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Because spacecraft only contain a finite amount of fuel and there is little chance to refill them, some alternative reaction control systems have been developed so that fuel can be conserved.
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Because and spacecraft
Because of these properties, they are often used in spacecraft.
Because of their small size, it was said that the Mercury spacecraft were worn, not ridden.
Because the spacecraft environment is by definition limited, a very small number of sets can be heavily used, lowering production costs and allowing producers to focus on character development, setting detail, or sometimes simply to keep a production in the black so it can stay on the air.
Because the solar EUV cannot be monitored from the ground, the joint NASA-ESA Solar and Heliospheric Observatory ( SOHO ) spacecraft was launched and has provide EUV images of the Sun from 1995 to the present.
Because gamma rays travel at the speed of light and the time of the pulse was recorded by several distant spacecraft as well as on Earth, the source of the gamma radiation could be calculated to an accuracy of about 2 arcseconds.
Because of this practice launcher capacity is usually quoted as separated spacecraft mass to GTO, and this number will be higher than the payload that could be delivered directly into GEO.
Because suborbital spaceplanes are designed for trajectories that do not reach orbital speed, they do not need the kinds of thermal protection orbital spacecraft required during the hypersonic phase of atmospheric reentry.
Because it uses conventional turbofan engines and not thermonuclear turbines like the later VF-1, the VF-0 is not a true spacecraft ( although it can operate for short periods of time underwater ).
Because of the small space inside the Mercury spacecraft, candidates could be no taller than 5 feet 11 inches ( 180 cm ) and weigh no more than 180 pounds ( 82 kg ).
Because all Russian and European spacecraft dock automatically there is no need to manipulate spacecraft on the Russian segment so the European arm is smaller and less powerful than Canadarm2.
Because such antennas have a very low profile, are mechanically rugged and can be shaped to conform to the curving skin of a vehicle, they are often mounted on the exterior of aircraft and spacecraft, or are incorporated into mobile radio communications devices.
Because of its elliptical orbit, the spacecraft spent part of each day in the Van Allen belts, during which time science observations suffered from higher background noise.
Because and only
Because of this, only those with truly fine equipment will be able to appreciate the exact degree of the engineers' triumph.
Because Christianity teaches not only salvation in history, but salvation by the history of Christ, such an interpretation of death would require a drastic revision of the Christian understanding of the work of Christ.
Because the urn itself is so delicate, it has been allowed to travel to Australia only twice.
Because of the first proposition, God himself is thought as invisible and only recognizable in his creation.
In fact, Fitzmyer believes that the preface of Luke should only be “ the starting point in the discussion of the aim of Luke-Acts .” Because the author ’ s intended purpose for the Book of Acts is not that straightforward, scholars have put forth four main claims to address this.
Because it is a Sacred Mystery of the Church, only Orthodox Christians may receive it.
Because the English language has 40 sounds and only 26 letters, children and beginning readers also need to learn the different sounds ( phonemes ) associated with each letter.
Because the differences between the prices are likely to be small ( and not to last very long ), this can be done profitably only with computers examining a large number of prices and automatically exercising a trade when the prices are far enough out of balance.
Because grocery stores are not permitted to carry wine or liquor, the older law essentially meant that only beer and alcoholic malt beverages could be purchased at all on Sundays.
Because of this, the United States Air Force XB-70 Valkyrie program was cancelled in the early 1960s ; the later B-1B Lancer and B-2 Spirit aircraft entered service only after protracted political and development problems.
Because Justice John Paul Stevens had recused himself, only eight Justices heard the case, and it ended in a 4 – 4 tie.
Because the FLRW metric assumes a uniform distribution of mass and energy, it applies to our Universe only on large scales — local concentrations of matter such as our galaxy are gravitationally bound and as such do not experience the large-scale expansion of space.
Because a black hole eventually achieves a stable state with only three parameters, there is no way to avoid losing information about the initial conditions: the gravitational and electric fields of a black hole give very little information about what went in.
Because the fossil record of chordates is poor, only molecular phylogenetics offers a reasonable prospect of dating their emergence.
Because society needs people to do computing well, we must think of computing not only as a profession but also as a discipline.
