"Phosphorescent Harvest" is a term that refers to the process of collecting and utilizing phosphorescent materials, which are substances that can absorb light and then re-emit it over time. This phenomenon is often seen in certain minerals and organic compounds, making them useful in various applications, including art, safety signage, and novelty items. The process typically involves harvesting materials that exhibit phosphorescence, such as zinc sulfide or strontium aluminate. These materials can glow in the dark after being exposed to light, providing a unique visual effect. Their applications extend to fields like photoluminescence research and environmental safety, where they enhance visibility in low-light conditions.