Labels:ball | book | box | person | poster | press OCR: CIVIL ENGINEERING Leonardo's patron in Florence, PEDOMETER his Cesare archi litect Borgia, and appointed engineer- him -in-chief as and decreed that every engineer must conf fer with Leonardo and follow his advice his device measures how far someone walks. As the wheels rotate they turn horizontal disk with holes in it With each full turn of the disk, marble drops into a box below. By counting the number of marbl es, the walked. pedestrian Such a for can device survevors determine would be a the useful distance tool he CIVIL ENGINEERING "Mechanical science is most noble and usefu aboveall others forby means of it all animated bodies in motion perform their operations. 1996 SoftKey Multimedia Inc. subsidiary of SoftKey International Inc architect confer surveyors lothers meansofit 9661 subs ...
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