Petri Dish Colony Counting Dots Late Afternoon

Crisp, high-altitude afternoon light floods the laboratory table in San Salvador de Jujuy, illuminating a petri dish resting on a cold metal surface. The agar inside holds a precise grid of black ink dots, each marking a bacterial colony for scientific counting. Condensation beads cluster on the adjacent metal housing, reflecting the clear wet-season sky visible through a nearby window. The agar surface shows a subtle, translucent sheen where the light strikes it, while the black dots create sharp, geometric contrast against the pale yellow medium. A fine layer of moisture rests on the glass rim, distorting the view of the agar slightly at the edge. The metal casing holds a dull, brushed texture that absorbs the bright sunlight without glare.