A white noise machine is used to give the impression of being surrounded by either other people or by traffic sounds. Some people have a hard time sleeping in total silence and use this machine to help.
maybe because he/she is lonely or it's sick
The passengers sit. The pilots fly the plane, and the flight attendants (stewards) take care of the needs of the passengers. Other things that the passengers do while flying include: eating, sleeping, watching in-flight movies, reading, writing, drawing, talking on the phone (AirFone), and talking to the other passengers. And occasionally using the lavatories for one purpose or another. The enforced period of seclusion on long flights makes it an ideal time to read or write, because normal daily activities often prevent (or interrupt) concentration.
If the clicking noise you are hearing from the rear panel in your Mountaineer is coming from the passengers side, you could be hearing the relay contact opening or closing for the automatic headlights (if equipped), rear window defrost, rear wiper, or a host of other features. Behind the trim panel in the rear passengers side are a bunch of the control modules, including Security and Body Control.
Yes, since white noise contains all frequencies at equal intensity, it can mask loud sounds that stimulate your brain. That's why it's often recommended for sleeping difficulties and sleep disorders like insomnia. Find out more the world is sleeping better with White Noise(Please see the link from below picutre). White Noise also helps you relax during the day and sleep great at night. Try it out and you will like white noises.
The Trees Buffer most of the noise in one area and reduces it in the other. When you cut a tree down, it increases noise in the other area due to no tree buffering the noise.
In a 3 class configuration and typical arrangements it will carry 525 passengers. It can carry up to a maximum of 853 passengers on other configurations.
They are called flight attendants. They serve the passengers with food, alcohol and other things. They help passengers escape in the time of disasters of accidents.
Noise criteria, commonly known as NC, is a numerical index used to rate indoor noise, noise from air-conditioning equipment, and noise in any other given space.
transportes products and of course other passengers
White noise, in the form of a sound machine, helps many people sleep - by blocking out surrounding noise (in other rooms or apartments, or traffic noise).
White noise, in the form of a sound machine, helps many people sleep - by blocking out surrounding noise (in other rooms or apartments, or traffic noise).