Steve Caplin is excited by Jony Ive's new venture, even though nobody yet knows what it is. He wonders how much Albert Einstein's business card will fetch. There's a face sticker that can monitor employees' tiredness, but there's a catch. Living tattoos have been developed for buildings. The UK's first flying taxi has had a real world flight over the Cotswolds. Who might want to buy a concrete coffeemaker? Loughborough University has created the world's smallest violin. Knee pain might be reduced with in-ear treatment. And you will soon be able to buy your own spaceplane – for a mere $30m.

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