Imagine a world where all you had to do to receive a free cup of delicious, steaming hot.This is a coffee vending machine at the O.R. Tambo International Airport in Johannesburg. It was created for a marketing campaign by Dutch coffee company Douwe Egberts and South African ad agency Direct. The machine contains a camera and facial recognition software that allows it to detect when a person is yawning and reward them with a hot cup of coffee.
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