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Yawn
Latest research awakens debate over why people can’t keep their mouths closed.
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Science Past from the issue of May 6, 1961
PATENTS OF THE WEEK — “Inventions for the home of tomorrow” were the theme of several inventions just patented. Two improved methods for rocking the cradle electrically have been invented. The main advantage of the “motor driven cradle” … is that it can be made inexpensively.