This comparative photo contrasts a salad in natural light (top) with its hidden chemical fluorescence under 365 nm ultraviolet light (bottom). The glowing blue-white haze on the seemingly empty ceramic plate exposes microscopic traces of organic residue and fats left over from previous meals. The brightest glow comes from the cottage cheese, which emits a brilliant yellow-green light due to its high riboflavin and protein content. The plant ingredients show a more subtle, tissue-specific response: green olives shift to a pale salmon hue from chlorophyll and phenols, while the red pepper’s thin cuticles light up in blue-purple tones. In contrast, the water-dense cucumber and tomato slices absorb most of the UV light and remain dark against the glowing background. College Station, Texas
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📷 Shooting data
Sat 2 May 2026 12:31:26 - Exposure: 6 sec - Aperture: F/32. - Focal length: 100 mm - ISO 100
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Album 3819: Sam Houston Forest, Texas, May 2, 2026
