What did the romans discover as they experimented with different shapes of clear glass lenses

Lenses could make an object be larger.

Explanation:

In this exercise you have to say what did the Romans discover as they experimented with different shapes of clear glass lenses. And the answer is that the Romans discovered that lenses thick in the middle and thin on the side makes an object larger.

Romans discovered that when the lens with thin edges and thick center is placed over the objects, the object becomes magnified. Thus Romans discovered magnification as they experimented with lenses.

Explanation:

During the 1st century AD (year 100), glass had been invented and the Romans were looking through the glass and testing it. They experimented with different shapes of clear glass and one of their samples was thick in the middle and thin on the edges. They discovered that if you held one of these "lenses" over an object, the object would look larger.