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(PhysOrg.com) -- In quantum mechanics, Bell’s inequalities serve as a test of nonclassical behavior: if something (such as a light source) violates Bell’s inequalities, then it can be considered to involve quantum behavior.

Every year, an organization called Improbable Research offers up the Ig Nobel Prize , a Nobel spoof award that it is given for science innovations "that first make people laugh, then make them think." This year, our favorite entry came from researchers at the Shiga University of Medical Science, who developed something called the wasabi alarm, a fire (or general emergency alarm) that slashes noise pollution but might make anyone nearby feel sick.