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Only timelike paths can be traveled by massive objects, in which case the invariant interval becomes the proper time.
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Some Related Sentences
Only and timelike
Only timelike intervals can be physically traversed by a massive object.
Only and paths
( 1 ) Only a single laser path is required rather than the two paths required by the Mach-Zehnder or Michelson designs.
Only Central has direct access to the beach, as you have to negotiate long steep sandy paths over the dunes to reach the beach from Western car park, unsuitable for prams, or wheelchairs.
Only and can
Only when that term is ended and he is a private citizen again can he be permitted the freedom and the courage to discount the dangers of his death.
Only by means of an intensive preoccupation with the detailed considerations following from any decision can he ensure attention to the practical details to be dealt with if the implications of immorality in the major decision are effectively to be checked.
Only recently, and perhaps because a television debate can so effectively dramatize President Kennedy's extraordinary mastery of detail, have the abilities on which the capacity for making distinctions depend begun to be clearly discernible at the level of politics.
Only those story tellers will remain who can `` imitate the style of the virtuous ''.
`` Only a discontinuity can end it '', Professor Morrison writes.
He thought: Only in my heart can I make the world hang together.
Only within the framework of a mature relationship characterized by honest appraisals of performance can we provide telling assistance.
Only by resorting to molding techniques can the cushion manufacturer hope to compete satisfactorily in the established cushion market.
Only public understanding and support can provide that service.
Only He can satisfy the deepest longings.
Only high frequency sounds like mating calls are heard in this way but low frequency noises can be detected through another mechanism.
Only then in fact was payment for assembly attendance, the central event of democracy ( Similarly for the period before the Persian wars, but for the very early democracy the sources are very meagre and it can be thought of as being in an embryonic state ).
Only ordained priests can administer it, and " any priest may carry the holy oil with him, so that in a case of necessity he can administer the sacrament of anointing of the sick.
Only a proper, artist-grade acrylic gesso should be used to prime canvas in preparation for painting with acrylic ( however acrylic paint can be applied to raw canvas if so desired without any negative effect or chemical reaction as would be the case with oils ).
Only open curves that have some infinite branch, can have an asymptote.
" Wertham wrote, " Only someone ignorant of the fundamentals of psychiatry and of the psychopathology of sex can fail to realize a subtle atmosphere of homoeroticism which pervades the adventures of the mature ' Batman ' and his young friend ' Robin.
Only individuals can become bankrupt ; insolvent companies go into liquidation or administration ( see administration ( insolvency )).
Only scientific investigation can show which is more likely to be correct.
Only a very small percentage or a tiny fraction of people can ever make a name for themselves as celebrities in the entertainment spheres such as ( including music, film, television, radio, theater, modelling, literature etc.
Only second degree sinoatrial blocks can be detected by use of a 12-lead EKG.
Only full-time commissioners can participate in the decision-making process for telecommunications and all commissioners are involved in broadcasting decisions.
Only the stickman or a dealer can place a service bet.
Only those context-free grammars which do not generate the empty string, can be transformed into Chomsky reduced form.
Only when actively growing can a tree or forest remove carbon over an annual or longer timeframe.
Only and be
Only the amethystine python and the anaconda must be excluded for lack or paucity of data.
Only the Federal government is likely to be able to take a long-run and nation-wide view and to pay for training to meet national skilled manpower needs.
Only a radical change in the nature of the population in the central city would be likely to destroy this preference -- and we must now turn our attention to the question of whether such a change, gloomily foreseen by so many urban diagnosticians, is actually upon us.
Only the vain and incurably sentimental among us will lose sleep simply because foreign peoples are not as impressed by our strength as they ought to be.
Only an occasional tip turned out to be a phony, and, like the police, Casey had made a point of running down all such suggestions and he did not hesitate this time.
Only the families and a dozen close friends will be present.
Only the memory of previous hurt, bewilderment and perplexity made him sure that if he did not ask B'dikkat when he, Mercer, was happy, the answer would no longer be available when he needed it.
Only the fallen angels will be left alive.
Only red abalone may be taken ; black, white, pink, and flat abalone are protected by law.
Only the Jarawa and Sentinelese still maintain a steadfast independence and refuse most attempts at contact ; their numbers are uncertain but estimated to be in the low hundreds.
Only six leaves of M survive ; however, the printed edition of Gelenius ( G ) is considered to be based on M, making it an important witness to the textual tradition of the Res Gestae.
Only about 60 % are in protected areas, suggesting that actual numbers of the lowland subspecies may only be in the low tens of thousands.
Only one " V " device may be worn on service ribbons and suspension ribbons of medals or unit award ribbons.
Only one provision appears to impose obligations on an official ; this provision establishes that a judge who reaches an incorrect decision is to be fined and removed from the bench permanently.
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