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Reuters TechnologyFeb 20, 2019
Samsung announces folding phone with 5G at nearly $2,000
Samsung Electronics Co Ltd on Wednesday unveiled a nearly $2,000 folding smartphone in a bid to top the technology of Apple Inc and Chinese rivals and reignite consumer interest in a massive consumer electronics category that had its worst sales ever last year.

ComputerWorldFeb 15, 2019
Wireless charging from A to Z: What you need to know
The term wireless charging has been around since... well, Nikola Tesla attempted to demonstrate it in 1901. For nearly a century after, however, the technology was without many practical uses, except, perhaps, for a few electric toothbrush models.

Over the past decade, wireless charging matured through the formation of various standards groups such as the Wireless Power Consortium, and through mainstream adoption by mobile device makers, such as Samsung in 2014, and finally, Apple in 2017.

To date, wireless charging has consisted of direct-contact charging pads using tightly-coupled induction technology; that combo creates an electromagnetic field between  two copper coils. Induction charging, while widely adopted because of Qi and other specifications, greatly limits the placement of a smartphone or other device on a charging pad. Nevertheless, inductive charging has become the de facto industry standard.

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