- published: 20 Jul 2011
- views: 77724712
A wing is a type of fin with a surface that produces aerodynamic forces facilitating movement through air and other gases, or water and other liquids. As such, wings have an airfoil shape, a streamlined cross-sectional shape producing lift.
The word "wing" from the Old Norse vængr for many centuries referred mainly to the foremost limbs of birds (in addition to the architectural aisle.) But in recent centuries the word's meaning has extended to include lift producing appendages of insects, bats, pterosaurs, boomerangs, some sail boats and aircraft, or the inverted airfoil on a race car that generates a downward force to increase traction.
Various species of penguins and other flighted or flightless water birds such as auks, cormorants, guillemots, shearwaters, eider and scoter ducks and diving petrels are avid swimmers, and use their wings to propel through water.
A wing's aerodynamic quality is expressed as its lift-to-drag ratio. The lift a wing generates at a given speed and angle of attack can be one to two orders of magnitude greater than the total drag on the wing. A high lift-to-drag ratio requires a significantly smaller thrust to propel the wings through the air at sufficient lift.
You saw me crying in the chapel.
The tears I shed were tears of joy
I know the meaning of contentment
Now I am happy with the lord
Just a plain and simple chapel
Where humble people go to pray
I pray the lord that Ill grow stronger
As I live from day to day
Ive searched and Ive searched
But I couldnt find
No way on earth
To gain peace of mind
Now Im happy in the chapel
Where people are of one accord
We gather in the chapel
Just to sing and praise the lord
Evry sinner looks for something
That will put his heart at ease
There is only one true answer
He must get down on his knees
Meet your neighbor in the chapel
Join with him in tears of joy
Youll know the meaning of contentment
Then youll be happy with the lord
Youll search and youll search
But youll never find
No way on earth
To gain peace of mind
Take your troubles to the chapel
Get down on your knees and pray
Your burdens will be lighter