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Birds are able to fly because of a variety of specialized adaptations. They have high metabolisms to supply their body with energy. They have lightweight bones. They have feathers, some of which are "flight feathers" that are long, strong, and able to produce lift and act as control surfaces. They also have a bone called the furcula, more commonly known as the "wishbone," in their chest, which is very important for being able to produce the strength and skeletal support needed to flap their wings.
The mechanics of flight are not unlike an airplane; the factors of lift, weight, thrust, and drag all interact to allow for controlled flight. By flapping their wings, birds create thrust and lift. They are able to steer by changing the shape and orientation of their wings and tail. They change the shape of their wing between the upstroke and downstroke as they flap to minimize drag on the upstroke and maximize the thrust generated downard on the downstroke, providing both lift and thrust. <><><> When all the feathers in a bird's wings are set in a certain way, so that the air cannot flow through them, the wing takes up a special shape which makes the air flow much faster over the top surface of the wing than it flows below the under-surface of the wing when the bird is gliding through the air. The difference in air-speed between the top and bottom surfaces of the wings gives the wings a "lift" force which can easily counteract the force of gravity.
Birds also have very powerful muscles to power their wings, which means they can flap their wings so fast that they can actually take off from the ground and move forward through the air, as well as glide "on" the air.
A very important fact is that a bird's wings are made of feathers. The feathers are not just ornaments! A bird can make its set of feathers close tightly together, which, when gliding or flapping, forces the air to flow around their top and bottom wing surfaces to give "lift", or it can make its set of feathers "open up", which allows the air to pass straight through them and, therefore, the wing, which allows the bird to fall under the force of gravity.
So, because a bird can set its wing feathers to be in any of a vast number of intermediate positions between "feathers fully open" and "feathers fully closed" - not just feathers fully closed for the start of a "flap" going to fully open before the end of a "flap", as would be necessary whilst flapping to take off - a bird can take off, glide, swoop down, glide again and then rise up again or drop, just as much as it wants to do!
What else can I help you with?
If gravity pulls things down how come plans fly and not get puuled down?
Planes are able to fly because they generate lift by moving air over their wings through propulsion from engines. This lift force counteracts the force of gravity, allowing the plane to overcome the downward pull and stay in the air.
What force makes it difficult for an airplane to gain altitude fly upward?
These forces are called drag and gravity. Gravity is the downward force on the plane, keeping it from flying, but if the lift, the opposing force, is strong enough, you will achieve flight. Drag is the force pulling you back, making it harder to go forward. This force is produced by air pressure on the front of the plane. The opposing force in this case is thrust, which makes the plane move forward.
Why does gravity my pencil not let my fly into the air?
Gravity is a force of attraction that pulls objects toward each other based on their mass. In this case, the Earth's gravity is pulling your pencil towards the ground, preventing it from floating in the air. The force of gravity is much stronger than any force you could exert to make the pencil fly upwards.
What has to happen in order to make something fly?
In order to make something fly, it needs to generate enough lift force to counteract the force of gravity pulling it down. This is typically achieved through the use of wings or other aerodynamic surfaces that create lift as the object moves through the air. Additionally, the object must overcome drag, which is the resistance of the air to its motion.
Why do the aircraft need a force from their engines to fly at a steady speed?
Aircraft need a force from their engines to counteract the drag force that acts against them as they move through the air. This force is necessary to maintain a steady speed and keep the aircraft in level flight.
Why is lift important in flight?
Because the plane has to overcome the force of gravity and it has wings to create lift to make the aircraft fly.
If gravity pulls things down how come plans fly and not get puuled down?
Planes are able to fly because they generate lift by moving air over their wings through propulsion from engines. This lift force counteracts the force of gravity, allowing the plane to overcome the downward pull and stay in the air.
The force of gravity helps planes to fly?
if theres no gravity then anyone could fly, so
What force makes it difficult for an airplane to gain altitude fly upward?
These forces are called drag and gravity. Gravity is the downward force on the plane, keeping it from flying, but if the lift, the opposing force, is strong enough, you will achieve flight. Drag is the force pulling you back, making it harder to go forward. This force is produced by air pressure on the front of the plane. The opposing force in this case is thrust, which makes the plane move forward.
Is it possible to fly with magnets"?
No, it is not possible to fly with magnets. Magnets do not have the ability to generate enough lift to overcome gravity and allow for sustained flight.
Is it true force of gravity helps planes fly?
yes it is true
How does a force of gravity helps you at a planet?
So you don't fly away.
Why is it possible for Jumbo Jets to fly?
For the same reason that any aircraft can fly: the force due to lift is greater than the force due to gravity.
How water bottle rocket fly?
the rocket is pushing water downwards which means that the water pushes the rocket upwards very hard that it can overcome gravity and fly.
Why does gravity my pencil not let my fly into the air?
Gravity is a force of attraction that pulls objects toward each other based on their mass. In this case, the Earth's gravity is pulling your pencil towards the ground, preventing it from floating in the air. The force of gravity is much stronger than any force you could exert to make the pencil fly upwards.
Where can gravity can be found?
Gravity can be found everywhere on Planet Earth, the force that keeps us on the ground and doesn't allow us to fly is called gravity.
When the aeroplane fly in the air y dont the gravitation does not take place?
Air planes are affected by gravity too, just like everything else. What makes them fly is that the upward force of the wings is bigger than the downward force of gravity.
