Convection vs. Radiation

Convectionnoun

The process of conveying something.

Convectionnoun

(physics) The transmission of heat in a fluid by the circulation of currents.

Convectionnoun

(meteorology) The vertical movement of heat and moisture, especially by updrafts and downdrafts in an unstable air mass. The terms convection and thunderstorm are often used interchangeably, although thunderstorms are only one form of convection. Towering cumulus clouds are visible forms of convection.

Convectionnoun

The act or process of conveying or transmitting.

Convectionnoun

A process of transfer or transmission, as of heat or electricity, by means of currents in liquids or gases, resulting from changes of temperature and other causes.

Convectionnoun

the transfer of heat through a fluid (liquid or gas) caused by molecular motion

Convectionnoun

(meteorology) the vertical movement of heat or other properties by massive motion within the atmosphere

Convection

Convection is single or multiphase fluid flow that occurs spontaneously due to the combined effects of material property heterogeneity and body forces on a fluid, most commonly density and gravity (see buoyancy). When the cause of the convection is unspecified, convection due to the effects of thermal expansion and buoyancy can be assumed.

Radiationnoun

The shooting forth of anything from a point or surface, like diverging rays of light.

Radiationnoun

The process of radiating waves or particles.

Radiationnoun

The transfer of energy via radiation (as opposed to convection or conduction).

Radiationnoun

Radioactive energy.

Radiationnoun

The act of radiating, or the state of being radiated; emission and diffusion of rays of light; beamy brightness.

Radiationnoun

The shooting forth of anything from a point or surface, like the diverging rays of light; as, the radiation of heat.

Radiationnoun

energy that is radiated or transmitted in the form of rays or waves or particles

Radiationnoun

the act of spreading outward from a central source

Radiationnoun

syndrome resulting from exposure to ionizing radiation (e.g., exposure to radioactive chemicals or to nuclear explosions); low doses cause diarrhea and nausea and vomiting and sometimes loss of hair; greater exposure can cause sterility and cataracts and some forms of cancer and other diseases; severe exposure can cause death within hours;

Radiationnoun

the spontaneous emission of a stream of particles or electromagnetic rays in nuclear decay

Radiationnoun

the spread of a group of organisms into new habitats

Radiationnoun

a radial arrangement of nerve fibers connecting different parts of the brain

Radiationnoun

(medicine) the treatment of disease (especially cancer) by exposure to radiation from a radioactive substance

Radiation

In physics, radiation is the emission or transmission of energy in the form of waves or particles through space or through a material medium. This includes: electromagnetic radiation, such as radio waves, microwaves, infrared, visible light, ultraviolet, x-rays, and gamma radiation (γ) particle radiation, such as alpha radiation (α), beta radiation (β), proton radiation and neutron radiation (particles of non-zero rest energy) acoustic radiation, such as ultrasound, sound, and seismic waves (dependent on a physical transmission medium) gravitational radiation, radiation that takes the form of gravitational waves, or ripples in the curvature of spacetimeRadiation is often categorized as either ionizing or non-ionizing depending on the energy of the radiated particles.