because that air conditioner is full of air. It is letting the air out.
Your central air conditioner may make a loud noise when it comes on. This is because it may have a leak somewhere in the system.
Madagascan hissing cockroaches make a noise by forcing air out of a special hole.
when you breath is air and force it out with your tongue it makes the hissing noise
A hissing noise
Yes. They make grunting-hissing noises.
Possums make a variety of hissing and snorting noises.
Sheep do bleat and snake make a hissing noise.
The hissing sound of the blue flame on a Bunsen burner is due to the rapid movement of gas molecules as they mix with air and combust. This turbulence creates vibrations and generates sound waves, resulting in the hissing noise.
Cats make a spitting noise when playing to mimic the sound of a hissing or growling animal, which is a natural behavior to show excitement or aggression during play.
When threatened, the kowari makes a loud, sharp, staccato chattering sound. They also make a hissing sound in defence.
The water pressure becomes faster in that area because there is a tighter spaces for the water to squeeze through so you hear the hissing
They dont make noise until they are near you. Then they make a hissing sound like a fuse going off then BOOM the explode.