Nokia smäller till med buller och med bong. Vad sägs om att din telefon i framtiden aldrig behöver laddas? utan ist laddas automagiskt utomhus med hjälp av den ström som redan finns i luften.
jo då. Du läste rätt.
It sounds a little sci-fi at first, but it's not: RFID tags are powered by electrical signals converted from electromagnetic waves emitted by a nearby sensor machine, which is exactly how this system is said to work. The thing is, the amount of electricity involved here is tiny, and Nokia's system won't even have a base station—it'll draw from ambient electromagnetic waves, meaning Wi-Fi, cell towers and TV antennae. Nokia hopes to harvest about 50 milliwatts—not quite enough to sustain a phone, but enough to mitigate drain, and slowly charge a handset that's been switched off.
Helt galet.
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