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There they are reflected, and because of the Doppler effect the part of the surface that is moving towards the observer (because of the asteroid's rotation) shortens the wavelength of the reflected waves, whilst the other part which is turning away from the observer lengthens the reflected wavelength.
It was named (following a suggestion from Robert H. McNaught) after Joseph Priestley, as co-discoverer of the element oxygen, because green emission in the aurora (astronomy), due to atomic oxygen, occurs at a wavelength of 5577 angstroms (557.7 nanometers).
These structures exhibited strong yellow-green intrinsic fluorescence when exposed to visible light with a wavelength of 500 nm (blue-green).
The idealization of the echolocation of microbats can be summarized as follows: Each virtual bat flies randomly with a velocity at position (solution) with a varying frequency or wavelength and loudness .
2012: Osamu Kumagai, Sony Corp., “Multi-Wavelength Laser Diode for Backward Compatibility of Three Generations’ Optical Disc Systems”
Because the depth of the pits is approximately one-quarter to one-sixth of the wavelength of the laser light used to read the disc, the reflected beam's phase is shifted in relation to the incoming beam, causing destructive interference and reducing the reflected beam's intensity.
During the total solar eclipse of 7 August 1869, a green emission line of wavelength 530.3 nm was independently observed by Charles Augustus Young (1834–1908) and William Harkness (1837–1903) in the coronal spectrum.
dBq dB(quarterwave), the gain of an antenna compared to a quarter wavelength whip.
The reflectivity (the percentage of incident energy which is reflected from a surface) for light of wavelength 540 nm varies between 29.6 and 30.2, and is slightly dependent on the direction of the incident light, that is to say, the mineral is weakly anisotropic.
Edpnet has its own fully redundant transcontinental fiber network based on the latest DWDM technology.
The equipment also has the ability to structure each wavelength into separate multiple 1 Gbit/s channels for the routers that run the production IP network as well as having the capability to provide dedicated point to point links at speeds up to 10 Gbit/s either within EMMAN or for linking to the outside world via the Janet Lightpath service.
Narrative cinema is usually contrasted to films that present information, such as a nature documentary, as well as to some experimental films (works such as Wavelength by Michael Snow, Man with a Movie Camera by Dziga Vertov, or films by Chantal Akerman).
In 1914, a year before he was killed in action at Gallipoli, the English physicist Henry Moseley found a relationship between the X-ray wavelength of an element and its atomic number.
The company provides rapid delivery of data transport services including SONET/SDH, Wavelength-division multiplexing and Ethernet as well as IP connectivity, dark fiber and carrier-neutral colocation.
Although their mechanisms are different, modelocking lasers and Lyot-filter lasers both produce a comb of multiple wavelengths which can be placed on the ITU grid for Dense Wave Division Multiplexing (DWDM) or used to give each suburban home its own return-signal laser wavelength in a passive optical network (PON) used to provide FTTH (Fiber To The Home).
Students from grade 5 through college sophomore level work with THEMIS scientists at ASU’s Mars Space Flight Facility to take images of sites on Mars using the visible wavelength camera on the Mars Odyssey spacecraft.
For sufficiently small M, the reduced Compton wavelength (, where ħ is Reduced planck constant) exceeds half the Schwarzschild radius, and no black hole description exists.
Monochromatic Wavelength Dispersive X-Ray Fluorescence (MWD XRF) is an enhanced version of conventional Wavelength-dispersive X-ray spectroscopy (WDXRF) elemental analysis.
Pound–Drever–Hall technique, a widely used and powerful approach for stabilizing the frequency (or wavelength) of light emitted by a laser
The P700 reaction center is composed of modified chlorophyll a that best absorbs light at a wavelength of 700nm, with higher wavelengths causing bleaching.
Thermal infrared (IR) sensors record a channel around 11 micron wavelength and primarily give information about cloud tops.
In 1892−93 the Michelson interferometer was used to determine the length of the metre in terms of the wavelength of the red line of cadmium.
Radiometry on measurement of electromagnetic radiation of any wavelength
The principle of operation behind RASS is as follows: Bragg scattering occurs when acoustic energy (i.e., sound) is transmitted into the vertical beam of a radar such that the wavelength of the acoustic signal matches the half-wavelength of the radar.
The term "ultraviolet catastrophe" was first used in 1911 by Paul Ehrenfest, although the concept goes back to 1900 with the first derivation of the dependence of the Rayleigh–Jeans law; the word "ultraviolet" refers to the fact that the problem appears in the short wavelength region of the electromagnetic spectrum.
This means that one and the same visual receptor cell can be excited by different combinations of wavelength and intensity, so that the brain can not know the colour of that point of the retinal picture.
Wien approximation, an equation used to describe the short-wavelength (high frequency) spectrum of thermal radiation
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Wien's displacement law, an equation that describes the relationship between the temperature of an object and the peak wavelength or frequency of the emitted light
Because they operate in the electromagnetic near field, receiving devices must be no more than about a quarter wavelength from the transmitter (which is a few meters at the frequency used by the example system).
Woodward's rules, named after Robert Burns Woodward and also known as Woodward–Fieser rules (for Louis Fieser) are several sets of empirically derived rules which attempt to predict the wavelength of the absorption maximum (λmax) in an ultraviolet–visible spectrum of a given compound.