yellow submarine i need the lyircs?

Some one please give me the lyrics, and explain to me what the song was meant to symoblize?? thank you!

Answer
Beatles Yellow Submarine Lyrics:
In the town where I was born
lived a man who sailed to sea
And he told us of his life
In the land of submarines
So we sailed up to the sun
Till we found a sea of green
and we lived beneath the waves
In our yellow submarine
We all live in a yellow submarine
Yellow submarine, yellow submarine
We all live is a yellow submarine
Yellow submarine, yellow submarine
And our friends are all aboard
Many more of them live next door
And the band begins to play
We all live in a yellow submarine
[ Find more Lyrics on www.mp3lyrics.org/hj ]
Yellow submarine, yellow submarine
We all live is a yellow submarine
Yellow submarine, yellow submarine
(Full speed ahead Mr.
Boatswain, full speed ahead
Full speed ahead it is, Sgt. Cut
the cable, drop the cable
Aye, sir, aye Captain, captain)
As we live a life of ease
Everyone one of us has all we need
Sky of blue and sea of green
In our yellow submarine
We all live in a yellow submarine
Yellow submarine, yellow submarine
We all live is a yellow submarine
Yellow submarine, yellow submarine
We all live in a yellow submarine
Yellow submarine, yellow submarine
We all live is a yellow submarine
Yellow submarine, yellow submarine

How does a submarines sonar work?

John

How does a submarines sonar work?

I recently watched some submarine movies, such as the hunt for the red October, and crimson tide; and have subsequently become interested in submarines. However my understanding of sonar is very limited; and I donât understand how it works. I understand that active sonar, involves emitting sound from the submarine, and that the characteristics of the echoes which you get from this, are then used to compile data related to other submarines. And that passive sonar involves listening for the sounds of other vehicles-thatâs all I know.

I donâtâ understand -firstly:

1. The types and quantity of data which you can get from sonar, such as the distance of objects, their density, speed, shape etc.


And secondly:


2. How whatever data you get is interpreted by the ships sonar operator (or whatever their called) in a useful way.


I am aware that echo cardio scans can use sound to get a 3D image of organs in the body- so can a submarines sonar do this? And then display this on a computer screen; so that 3D images of vehicles, shoals of fish, the contours of land on the coast, icebergs etc can be seen that way? Presumably you would definitely need all of that kind of information displayed in that form, to navigate a submarine through the ocean and hit moving targets. However all you see in the movies is a guy wearing headphones, whilst looking at a screen with blips on it - this doesnât make sense.
How can a guy tell things such as vehicles or even a whale or somethingâs shape, distance, speed, density etc just from listening to it? And what about things which are not moving and making sound, such as the land or icebergs? The only thing which you seem to get from active sonar is blips on a screen. How does that tell you somethingâs shape, speed, distance density etc?
I would greatly appreciate it if you can answer this question for me.

Answer
Submarines receive sounds from many hydrophones. Hydrophones are acoustic transducers. Today, sonar officers rarely listen sounds in order to make a decision. Computers analyze sounds( generally cavitation noise and machinery noise) and compare them with their library and display targets speed, distance, bearing, course, type, if pinging, active sonar type and power that reaches to submarine and etc.
Navy submarines (generally) don't show shapes and density because it is unnecessary. However, almost all submarine active sonars can make sea floor scan etc. to see shapes.

Lastly, submarines have active sonars but, unlike action films, they don't use them. Because if they send only single ping, enemy can easily track from miles away and destroy the submarine. Sound in water can travel huge distance.

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