. Easy steps in architecture and architectural drawing .. . Fig. 16. BRIDGE OF ST. ANGELO OVER THE TIBER AT ROME. Q. Was not the arch used by the ancient Greeks? A. No. They seem to have been unaoquainted withthe principle of the arch, all their doorways, windowsand spaces between columns being on the principle ofthe architrave. Q. How do you account for the absence of the archin Greek architecture and its frequent use in Roman? A. The reason is apparent when the natural featuresof the different countries are considered. In Greecethere are few or no rivers, in fact, they can hardly becalled mo
. Easy steps in architecture and architectural drawing .. . Fig. 16. BRIDGE OF ST. ANGELO OVER THE TIBER AT ROME. Q. Was not the arch used by the ancient Greeks? A. No. They seem to have been unaoquainted withthe principle of the arch, all their doorways, windowsand spaces between columns being on the principle ofthe architrave. Q. How do you account for the absence of the archin Greek architecture and its frequent use in Roman? A. The reason is apparent when the natural featuresof the different countries are considered. In Greecethere are few or no rivers, in fact, they can hardly becalled more than rivulets or streams, and the means ofcrossing them were simple, but in Italy the width ofthe rivers necessitated the use of arched bridges. EASY LESSONS IN ARCHITECTURE 31 Q. Name some of the uses of the arch. A. The arch is most frequently used where there isweight to be supported and open spaces are needed be-low, for instance, in bridges, viaducts, and the walls ofchurches, between the nave and Fig. 17. ROUND ARCH. Fig. 18. EQUILATERAL ABCH.
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