Infrared Light

Some articles on infrared, light, infrared light:

Hemoencephalography - Overview - Near Infrared (NIR)
... Hershel Toomim, near infrared hemoencephalography measures changes in the local oxygenation level of the blood ... red (660 nm) and near infra-red (850 nm) light on a specified area of the brain, usually through the forehead ... the skull is largely translucent to these wavelengths of light, blood is not ...
Full-spectrum Photography - Basics
... photographic films can be made to record non-visible ultraviolet (UV) and infrared (IR) radiation ... For example, most photographic lenses are made of glass and will filter out most ultraviolet light ... Infrared films may be shot in standard cameras using an infrared pass filters, although focus must compensate for the infrared focal point ...
Infrared Astronomy
... Infrared astronomy is the branch of astronomy and astrophysics that studies astronomical objects visible in infrared (IR) radiation ... The wavelength of infrared light ranges from 0.75 to 300 micrometers ... Infrared falls in between visible radiation, which ranges from 380 to 750 nanometers, and submillimeter waves ...
Photometer - Infrared Light Transmission Photometry
... Spectrophotometry in infrared light is mainly used to study structure of substances, as given groups give absorption at defined wavelengths ... Measurement in aqueous solution is generally not possible, as water absorbs infrared light strongly in some wavelength ranges ... Therefore, infrared spectroscopy is either performed in the gaseous phase (for volatile substances) or with the substances pressed into tablets together with salts that are ...
Calorescence
... is a word for when matter absorbs infrared radiant energy and emits visible radiant energy in its place ... amounts of radiant heat and very little visible light when burning, and if a piece of metal is placed into such a flame, the metal will become bright red-hot—which is to say the metal absorbs ... was defined complementarily as absorption in the infrared followed by emission in the visible ...

Famous quotes containing the word light:

    And I that have not your faith, how shall I know
    That in the blinding light beyond the grave
    We’ll find so good a thing as that we have lost?
    William Butler Yeats (1865–1939)