What is in this image? Describe it as if you were explaining it to someone from the 15th century.

In this curious tableau, imagine a gathering of alchemists and scholars in a chamber crafted with magical smooth walls that reveal the night sky filled with stars, underscoring their place in the realm of the heavens. These figures, donned in garments akin to robes, possess heads that are smooth and round like polished stones, with great, expressive eyes, devoid of hair and whispers alike.Presiding over a long table, one of these scholars holds an orb filled with grains, perhaps a rare spice or a potion ingredient, extending it to a wool-clad lamb that stands, quite remarkably, upright as if graced by some spell of balance and reason. This lamb, seeming almost human in its posture, peers cleverly at another figure, who with a measuring rod, gauges the space between creatures not herding the lamb but rather engrossed in learned discussion or measurement.Other peculiar items populate this scene a tethered sphere that suggests a miniature celestial body, a box of various trinkets, and writings that capture the essence of their studies or records. It is a composition that evokes a sense of wonder and investigations into the mysteries of the universe, perhaps seeking answers beyond the earthbound constraints, much like the spirits of inquiry that animate your contemporary scholars and philosophers.