Show the shadow of it la Is hard to lo believe that it ft shadow to la probably the origin of all astronomical geometrical and geographical science the first man who fixed ills his stall staff perpendicularly in tho the ground and measured its shadow was waa the earli earliest ost computer of time and tho the arab of today who plants hla his spear in the sand lind marks whole tho the shadow falls Is ills his direct descendant it Is from the shadow of a gnomon that tho the early egyptians told the length of the year it Is from the shadow of 0 a gnomon that the inhabitants of upper egypt still measure the hours of work for a water wheel in this case the gnomon la Is a stalk supported on forked uprights and points north and south east and west ore are pegs lit in tho the ground evenly marking tile the space of earth between sunrise and sl sunset inset in a land of if constant 11 sunshine ull a shadow was the primitive ve chronometer it was also the primitive primitivo prim foot rule |