Because "The word radiation is commonly used in reference to ionizing radiation only (i.e., having sufficient energy to ionize an atom), but it may also refer to non-ionizing radiation (e.g., radio waves or visible light). The energy radiates(i.e., travels outward in straight lines in all directions) from its source"
Radiation is emitted from something and travels from its point of origin to somewhere else. When radiation hits something else (and is therefore stopped) the thing that has been hit is said to have been irradiated. Thus a sunbather is undergoing irradiation by radiation emitted by the sun.
Metaphor.
Particles is one thing, waves is something else. Heat transferred by the motion of particles can be conduction or convection. Heat transferred by electromagnetic waves is radiation.
Mnemonic device
Black holes are believed to emit something called Hawking radiation.
yes
Repository
It was called centigrade.
A definition for poison is something that can be harmful, unpleasant, and fatal. Radiation can be harmful therefor radiation could be a poison.There is something called acute radiation syndrome which is also called radiation poisoning. This occurs when there is destruction of living tissue due to the effects of being exposed to high levels of radiation.
yes but there not called playoffs they are called something else
A centimetre, at least, because otherwise it would be called something else. It could be a millimetre but not a smaller unit.A centimetre, at least, because otherwise it would be called something else. It could be a millimetre but not a smaller unit.A centimetre, at least, because otherwise it would be called something else. It could be a millimetre but not a smaller unit.A centimetre, at least, because otherwise it would be called something else. It could be a millimetre but not a smaller unit.
Is called breakfast. Then something else for lunch. And something else for dinner