In building the Parthenon, how did the architects use engineering to counter the various negative optical effects?

columns tilt slightly inward

and Doric columns swell slightly near the center  

Explanation:

solution

we know that  Parthenon is the finest example of Greek architecture

and Parthenon is design on marvel and featuring massive column that contrasting

so architects use engineering to counter some negative optical effect are as

columns tilt slightly inward

and Doric columns swell slightly near the center  

28 × 2 = 56

5 × 22 = 110

56+110=166

1492

columbus changes the shape of the world

ferdinand and isabella unite and create catholic spain

jews and moslems driven out of spain

lorenzo de medici dies

no one buying art and supporting city like before, his brother had been assassinated slightly before

florence to rome renaissance shift

east to west transition of church administration to the vatican