http://mentalfloss.com/uk/physics/26648/how-does-wireless-charging-work-and-is-it-actually-safe
As for safety, there’s really nothing to worry about. The average induction charger creates a field no more dangerous than radio waves, and isn’t strong enough to have any effect on the human body. If anything, plugging and unplugging a cable is more dangerous because there’s a minute chance it could fray and shock you. By contrast, induction hardware can be safely encased in thick plastic and still work. This is why electric toothbrushes have long used induction to charge: the units can remain sealed and waterproof.
If you’re wondering why induction charging hasn’t taken over the world, there are a few good reasons.
For a start, it’s not very good. Most wireless chargers operate at about 40% efficiency, where a decent cable can provide double that amount. Low efficiency means it loses energy to heat, so devices charge slower, which results in a higher power bill when compared to physical cables. It’s also more complex and therefore more expensive to manufacture.
min lader 5v og 1a
hvilket er langsommere i forhold til 2a som mit kabel fra ac normalt lader.
Men fordi jeg kan være super doven med bare ligge min phone på en plade så er jeg fan af wireless charging.
#9 swag
Den første pc jeg havde var en 386sx med 8 mb ram som jeg gamede warcraft 1 på i dos 5.