Doing everything "wireless" has been a long-standing dream for over a hundred years, and some of that dream is reality. I see three categories of doing things wireless:
- Communication: now fully realized, via radio, TV, Wi-Fi, and satellites; the list of ways we communicate without a physical connection is pretty long;
- Power transmission over distance, envisioned by Tesla: not here, may never be, despite some impressive demonstrations, as the laws of physics which work against it are pretty fierce (see MIT's "Toward more efficient wireless power delivery";
- Short-distance power transmission: the jury is still out, but lots is happening.
Let's explore that last one more closely, in the context of three developments:
So, is wireless charging going to be a long-term winner, a loser, or a respectable, solid, mid-range success? It will be interesting to watch the market for it develop, and how it goes. ♦