Because Berlin was located within the Soviet-occupied zone of Germany and the other occupying powers had previously relied on Soviet good will for access to Berlin, the only available methods of supplying the city were three limited air corridors.
Because the de facto administration is recognized only by Turkey, it has had much difficulty arranging foreign financing, and foreign firms have hesitated to invest there.
Because of the specific transport mechanisms, only limited amounts of chromium ( III ) enter the cells.
Because the volatility of a comet's material decreases as it gets further from the Sun, the comet becomes increasingly difficult to observe as a function of not only distance, but the progressive shrinking and eventual disappearance of its tail and the reflective elements it carries.
Because the earthworms grind and uniformly mix minerals in simple forms, plants need only minimal effort to obtain them.
Because each governor held equal imperium to the equivalent magistrate, they were escorted by the same number of lictors ( 12 ) and could only be vetoed by a reigning Consul or Praetor.
Because they lack this key defence, only 0. 5 % of cane toads are estimated to reach adulthood.
Because of the switch to Portland cement, by the end of the 1920s of the 15 Rosendale cement companies, only one had survived.
Because of that the vehicle with the bridge on board is only 11. 6 m long, but the over all span length is 20 m. This is an increase of about 62 % over that of the older MTU-1.
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 and contain
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 it does not contain any cocoa solids, white chocolate does not contain any theobromine, meaning it can be consumed by animals.
Because of this a quadratic equation must contain the term, which is known as the quadratic term.
Because Chatham's emeralds do not have any water and contain traces of vanadate, molybdenum and vanadium, a lithium vanadate flux process is probably involved.
Because they are shallow, these many lakes contain only slightly more water than Finland's annual rainfall.
Because very few minerals contain it in high concentration, germanium was discovered comparatively late in the history of chemistry.
Because Kahlúa is made from coffee beans, it does contain a small amount of caffeine.
Because mandrake contains deliriant hallucinogenic tropane alkaloids such as atropine, scopolamine, apoatropine, hyoscyamine and the roots sometimes contain bifurcations causing them to resemble human figures, their roots have long been used in magic rituals, today also in neopagan religions such as Wicca and Germanic revivalism religions such as Odinism.
Because a mole of molecules may contain a variety of molecular masses due to natural isotopes, the average mass is usually not identical to the mass of any single molecule.
Because they contain relatively little metal, pole-arms are cheap to make.
Because they tend to have strong flavors and are used in small quantities, spices tend to add few calories to food, even though many spices, especially those made from seeds, contain high portions of fat, protein, and carbohydrate by weight.
Because Ann Arbor and Central Campus developed simultaneously, there is no distinct boundary between the city and university, and some areas contain a mixture of private and university buildings.
Because dielectric materials usually contain minute defects, the practical dielectric strength will be a fraction of the intrinsic dielectric strength of an ideal, defect-free, material.
Because of the role played by water, metamorphic rocks generally contain many elements absent from the original rock, and lack some that originally were present.
Because these soundtrack systems appear on different parts of the film, one movie can contain all of them, allowing broad distribution without regard for the sound system installed at individual theatres.
Because the vast majority of these broadcasts contain nothing but the recitation of blocks of numbers, in various languages, with occasional bursts of music, they have become known colloquially as " Number Stations ".
Because of the lack of nuclei and organelles, mature red blood cells do not contain DNA and cannot synthesize any RNA, and consequently cannot divide and have limited repair capabilities.
Because the surface of a cantaloupe can contain harmful bacteria — in particular, Salmonella — it is always a good idea to wash and scrub a melon thoroughly before cutting and consumption.
Because more than 60 % of television shows contain violence, adolescents view approximately 10, 000 media violence acts every year.
Because of this, anti-smoking ads are now often on the DVDs of films that contain smoking.
Because his original books are rather short, these editions may contain 15 or more in each volume.
Because superoxide is toxic, nearly all organisms living in the presence of oxygen contain isoforms of the superoxide scavenging enzyme, superoxide dismutase, or SOD.
Because they contain mercury, many fluorescent lamps are classified as hazardous waste.
Because they contain rituals, Judaism and Christianity necessarily — Eliade argues — retain a sense of cyclic time:
0.785 seconds.