The last step towards total freedom?
… from wires!! Through a phenomenon called “evanescent coupling“, it might be possible to recharge your portable devices without wires within a few years. Unlike electromagnetic induction, which needs a very close proximity between the charger and the device to be charged, evanescent coupling might work at a distance of up to five meters. What is left to be demonstrated (and researchers are working on a prototype), is how effective it is, the amount of current that can be transfered, and if it will spark another baseless cancer scare like we had with cell phones.
