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All sorts of 3D-imaging technologies tend to get lumped under the label “hologram.” But there’s actually a variety of distinct technologies that can create the appearance of depth. Now, we can add another to the list: the photophoretic-trap volumetric display. The device uses one set of optical hardware to control the motion of a tiny […]
Wireless networks already have to deal with increasingly crowded waves, and that’s only going to get worse when 5G rolls around. Any boost to the signal could lead to a big jump in performance, especially when you’re using very high frequencies that are more prone to interference. But how do you provide that boost? Researchers […]
A few days after Christmas, a bright light was captured hovering over the Sheffield city center of the U.K., and a large number of viewers are now convinced that they have witnessed a UFO in Sheffield. The footage of the alleged UFO in Sheffield was captured by a CCTV camera at the University of Sheffield […]
