In the late 19th century, none other than Nikola Tesla, to whom we are indebted for modern systems that use electrical energy via alternating current, dreamt about a wireless, free energy source. Even though two centuries had to elapse before this need became palpable, Tesla’s vision has been shared by thousands of engineers throughout human history. Now, we are finally on the verge of his dream coming true, a reality which could herald a revolution for another major technological advance of our time: the Internet of Things.
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