Since the Universe has a finite age, and light travels at a finite speed, there may be events in the past whose light has not had time to reach us.

Since oxygenated and deoxygenated blood reflects light by different amounts, we can study which areas are more active ( i. e., those that have more oxygenated blood ).

Since the development of armored warfare the distinction between light and heavy armor has persisted basically along the same lines.

Since light is an oscillation it is not affected by travelling through static electric or magnetic fields in a linear medium such as a vacuum.

Since the visible spectrum of light is composed of wavelengths between 390 and 750 nanometers ( nm ), if the droplet sizes in the emulsion are below about 100 nm, the light can penetrate through the emulsion without being scattered.

Since this implies that one particle is communicating with the other instantaneously across space, i. e. faster than light, this is the " paradox ".

Since frequency and wavelength are inversely proportional, this is equivalent to saying that the frequency of the light is reduced towards the red part of the light spectrum, giving this phenomenon the name redshift.

Since EtBr stained DNA is not visible in natural light, scientists mix DNA with negatively charged loading buffers before adding the mixture to the gel.

Since the 1980s, various experiments have verified that it is possible for the group velocity of laser light pulses sent through specially prepared materials to significantly exceed the speed of light in vacuum.

Since the working life of a hearse is generally one of light duty and short, sedate drives, hearses remain serviceable for a long time ; hearses 30 years old or more may still be in service, although some funeral homes replace them at least once a decade.

Since absorption is cumulative, the color effect intensifies with increasing thickness or if internal reflections cause the light to take a longer path through the ice.

Since Brighid represented the light half of the year, and the power that will bring people from the dark season of winter into spring, her presence was very important at this time of year.

Since the early 1980s, a global dark-sky movement has emerged, with concerned people campaigning to reduce the amount of light pollution.

Since not everyone is irritated by the same lighting sources, it is common for one person's light " pollution " to be light that is desirable for another.

Since relativity postulates that the speed of light is the same for all observers, the Lorentz transformation must preserve the spacetime interval between any two events in Minkowski space.

Since the early 1990s, a light has been fixed to it about one-third of the way up.

Since 1983, it has been defined as " the length of the path travelled by light in vacuum during a time interval of of a second.

Since fluorescence emission differs in wavelength ( color ) from the excitation light, an ideal fluorescent image shows only the structure of interest that was labeled with the fluorescent dye.

Since any fluorescence image is made up of a large number of such small fluorescent light sources, the image is said to be " convolved by the point spread function ".

Since he was the light of the world, where was this light, they asked, when he was in the womb of the Virgin?

Since the Supreme Court's decision of that year this is more doubtful ; ;

( Since the time-span of the nation-state coincides roughly with the separate existence of the United States as an independent entity, it is perhaps natural for Americans to think of the nation as representative of the highest form of order, something permanent and unchanging.

Since it is not far from Viareggio, he will visit Puccini's house, as he never fails to do, to pay his respects to the memory of the composer of La Boheme, which he considers one of Puccini's masterpieces.

Since attack serves to stimulate interest in broadcasts, I added to my opening statement a sentence in which I claimed that German youth seemed to lack the enthusiasm which is a necessary ingredient of anger, and might be classified as uninterested and bored rather than angry.

Since the air is a continuum, the network of communication remains intact regardless of the positions or motions of the points ( the people ) in the net.

Since the hazards of poor communication are so great, p can be justified as a habitable site only on the basis of unusual productivity such as is made available by a waterfall for milling purposes, a mine, or a sugar maple camp.

Since the difficulty of drawing the net is great, we will merely discuss it.

Since a civilizational crisis involves also a crisis in private interests and in the ruling class, reaction is normally found among those who feel themselves to be among the ruling class.

Since civilizational change is the most difficult to perceive and analyze, it seldom is given adequate attention.

Since the slogans have little application to reality and are sanctimonious to boot, the applause is faint even in areas of the world where we should expect to find the greatest affection for free government.

Since more is known about Quiney than about any other acquaintance of Shakespeare in Stratford, his career may be followed to its sudden end in 1602.

Since the great flood of these dystopias has appeared only in the last twelve years, it seems fairly reasonable to assume that the chief impetus was the 1949 publication of Nineteen Eighty-Four, an assumption which is supported by the frequent echoes of such details as Room 101, along with education by conditioning from Brave New World, a book to which science-fiction writers may well have returned with new interest after reading the more powerful Orwell dystopia.

Since Laos is of no more purely military value to Moscow itself than it is to Washington, this approach might be expected to head off Mr. Khrushchev for the moment.

Since little is known about autism, and almost nothing has been written for the layman, we'd like to share one experienced mother's comments.

Since the work is done by hand, the only limitation, it is said, `` is that of human conception ''.

Since the apparatus is new, it requires experimentation and changes in technique.

Since the obvious is not always true, the Republican National Committee wisely analyzed its defeat of last autumn and finds that it occurred, as suspected, in the larger cities.

