Infrared Radiation

Some articles on radiation, infrared radiation, infrared:

Aery - Optical Properties - Emission
... Emission is the opposite of absorption, it is when an object emits radiation ... Objects tend to emit amounts and wavelengths of radiation depending on their "black body" emission curves, therefore hotter objects tend to emit more ... Colder objects emit less radiation, with longer wavelengths ...
Thermography - Emissivity
... is a term representing a material's ability to emit thermal radiation ... A black body is a theoretical object which will radiate infrared radiation at its contact temperature ... If a thermocouple on a black body radiator reads 50 °C, the radiation the black body will give up will also be 50 °C ...
Heat Therapy - Application
... Infrared radiation Infrared radiation is a convenient system to heat parts of our body ... It has the advantage over direct contact in that radiation can heat directly the area where the blood capillaries and neuron terminals are ... Infrared (IR for short) is the part of the electromagnetic radiation spectrum comprised between 0.78 μm and 1 mm wavelength ...
Frank J. Low - Infrared Astronomy
... measure the radiant energy coming from stars as infrared radiation, waves that occupy a portion of the electromagnetic spectrum whose wavelength is longer than for ... Astronomers had been trying to find measures to detect infrared radiation for years, and Low went to the National Radio Astronomy Observatory in Green Bank, West ... However, infrared waves are absorbed by molecules such as water vapor in the atmosphere ...
Infrared
... Infrared (IR) light is electromagnetic radiation with longer wavelengths than those of visible light, extending from the nominal red edge of the visible ... range of approximately 1 to 400 THz, and includes most of the thermal radiation emitted by objects near room temperature ... Infrared light is emitted or absorbed by molecules when they change their rotational-vibrational movements ...

Famous quotes containing the word radiation:

    There are no accidents, only nature throwing her weight around. Even the bomb merely releases energy that nature has put there. Nuclear war would be just a spark in the grandeur of space. Nor can radiation “alter” nature: she will absorb it all. After the bomb, nature will pick up the cards we have spilled, shuffle them, and begin her game again.
    Camille Paglia (b. 1947)