Sources Of Radiant Energy 193c53

Sources of Radiant Energy Atoms absorb energy from an outside source and release (or "emit") this energy as electromagnetic radiation. This radiation can be in the form of waves of many different wavelengths or frequencies. Many energy sources emit radiant energy. The sun and other stars are luminous or "light-giving" objects that produce radiant energy from nuclear reactions. Luminescence may result from biological processes (e.g., fireflies), from chemical reactions like burning kerosene in a lamp, from friction, or from electricity, as in a light bulb. The sun is the earth’s primary source of radiant energy. A significant portion of the radiant energy from the sun actually gets converted to other forms of energy once it reaches the earth.For example, the process of photosynthesis byplants converts the radiant energy from the sunto chemical energy. Both the atmosphere and the surface of the earth absorb large portions of the sun’s radiant energy and convert it to heat.The resulting heat contributes to the formation of winds in our atmosphere. Both these windsand the heat of the sun play a critical role in theearth’s hydrologic cycle. "Radiant" just means energy that can move from one place to another without a medium to carry it. So any form of electromagnetic 'radiation' qualifies. That includes heat, light, and radio, generated by things such as: -- toaster -- light bulb -- fireplace -- microwave oven -- TV remote -- garage-door opener -- CB radio -- the sun -- tanning light -- camera strobe -- GPS satellite -- TV satellite -- car headlight -- steam-iron Everyday Examples of Radiant Energy Virtually anything that has a temperature gives off radiant energy. Some examples of radiant energy include:       

The heat emitted from a campfire Emission of heat from a hot sidewalk X-rays give off radiant energy Microwaves utilize radiant energy Space heaters produce radiant energy Heat created by the body can be radiant energy Lighting fixtures

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Home heating units Fixtures that convert solar energy to heat Visible light Gamma rays Radio waves Electricity A surface heated by the sun converts the energy of the light into infrared energy which is a form of radiant energy Cell phones utilize radiant energy to function Magnetic motor generators that utilize neodymium magnets create radiant energy Audio signals that come to home or cars via radio waves Ultraviolet light Infrared radiation The light emitted from a campfire The light generated from a light bulb A heated brake disc giving off heat The heat from a grill used for cooking Water can reflect or absorb radiant energy Soil can absorb radiant energy Light from the sun Heat emitted from a bunsen burner Heat from an overused computer Heat caused by friction Heat emitted from a dryer The heat generated by a light bulb Heat generated through reflection of visible light A window reflects radiant energy Heat created from a stove or oven Heat emitted from a washing machine

importance of radiant energy in your daily life the Sun, sunlight is our primary source of radiant energy, without it- life on Earth would pretty much cease to exist. Radiant energy is given off by space heaters, toasters, stove burners, light bulbs (give radiant energy as heat and as light), etc.. All electromagnetic energy from gamma rays, x-rays, thru radio waves are types of radiant energy.