Bats Change The Shape Of Their Ears Instantly To Hear Better
Nov 16, 2011 12:43
Bats have terrible vision, you should know that already. And since they rely on their hearing more than any other mammal, they can navigate the night sky just by using their ears and the results of their echolocation, a natural sonar system.
What's more amazing to hear is that, in order to hear better, the returning ultrasonic pulses that are sent out, bats can change the structure of their ears in one extreme configuration to another in a tenth of a second.
Discovered by researchers at Virginia Tech who studied and captured the high speed movements of the bats' ears to udnerstand just why the ears were changing shape.
Head researcher Rolf Müller explains:
"Certain bats can deform the shapes of their ears in a way that changes the animal's ultrasonic hearing pattern. Within just one tenth of a second, these bats are able to change their outer ear shapes from one extreme configuration to another. In about 100 milliseconds, this type of bat can alter his ear shape significantly in ways that would suit different acoustic sensing tasks. A human blink of an eye takes two to three times as long. As a result of these shape changes, the shape of the animals' spatial hearing sensitivity also undergoes a qualitative change.
This is KFC's Tray Typer Keyboard. It's only available in Germany for now, but it's a pretty genius product. It lets you keep your fingers clickin' good, basically solving a first world problem of letting you text with sticky fingers while you enjoy your food without getting your real smartphone screen dirty. Read more
The UI designs in Avengers: Age of Ultron are surely something that doesn't get as much spotlight as the action, but definitely deserves some credit for making the movie look more incredible. Read more
Believe it or not but a lot of us don't really make calls anymore. We do call, but it's not very often. There's more messaging then there is talk time. So with that in mind, shouldn't the next iPhone be without the phone app? Read more