About 35 minutes into the soundwalk I had not found any interesting sounds, when I came across what at first looked like a moving van parked at the side of the road, on N Bartlett st. with its ramp unloaded. When I came closer I realized a high hissing sound coming from the side facing the house. It seemed a man was draining air from some kind of high pressurized tank. I walked up and started recording. It just so happened about 10 seconds after I started recording a car with a very low humming muffler started up and gave, I think. a really cool contrasting noise to the hissing of the tank.
YOU CAN LISTEN TO IT here
I placed my microphones almost directly under where the oxygen is being released in the photo.
It turns out the tank was holding liquid oxygen. A serviceman from Home Care Medical was refilling it for an elderly lady that lived at the house. I created a link to hear him breafly explain what liquid oxygen is.
[Serviceman talky] Liquid oxygen is a form of the element-oxygen.It has a pale blue color and is strongly paramagnetic. In commerce, liquid oxygen is classified as an industrial gas and is widely used for industrial and medical purposes. I did a little wikipedia searching.....
No comments:
Post a Comment