with it i mean. friends which is one of the major or are properties of concrete very very much compared with not concrete today. it's a discovery that can be useful to many parts of africa where he's grown in huge quantities the peel is normally a waste product and so readily available that makes it a cheap alternative to expensive cement and with the cement industry accounting for around 8 percent of global c o 2 emissions because software can help african builders to build greener. now japan is a country at the forefront of robotics technology and the robotics specialist at the center of a campaign that would have us consider robots our friends that some of their efforts to find in technology that blurs the line between man and machine. forget clunky automatons doing basic tasks and listen to erica here future robots talk to