( Note: Because of light leakage from one ultraviolet source to another, the lights are switched by a commutator-like assembly rotated by a synchronous motor.

Because CCD imagers are linear, image processing may be used to subtract away the effects of light pollution, which has increased the popularity of astrophotography in urban areas.

Because the speed of EM waves predicted by the wave equation coincided with the measured speed of light, Maxwell concluded that light itself is an EM wave.

Because hemoglobin is a darker red when it is not bound to oxygen ( deoxyhemoglobin ), as opposed to the rich red color that it has when bound to oxygen ( oxyhemoglobin ), when seen through the skin it has an increased tendency to reflect blue light back to the eye.

Because of its relative nuclear instability, lithium is less common in the solar system than 25 of the first 32 chemical elements even though the nuclei are very light in atomic weight.

Because of the metallic gold's bright color, the gold jerseys were considered the " light " jersey in the game, so the Vikings wore their purple home jerseys as the " dark " colored team.

Because light is an electromagnetic wave, other forms of electromagnetic radiation such as X-rays, microwaves, and radio waves exhibit similar properties.

Because open clusters tend to be dispersed before most of their stars reach the end of their lives, the light from them tends to be dominated by the young, hot blue stars.

Because of the great distances to the farthest quasars and the finite velocity of light, we see them and their surrounding space as they existed in the very early universe.

Because the light of the flash occurs too fast for the pupil to close, much of the very bright light from the flash passes into the eye through the pupil, reflects off the fundus at the back of the eyeball and out through the pupil.

Because this interaction takes place on atomic electrons it occurs with the same rate in both the heavy and light water.

Because it retains its strength at high temperatures and has a high melting point, elemental tungsten is used in many high-temperature applications, such as light bulb, cathode-ray tube, and vacuum tube filaments, heating elements, and rocket engine nozzles.

Because a tachyon always moves faster than light, we cannot see it approaching.

Because the object arrives before the light, the observer sees nothing until the sphere starts to pass the observer, after which the image-as-seen-by-the-observer splits into two — one of the arriving sphere ( to the right ) and one of the departing sphere ( to the left ).

Because the group velocity for such a field is superluminal, naively it appears that its excitations propagate faster than light.

Because the patterned portion of the page is thinner, it transmits more light through and therefore has a lighter appearance than the surrounding paper.

Because of the techniques used in its creation, short mead shares some qualities found in cider ( or even light ale ): primarily that it is effervescent, and often has a cidery taste.

Because relativity treats space and time as a whole, a relativistic generalization of this equation requires that space and time derivatives must enter symmetrically, as they do in the Maxwell equations that govern the behavior of light — the equations must be differentially of the same order in space and time.

Because they convert electricity into laser light with much higher efficiency, diode lasers also run cooler, which in turn allows them to be operated at much higher frequencies.

Because parts of the core closer to the fiber axis have a higher refractive index than the parts near the cladding, light rays follow sinusoidal paths down the fiber.

Because the permittivity is anisotropic, polarized light of different orientations will travel at different speeds.

Because the MO activity is usually very small, normally less than 1 °, in conventional systems, the monochromator produces quasi-monochromatic light in a narrow wavelength window since the amplitude of modulation is wavelength dependent.

Because of the longer measures, they are longer than the reel and the light jig, with the same number of bars to the music.

Because of a missile's ballistic trajectory, the location of a fixed target must be known quite accurately.

Because of their high reactivity, they must be stored under oil in sealed glass ampoules to prevent reaction with air.

Because of the seemingly highly symbolic and even cryptic language of this one New Testament passage, some Christian scholars conclude that Mount Armageddon must be an idealized location.

Because Bessel's equation becomes Hermitian ( self-adjoint ) if it is divided by x, the solutions must satisfy an orthogonality relationship for appropriate boundary conditions.

Because water is incompressible and must remain within the confines of the bucket, this outward movement increases the depth of water at the larger radius, increasing the height of the surface at larger radius, and lowering it at smaller radius.

Because society needs people to do computing well, we must think of computing not only as a profession but also as a discipline.

Because the number of days in the tropical year is not a whole number, a solar calendar must have a different number of days in different years.

Because the islands cannot produce enough goods to support the population, about 90 % of their food and consumer goods must be imported.

Because acids were thought at the time to necessarily contain oxygen, a number of chemists, including Claude Berthollet, suggested that Scheele's dephlogisticated muriatic acid air must be a combination of oxygen and the yet undiscovered element, and Scheele named the supposed new element within this oxide as muriaticum.

Because the functions f ( g ( x )) and x are equal, their derivatives must be equal.

Because the poor people are upset by this, from now on, Musuluman Huihui and Zhuhu Huihui, no matter who kills animal will eat and must cease slaughtering sheep themselves, and cease the rite of circumcision.

Because of their physical similarity to humans a replicant must be detected by its lack of emotional responses and empathy to questions posed in a Voight-Kampff test.

Because only a fraction of the cells in a tumor die with each treatment ( fractional kill ), repeated doses must be administered to continue to reduce the size of the tumor.

Because compressed data must be decompressed to be used, this extra processing imposes computational or other costs through decompression, this situation is far from being a free lunch.

Because the DHCP protocol must work correctly even before DHCP clients have been configured, the DHCP server and DHCP client must be connected to the same network link.

Because DOM supports navigation in any direction ( e. g., parent and previous sibling ) and allows for arbitrary modifications, an implementation must at least buffer the document that has been read so far ( or some parsed form of it ).

Because of this a quadratic equation must contain the term, which is known as the quadratic term.

Because a phocid mother's feeding grounds are often hundreds of kilometers from the breeding site, she must fast while lactating.

Because the territory of a particular country must be the same color, four colors may not be sufficient.

Because of the strong empirical support for special relativity, any modifications to it must necessarily be quite subtle and difficult to measure.

Because of this necessity to have relations with other rational beings in order to achieve consciousness, Fichte writes that there must be a ' relation of right ,' in which there is a mutual recognition of rationality by both parties.

Because Sections 3 ( c ) 1 and 3 ( c ) 7 of the Investment Company Act of 1940 prohibit hedge funds from making public offerings, funds must sell their securities in accordance with the private offering rules under the Securities Act of 1933.

Because communication devices using the ISM bands must tolerate any interference from ISM equipment, unlicensed operations are typically permitted to use these bands, since unlicensed operation typically needs to be tolerant of interference from other devices anyway.

Because of the " Single Market " of the EC, any food – even if irradiated – must be allowed to be marketed in any other Member State even if a general ban of food irradiation prevails, under the condition that the food has been irradiated legally in the state of origin.