Loneliness of long-distance robot


Five knee-high mini-robots have set off on the world's first robot marathon, the Robo Mara Full race in Osaka, Japan.

The battery-charged machines will race 423 laps around an indoor 100-metre track in Osaka's Asia Pacific Trade Centre.

The marathon is expected to continue until Sunday.

Roland Buerk reports.

Copyright © 2015 BBC. The BBC is not responsible for the content of external sites. Read more.

This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.