| http://www.w3.org/ns/prov#value | - London, UK | Posted on August 9th, 2012For a price of just one penny per unit the device, known as a rectenna, which is presented today, Friday 10 August, in IOP Publishing's journal Nanotechnology, can be placed onto objects such as price tags, logos and signage so that we can read product information on our smartphones with one simple swipe.This type of technology, which is known as near-field c
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