Since he has just shown who is top dog, he may not be ready to receive this highest honor in the gift of the Soviet people.

Since appeals to morality, to humanity, and to sanity have had such small effect, perhaps our last recourse is the deterrent example.

Since the goal of our international planners is a World Government, this Atlantic Community would mark a giant step in that direction for, once American economic autonomy is absorbed, a larger grouping is a question of time.

Since the 1989 coup and subsequent expulsion of South African-financed mercenaries, Comoros likewise turned away from South Africa and toward France for assistance with its security needs.

Since 2002, most of the attention in the search for the Ivory-billed Woodpecker has turned away from the Pearl River region, although several unconfirmed sightings have been reported there since February 2006, see video clips.

He was offered the occasional job, including the opportunity to direct Since You Went Away for David O. Selznick, but turned them down.

Since it was from dealing with ecclesiastical-political questions that Wycliffe turned to reformatory activities, the former have a large part in his reformatory writings.

Since then, former next-door neighbor RKO closed up shop in 1957 ; Warner Bros. ( whose old Sunset Boulevard studio was sold to Paramount in 1949 as a home for KTLA ) moved to Burbank in 1930 ; Columbia joined Warners in Burbank in 1973 then moved again to Culver City in 1989 ; and the Pickford-Fairbanks-Goldwyn-United Artists lot, after a lively history, has been turned into a post-production and music-scoring facility for Warners, known simply as " The Lot ".

Since the autumn of 1914 he had insisted that " from the standpoint of the working class and of the labouring masses from the lesser evil would be the defeat of the Tsarist Monarchy "; the war must be turned into a civil war of the proletarian soldiers against their own governments, and if a proletarian victory should emerge from this in Russia, then their duty would be to wage a revolutionary war for the liberation of the masses throughout Europe.

Since Nuada was no longer " unblemished ", he could not continue as king and was replaced by the half-Fomorian Bres, who turned out to be a tyrant.

Since the administrative reforms of 1996, the régions of Senegal, which until then were merely local administrative structures of the central state, have been turned into full-fledged political units, with democratically elected regional councils, and regional presidents.

Since the opposition ’ s constitutional route to power was blocked by the various means deployed by the PRP to protect itself, it turned to the army for support.

Since Bond had little experience as an actress, Gilbert and Sullivan cut the dialogue out of the role, except for a few lines in the last scene, which they turned into recitative.

Since a decision was expected from England, and feeling that Bligh's behaviour had been insufferable, Foveaux left Bligh under house arrest and turned his attention to improving the colony's roads, bridges and public buildings, which he felt had been badly neglected.

Since Turks felt very marginalized by German society, they turned to hip hop in order to express their concerns.

Since the islets had an " undefined internal status ", the immigrants did not benefit from the Spanish immigration laws and, under a joint operation, Spanish troops tended to the women, children, and medical needs of the immigrants, then turned them back over to Morocco.

Since the return of democracy, Argentina has also turned into strong proponent of enhanced regional stability in South America, the country revitalized its relationship with Brazil ; and during the 1990s ( after signing the Treaty of Peace and Friendship of 1984 between Chile and Argentina ) settled lingering border disputes with Chile ; discouraged military takeovers in Ecuador and Paraguay ; served with the United States, Brazil and Chile as one of the four guarantors of the Ecuador – Peru peace process.

Since the NFL does not allow its owners to hold majority control of major-league teams in other NFL cities, Kroenke turned over day-to-day control of the Nuggets and Avalanche to his son Josh toward the end of 2010, and must sell his controlling interest in both teams by 2014.

Since the company was focusing on the Epcot Center, Disney chairman Card Walker turned down the proposal.

Since a primary design specification of x86 microprocessors is that they are fully backwards compatible with software written for all x86 chips before them, the 286 chip was made to start in ' real mode ' – that is, in a mode which turned off the new memory protection features, so that it could run operating systems written for the 8086 and the 80186.

Since this is the only mention of Beyla, scholars have turned to the etymology of Beyla's name for additional information about her.

Since 1990, in the United States, physical anthropology and archaeological investigations based on the study of human remains are complicated by the Native American Graves Protection and Repatriation Act, ( NAGPRA ), which provides for the bodies of Native Americans and associated grave goods to be turned over to the recognized tribal body most legally affiliated with the remains.

Since Escobar turned professional while he was still legally a minor, his father had to sign the unbinding agreement.

Since the manuscript Dostoyevsky turned in to Katkov was lost, it is unclear what the editors had objected to in the original.

Since God did not prevent it, then God has for some reason turned away from the world, and left us to ourselves forever more.

Since Ne Win turned 92 in July 2002, when he died in December 2002 he was considered to be 93 years old.

Since ' Psychohistory ' in Asimov's sense of the word does not exist, Krugman turned to economics, which he considered the next best thing.