Opinions expressed by Entrepreneur contributors are their own. Ready for a handy office upgrade? Microsoft has introduced its Sculpt Ergonomic Keyboard, dubbed “the Manta Ray” because of its shape.

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When Bill Buxton worked at Xerox’s Palo Alto Research Center in the early 1990s, he examined the classic children’s homemade telephones: two cups connected by a taut string. He wondered why that same ...