Optically Pure Blue-Violet Hues

Scientists at the National Institute of Water and Atmospheric Research (NIWA) say that Blue Lake in Nelson Lakes National Park might be the clearest freshwater body in the world. The NIWA scientists said the “extreme visual clarity” of Blue Lake was “perhaps only exceeded worldwide by certain ocean waters” such as those in the southeastern Pacific near Easter Island. Over six visits they found that horizontal visibility usually ranged from 70 to 80m. Aquatic optics specialist Dr Rob Davies-Colley said: “Blue Lake is a close approach to optically pure water.” Most divers considered a visual range, as in very clear seawater, of at least 40m to be “outstanding.”


Tags: Blue Lake  Freshwater  National Institute of Water and Atmospheric Research (NIWA)  Nelson Lakes National Park  NIWA  Rob Davies-Colley  Visibility Easter Island  Xinhua News  

Pagerie Kitting Out Pets in Designer Accessories

Pagerie Kitting Out Pets in Designer Accessories

Reports show that the number of pet owners in the US and UK increased after Covid-19, and that people, especially millennials without kids, are willing to spend more on pooches, shopping…