Personal Electronics: a magnetic resonance system could allow contact-free recharging-for example, a cellphone battery could be boosted from anywhere in a room.
个人电子产品：磁性共振系统使无接触充电成为可能，例如，你可在房间的任何地方给手机电池充电。
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On Thursday, March 13, 2008, it seemed the acoustics in my room was closed because I could not feel energy (resonance or reverberation) when I sang.
When you play a musical note having the same pitch as a natural resonance of the room, that note will sound louder and have a longer decay time than other notes.