Bats build mental maps to recognise surroundings
The study proposes that template-based place recognition might underlie the sonar-based navigation known as echolocation that bats usually are known to use for navigating and finding food in the dark.
A hearing aid that guides blind walk safely
A tech start-up, floated by a former Wipro geek, has innovated a smart hearing aid with sensors to make the visually challenged (blind) walk safely by avoiding objects on way.
Sep 16, 2015, 22:03 PM IST