So experiments with electrons add confirmatory evidence to the view of Dirac that electrons, protons, neutrons, and even larger entities that are ordinarily called particles nevertheless have their own wave nature and even their own specific frequencies.

Inductors in conjunction with capacitors and other components form tuned circuits which can emphasize or filter out specific signal frequencies.

Infrared spectroscopy exploits the fact that molecules absorb specific frequencies that are characteristic of their structure.

In radio communications, cable TV systems or the public switched telephone network for instance, electrical signals can only be transferred over a limited passband frequency spectrum, with specific ( non-zero ) lower and upper cutoff frequencies.

By comparing the spectra of stars such as Sirius to the Sun, they found differences in the strength and number of their absorption lines — the dark lines in a stellar spectra due to the absorption of specific frequencies by the atmosphere.

The early 3G handsets and modems were specific to the frequencies required in their country, which meant they could only roam to other countries on the same 3G frequency ( though they can fall back to the older GSM standard ).

Even if the series resistances at the spurious resonances appear higher than the one at wanted frequency a rapid change in the main mode series resistance can occur at specific temperatures when the two frequencies are coincidental.

# The interchanging of the frequencies of carrier channels to accomplish specific purposes, such as to prevent feedback and oscillation, to reduce crosstalk, and to correct for a high frequency response slope in the transmission line.

Thus, sensitive detection of specific optical frequencies necessitates optical heterodyne detection, in which two different ( close-by ) wavelengths of light illuminate the detector so that the oscillating electrical output corresponds to the difference between their frequencies.

Resonant systems can be used to generate vibrations of a specific frequency ( e. g. musical instruments ), or pick out specific frequencies from a complex vibration containing many frequencies ( e. g. filters ).

The United States National Aeronautics and Space Administration's ( NASA ) MODerate resolution Imaging Spectroradiometer ( MODIS ) also gives information on the cirrus cloud cover by measuring reflected infrared radiation of various specific frequencies during the day.

Abrams came up with new and even more impressive gadgets, the " Oscilloclast " and the " Radioclast ", which came with tables of frequencies that were designed to " attack " specific diseases.

These mutations reach significant frequencies in specific populations.

In 1977, the ITU adopted an international BSS Plan under which each country was allocated specific frequencies at specific orbital locations for domestic service.

Different frequencies experience different combinations of these phenomena in the Earth's atmosphere, making certain radio bands more useful for specific purposes than others.

Binaural beats can be used to induce specific brainwave frequencies, notably those predominant in various mind awake / body asleep states.

# A specific radio frequency, pair or band of frequencies, usually named with a letter, number, or codeword, and often allocated by international agreement. Examples:

From a metaphysical viewpoint, as the mounts begin to express the ideal characteristics for which they stand — for example, the objective perception of Luna, the unconditional love of Venus, the calmly active energy of Mars — they consequently begin to radiate at their specific light frequencies in the color spectrum.

The keyboard was then used to place the desired call, using touch tone frequencies specific for telephone operators.

Although the initial step excites to a broad range of intermediate states, the precision inherent in the optical excitation process means that the laser light only interacts with a specific subset of atoms in a particular state, exciting to the chosen final state.

On this basis, many early papers in microwave chemistry postulated the possibility of exciting specific molecules, or functional groups within molecules.

Once irradiated the sample is left for a specific decay period then placed into a detector, which will measure the nuclear decay according to either the emitted particles, or more commonly the emitted gamma rays.

The particle horizon differs from the cosmic event horizon, in that the particle horizon represents the largest comoving distance from which light could have reached the observer by a specific time, while the event horizon is the largest comoving distance from which light emitted now can ever reach the observer in the future.

The important difference between a CCD reader and a pen or laser scanner is that the CCD reader is measuring emitted ambient light from the bar code whereas pen or laser scanners are measuring reflected light of a specific frequency originating from the scanner itself.

If the emitted light is of a specific visible wavelength it may be called colorimetry, or it may involve specific wavelength of light e. g. by use of laser and emission of fluorescent signals of another specific wavelength which is detected via very specific wavelength optical filters.

The light that is not reflected by the dichroic mirror and which has a wavelength different from that emitted and impinges on it goes through an interference filter ( F2 ) which can be adjusted to a specific wavelength, thus discriminating between different fluorophores, to ultimately impinge on a photomultiplier tube ( D3 ), this is the Side FLuorescence detector ( SFL )

Janus, an Ancient scientist, also built a device called the Attero device, which emitted a specific frequency of subspace distortion, causing Wraith ships to explode when attempting to enter hyper-space.

