TechSo You’re Underwater: Why Do You See That Circle of Light Above You? 11 months ago01 mins Snell’s window is one of the coolest phenomena in the natural world. You’ve seen it, but do you know what causes it?Share this: Click to share on Facebook (Opens in new window) Facebook Click to share on X (Opens in new window) X Like this:Like Loading... Post navigation Previous: Economist Paul Krugman defends Harris’ price-gouging plan — but ‘Shark Tank’ star Kevin O’Leary calls it a ‘horror film’Next: Lynch family ‘devastated’ and being ‘comforted by friends’ after deadly superyacht sinking