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Light reveals a surprising way to spin through empty space

So: researchers have found that carefully prepared light can develop spinning patterns as it travels through empty space, without special lenses, mirrors, or materials. The international team showed that a balanced beam can start with no spin, then develop distinct spinning regions as it moves forward. This reveals a hidden geometric feature of light and offers a fresh way to control its twists and turns. The discovery could eventually support more sensitive medical tests, faster and more secure communications, and new quantum technologies.
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