Researching light levels at dusk. Scientist holding a light meter in order to measure twilight light levels. This research is being carried out to determine why human vision is most inefficient at these light levels and how to make it safer to drive at this time. The research results could be used to improve road lights,for example | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Brookes, Andrew / National Physical Laboratory |
Bildgröße: | 4020 px × 4068 px |
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