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A 5G sign is shown on screen during a keynote address by Qualcomm Inc. CEO Steve Mollenkopf at CES 2017 in Las Vegas. In the U.S., 4G is still the reigning king of cellphone communications standards. But providers are now rolling out long anticipated 5G infrastructure across America and around the world. With 5G, end users like you should see crazy fast data transfer speeds that allow for all sorts of amazing smartphone magic. 5G is the fifth generation (thus, the "G") of mobile wireless systems, a way for devices, both mobile and stationary, to send and receive data without being plugged into a wall in your home or at the office. Typically, a new generation is named (sometimes retroactively) when it denotes a significant leap in wireless mobile technologies. 5G might enable driverless cars, delivery drones, and may even replace the WiFi in your home and office. Keep in mind that 5G isn't yet available everywhere - in fact, it's still pretty rare around the world. In fact, the sharp vertices and ridges that form when a sheet crumples are localized regions of stretching in the sheet, which are energetically unfavorable. Thin sheets which crumple prefer to bend rather than stretch, an observation that we can make readily with a sheet of paper by trying to bend or stretch it with our hands. In terms of energy, this means that bending costs far less energy than stretching. When a sheet is confined so that it can no longer stay flat, it will start to bend in order to conform to the changing volume. But after a certain point, it becomes impossible to fit the sheet into a small volume through bending alone. For example, as Rycroft notes, it's not clear whether different types of crumpling - using a cylindrical piston, for example, rather than your hand - results in a different type of crease pattern. In addition, researchers want to learn more about the actual mechanics of how creases form, and to be able to take measurements during the process, rather than just examining the end result. As Andrejevic explains, earlier research on crumpling actually shows that the more a sheet is crumpled, the more it resists further compression, so that increasingly more force is required to compress it. tigre de tasmania

















































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