German product designers Ingo Heyn and Sven Wuttig have won the BraunPrize with a concept for an ultrasonic washing machine. Clothes are cleaned at low temperatures by microwaves passing through the ...

For centuries, washing laundry has always required a "particular" cleaning agent —from ashes and silicates of the Egyptians to your mom’s choice of detergent— to go with water. But a group of young ...