Internally coupled ears enable directional hearing in animals

Humans use the time delay between the arrival of a sound wave at each ear to discern the direction of the source. In frogs, lizards and birds the distance between the ears is too small. However, they have a cavity connecting ...

Drones can determine the shape of a room by listening

Imagine a loudspeaker is placed in a room with a few microphones. When the loudspeaker emits a sound impulse, the microphones receive several delayed responses as the sound reverberates from each wall in the room. These first-order ...

Electric cars are a hazard for blind people

Electric cars are good for the environment – but not for people who cannot see. They have problems detecting the silent vehicles. However, Norwegian research scientists are working on a solution.

Five things to consider before getting a feline companion

In the words of Sigmund Freud, "time spent with cats is never wasted." It's a view that's shared by the millions of people across the globe who are drawn to the small felines who chose to live with humans thousands of years ...

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