Lots has been studied and written about the socialization and human engineering that occurs early on in school for girls and its impact on their choices.

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Though the artificial Golgi Dr Linhardt and his team have designed is much bigger than a cell, it is still small by the standards of human engineering, being built on what is known as a digital-fluidics chip.

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As Tumblr approached 100 employees this year and brought on executives to lead operations in finance, engineering and human resources, Mr. Maloney's skills as a generalist manager became less relevant, people familiar with the situation said.

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The Roman Empire had made puny engineering, technological and artistic advances because it relied on copious use of human brawn, not brains.

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