50.9 MB (10.6 MB compressed)
4942 x 3602 pixels
41.9 x 30.5 cm ⏐ 16.5 x 12.0 in (300dpi)
ER DEGGINGER / SCIENCE PHOTO LIBRARY ER DEGGINGER / SCIENCE PHOTO LIBRARY
Headlights in the fog, a demonstration of the tyndall effect. Light is scattered by particles of matter in its path and a beam of light becomes visible by illuminating dust particles.
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