Last week we read a story about Tomotaka Takahashi. He read a manga about Astro Boy. Astro Boy is robot that like a person. He wanted to made a robot just like him. And he do. He invented three robots. The first robot can climb the cliff with the rope. the second robot can ride its bike. the last robot can swin. But the robot will break in water so Tomcotaka Takahashi made it waterproof. So it can swim. He is clever.