HKmPUA
Intercom
On Explorer 12 August 2008, #494
Nikon D200 + Nikkor 20mm f/2.8D
This has to be the coolest intercom I've ever seen. This photo is taken at the front gate of an old apartment building in Sham Shui Po district of Kowloon and the hole is the end of a pipe that leads to the upper floors of the apartment building. To talk to someone in the upper floors simply speak into the hole and the sound is transmitted acoustically through the metal pipe, similarly the sound from your friend above comes out from the same hole. Simply ingenius!
Intercom
On Explorer 12 August 2008, #494
Nikon D200 + Nikkor 20mm f/2.8D
This has to be the coolest intercom I've ever seen. This photo is taken at the front gate of an old apartment building in Sham Shui Po district of Kowloon and the hole is the end of a pipe that leads to the upper floors of the apartment building. To talk to someone in the upper floors simply speak into the hole and the sound is transmitted acoustically through the metal pipe, similarly the sound from your friend above comes out from the same hole. Simply ingenius!