The laser show in a soap bubble
For the first time, researchers have created the branched flow phenomenon in visible light, previously only seen in other types of wave like sound. Using nothing but a laser and a simple soap bubble, scientists caused light to twist and fork along its path. They hope that the new set up could help shed more light on the phenomenon. Read more: Sign up for the Nature Briefing: An essential roundup of science news, opinion and analysis, free in your inbox
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