Most of us associate echolocation with bats. These amazing creatures are able to chirp at frequencies beyond the limit of our hearing, and they use the reflected sound to map the world around them. It ...

Echolocation is a mechanism that can allow you to navigate the environment by using sound instead of sight. Animals like bats and dolphins are famous for their echolocation skills — however, not many ...

Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. Bats are well known for their ability to “see” with sound ...

Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. In an environment without light, or where sight is otherwise ...

ELIZABETH GOLDRING, a poet and artist, is nearly blind. Now, after years of hard work, she can view words and faces and wander through a virtual art gallery of her work. An instrument called a “seeing ...

When you think of echolocation, you probably think of bats or dolphins. But echolocation has also been used as a way for blind people to navigate, too. Despite the skill's usefulness, few blind people ...

Toothed whales use sound to find their way around, detect objects, and catch fish. They can investigate their environment by making clicking sounds, and then decoding the "echoic return signal" ...

Erik Weihenmayer is blind—but that hasn’t stopped him from climbing mountains. Receive emails about upcoming NOVA programs and related content, as well as featured reporting about current events ...