Robot maid

Mahru-Z (R), a robot developed by the Korea Institute of Science and Technology picks up a sandwich in Seoul on January 15, 2010. South Korean scientists have developed a walking robot maid which can clean a home, dump clothes in a washing machine and even heat food in a microwave. The institute took two years to develop Mahru-Z, which is 1.3 metres (4.3 feet) tall and weighs 55 kilograms (121 pounds). Photo: AFP