The world's first flying waiter
British restaurant chain YO! Sushi has launched what it says is the world’s first flying tray, a kind of airborne waiter capable of delivering food to tables faster than the more traditional leg-equipped variety.
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Essentially a modified quad-copter , the flying machine is controlled by an iPad, with a member of staff tilting the tablet to control its movement. It features two built-in cameras so the ‘pilot’ can accurately guide the food-laden tray to diners’ tables before flying it back to the kitchen.