Before radar, one of the methods used to detect enemy aircraft was acoustic location. These "ear amplifiers" would be manned (literally) to detect the sound of noisy aircraft engines approaching.
Before radar, one of the methods used to detect enemy aircraft was acoustic location. These "ear amplifiers" would be manned (literally) to detect the sound of noisy aircraft engines approaching.
Before radar, one of the methods used to detect enemy aircraft was acoustic location. These "ear amplifiers" would be manned (literally) to detect the sound of noisy aircraft engines approaching.
Before radar, one of the methods used to detect enemy aircraft was acoustic location. These "ear amplifiers" would be manned (literally) to detect the sound of noisy aircraft engines approaching.
The Wave Organ is an acoustic sculpture that amplifies the sounds of the waves from the bay, creating low, gurgling notes that ebb and flow with the ocean.
The Wave Organ is an acoustic sculpture that amplifies the sounds of the waves from the bay, creating low, gurgling notes that ebb and flow with the ocean.