EADS-Astrium is about to launch its first SDR product, a piece of kit to be used by the military that can convert different kinds of signals, but Mr Kinsella said it was still an emerging technology.

BBC: SDR can read and understand different kinds of radio waves

The company's main product, a mushroom-growing kit, is a cardboard box that houses a plastic bag filled with coffee grounds and mushroom spawn.

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The product, Switch 8 Solar Recharging Kit, from Goal Zero, is ultra-lightweight aluminum package smaller than a roll of quarters and less tangled than all those power cables in your briefcase.

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