The light emitted by the photophore is believed to be of a specific wavelength, possibly both preventing miscommunication and the attraction of predators.

The efficiency was much higher than incandescent lamps but the emitted light was of a bluish-green unpleasant color, which limited its practical use to specific professional areas, like photography where the color was not an issue at a time where films were black and white.

The specific epithet, foetida, means " stinking " in Latin and refers to the strong aroma emitted by damaged foliage.

Candlepower ( abbreviated as cp ) is a now-obsolete unit which was used to express levels of light intensity in terms of the light emitted by a candle of specific size and constituents.

The molecules are driven strongly between distinguishable molecular states at each specific location, so that finally light can be emitted at only a small fraction of space, hence an increased resolution.

A sex pheromone emitted from males is capable of luring females long distances to very specific locations.

DNA sequencers can be considered optical instruments as they analyse the color and intensity of the light emitted by a fluorochrome attached to a specific nucleotide of a DNA strand.

This specific fluorescence was readily distinguished from the light green nonspecific fluorescence in consecutive sections stained with 1: 10 dilution of NS and Af or with Af alone.

Commonly used experimental techniques include spectroscopy, with probes such as X-rays, infrared light and inelastic neutron scattering ; study of thermal response, such as specific heat and measurement of transport via thermal and heat conduction.

Therefore, four loose families of more-efficient light transport modelling techniques have emerged: rasterization, including scanline rendering, geometrically projects objects in the scene to an image plane, without advanced optical effects ; ray casting considers the scene as observed from a specific point-of-view, calculating the observed image based only on geometry and very basic optical laws of reflection intensity, and perhaps using Monte Carlo techniques to reduce artifacts ; and ray tracing is similar to ray casting, but employs more advanced optical simulation, and usually uses Monte Carlo techniques to obtain more realistic results at a speed that is often orders of magnitude slower.

The function of the vast majority of chlorophyll ( up to several hundred molecules per photosystem ) is to absorb light and transfer that light energy by resonance energy transfer to a specific chlorophyll pair in the reaction center of the photosystems.

The drug is triggered by light of a specific wavelength.

For example, the sentence " The coat is red " has no observer, the sentence " We see the coat as red " ( where " we " indicates observers ) appears more specific in context as regards light waves and colour as determined by modern science, that is, colour results from a reaction in the human brain.

The emulsion consists of silver halide grains suspended in a gelatin colloid ; in the case of color film, there are three layers of silver halide, which are mixed with color couplers and interlayers that filter specific light spectra.

Fluorescence in the life sciences is used generally as a non-destructive way of tracking or analysis of biological molecules by means of the fluorescent emission at a specific frequency where there is no background from the excitation light, as relatively few cellular components are naturally fluorescent ( called intrinsic or autofluorescence ).

They are usually light in color and have specific gravities less than 3.

Without specific recourse to any specific representation of this deity Murray speculates that the head coverings common in inquisition-derived descriptions of the devil ' may throw light on one of the possible origins of the cult '.

And again, this gradual process continued as individuals having a slightly shrunken aperture of the eye had an advantage over those without the mutation as an aperture increases how collimated the light is at any one specific group of photoreceptors.

In contrast, Neusner views each rabbinic document as an individual piece of evidence that can only shed light on the more local Judaisms of such specific document's place of origin and the specific Judaism of the author.

It is relatively soft with Mohs hardness of 2. 5 to 3 and light with a specific gravity of 1. 91.

The city employed light guards who had to follow a specific schedule to ensure the punctual lighting of the 700 lanterns.

Optical mineralogy is a specific focus of mineralogy that applies sources of light as a means to identify and classify minerals.

This can be likened to an intrinsic property of light where to get greater intensity of a specific frequency ( color ) there have to be more photons, as the photons can't become " stronger " for a specific frequency.

This even applies to quatrains that contain specific dates, such as III. 77, which predicts ' in 1727, in October, the king of Persia be captured by those of Egypt ' — a prophecy that has, as ever, been interpreted retrospectively in the light of later events, in this case as though it presaged the known peace treaty between the Ottoman Empire and Persia of that year.

The specific nuclear reaction may be the fission of heavy isotopes ( e. g. < sup > 235 </ sup > U ) or the fusion of light isotopes ( e. g. < sup > 2 </ sup > H and < sup > 3 </ sup > H ).

* Texel ( texture element ) and luxel ( lux element ) are words used to describe a pixel when it is used in specific context ( texturing and light mapping respectively )

The picture on the right is shot through a Polarizing filter ( photography ) | polarizing filter Polarizer | filtering out light that is Linear polarization | linearly polarized in a specific direction.