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Show u SkyicrapciV Value The Greeks prububly were the Oral to build roofed structures of exteu ( slvc aren, for they are credited wltb the first use of wooden beams. The Itoinnns made the erection of build lugs with even grout ei area possib'.t by use of the arch und dome. The de vwlopmuit of the sloel I-beam made rouil.v high buildings possible. Qui pn.'sent-day builders have developed skyscraper construction to o degrw ivhcre valuable ground space can be ,'oniploltly utilized by the erection i u tall building of extensive floor space. Creaking of the Stairs. The creaking of the stairs at night U due lo the change of temperature, which, makes the woodwork contract or expand or some-thing, but It's terribly ter-ribly hard lo rvniember that when they crcalc Ohio Slate Journal. |