Wireless technology: it is already possible to send electricity without wires. Can devices be powered using ambient radiation from existing broadcasts?

无线技术：无线输电已是可能。可以利用现有广播的环境辐射为设备供电么？

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You may have seen someone using a Bluetooth headphone adapter to interact with a mobile phone without wires, or perhaps you are a living testament to the phenomenon yourself.

您可能见过某人使用蓝牙耳麦适配器与移动电话进行无线交互，或者您本身就就使用过这样的技术。

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Even our furniture might some day be able to give our phones some juice: IKEA recently said it's creating a line of lamps, desks and tables that will charge phones and tablets, without wires.

也许哪天连家具都会给我们的手机一点甜头尝尝：宜家最近称，正在创制一系列台灯、书桌和台子，将来可以不用电线就给手机和平板电脑充电。

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These implantable sensors have this in common: they self-contain what is needed to transmit information from inside your body without batteries and without wires.

FORBES: Ingestible, Implantable, or Intimate contact; How Will You Take Your Micro-scale Body Sensors

Using off-the-shelf gear, he has the whole town wired without wires.

FORBES: Digital Spin

And of course it can connect to a Smartphone without wires.

BBC: NEWS | Programmes | Click | Click Essentials: Bluetooth