But then you have to consider the limitations of the Chrome OS - it's great if your life is in the "Cloud" and you want an always-online machine whose main function is email, web surfing and social media, but limited if you want to use other applications.

BBC: Who'll pay for a Pixel?

Manchester scientists have developed a tiny molecular machine that mirrors the function of the ribosome, which builds the proteins in our body's cells.

BBC: Tiny molecular machine apes cellular production line

They hooked him up, right at his bedside, to a machine that took over the function of his heart and lungs.

NPR: Doctor Outlines West's Role in India's 'Brain Drain'

And while some of the latter may look like automatic military-style machine guns, they do not function in that manner.

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