The 289 area code was created as an area code overlay for the Mississauga (Streetsville) area. Unlike the previous solutions, this process did not require the place to be geographically separated by different area codes.
Ionizing radiation is a term used for radiation whose quanta have energy to directly or indirectly ionize (one or more electrons are released from the atom of the given substance) molecules or atoms while passing through matter, hence the name ionizing radiation.
Energy is distributed by radiation, conduction and convection. Radiation is the movement of energy in waves/particles at or near the speed of light. All objects emit radiation and the amount and wavelength of emitted radiation depends on temperature. Conduction is the movement of energy by direct contact.