entirely composed of them.
We are all exposed constantly to ionising radiation from a variety of natural and artificial sources. The sun is a major source of 'cosmic radiation'. Skiing at high altitudes and airline flights will increase our exposure to cosmic radiation.
Many buildings also emit ionising radiation simply because the materials that were used to build them (clay bricks, granite, etc) are naturally radioactive.
'Radioactivity' is the energy and mass released by spontaneous changes in the nucleus of an atom. However, 'Radiation' is energy that travels ('radiates') as waves or particles. - See more at: http://www.ansto.gov.au/NuclearFacts/AboutNuclearScience/index.htm#sthash.KHPHpaNQ.dpuf