Glossary R

The Environmental Glossary. Letter R +++ Popular Articles: 'Range', 'Recycling', 'Reduce'

A R rating curve is a drawn curve showing the relation between gage height and Discharge of a stream at a given gaging station.

The R-value or "thermal resistance value" is a measure of the resistance of a material to Heat flow. The term is typically used to describe the resistance properties

A RADIANT HEAT TRANSFER is RADIANT HEAT TRANSFER occurs when there is a large difference between the

Deutsch: Strahlung / Español: Radiación / Português: Radiação / Français: Rayonnement / Italiano: Radiazione

In physics, radiation is a process in which energetic particles or energetic waves travel through a vacuum, or through matter-containing media that are not required for their propagation. Waves of a mass filled medium itself, such as water waves or sound waves, are usually not considered to be forms of "radiation" in this sense.

A Radiation: is Radiation is Energy emitted in the form of electromagnetic waves. Radiation has differing characteristics depending upon the wavelength. Because the radiation from the

A Radiative Forcing is a change in the balance between incoming solar radiation and outgoing infrared radiation.

Deutsch: Radioaktivität / Español: Radiactividad / Português: Radioatividade / Français: Radioactivitê ©/ Italiano: Radioattività
Radioactive decay, also known as nuclear decay or radioactivity, is the process by which a nucleus of an unstable atom loses energy by emitting ionizing radiation. A material that spontaneously emits this kind of radiation — which includes the emission of alpha particles, beta particles, gamma rays and conversion electrons — is considered radioactive.

A radioactive waste is the Byproduct of nuclear reactions that gives off (usually harmful) radiation.

A radioactivity is the spontaneous emission of matter or energy from the nucleus of an unstable atom (the emitted matter or energy is usually in the form of alpha or beta particles, gamma rays, or neutrons).

A Radiometer is an instrument for detecting and measuring the intensity of the sun's energy in the electromagnetic spectrum.

Related Articles

Sulfur dioxide ■■■■■■■■
Sulfur dioxide (SO2) is a heavy, smelly gas which can be condensed into a clear liquidused to make sulfuric . . . Read More
Dioxide at top500.de■■■■■■■■
An oxide is a chemical compound that contains at least one oxygen atom and one other element in its chemical . . . Read More
Industrial Air Pollution ■■■■■■■■
Industrial Air Pollution : An Industrial Air Pollution is This term refers to the emissions of the following . . . Read More
Emission at top500.de■■■■■■■■
Emission may refer to exhaust gas, flue gas occurring as a result of the combustion of a fuel or the . . . Read More
Allowance ■■■■■■
Allowance: An allowance is a tradeable permit to emit a specific amount of a pollutant. For example, . . . Read More
Absorber at top500.de■■■■■■
Absorber: In the industrial context, an absorber is a device or system used to remove or absorb a particular . . . Read More
Atmosphere ■■■■■■
An atmosphere is the 500 km thick Layer of air surrounding the earth which supports the existence of . . . Read More
Greenhouse effect ■■■■■■
A greenhouse effect is the process that raises the temperature of air in the lower atmosphere due to . . . Read More
Deposition ■■■■■■
Deposition: A deposition is the processes by which chemical constituents move from the atmosphere to . . . Read More
Precipitation ■■■■■■
A precipitation is Water in the form of rain, sleet, or snow (wet deposition). -Other /More definition: . . . Read More