How do bats overcome the force of gravity and fly?

Answer 1

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!

Answer 2

It creates lift by flapping its wings. Lift is the force that pushes upwards to keeps the animal up in the air

Improved answer: The birds have cavities in their bodies that are hollow. The birds have hollowed bones too. This allows them to fly for long distances without crashing because they are so light. They also use their wings to catch drafts of air to hold them up longer.

Answer 3

By implementing exactly the same strategy as when airplanes fly, elevators climb to

the second floor and beyond, and people walk up stairs ... generate and apply a

force, greater than the force of gravity and directed upward.

Answer 4

Pollen and many other very small particles do not "overcome" the force of gravity; rather, their light weight and small size allow them to be carried by air currents.

Just as a kite flies in wind, these particles may be lifted upwards, also. Motes of dust, feathers, light seeds with filaments or "wings" attached and small pieces of paper may also be lifted by air or wind.

Answer 5

They don't, gravity always pulls them down.

They flap their wings to move air backwards generating thrust to move them forward and the shape of their wings generates lift as the air moves backwards over the wings. When the amount of lift exceeds the force of gravity the bird rises into the air. But if they ever for any reason slow the flapping of their wings so that the moving air over the wings does not generate enough lift, they will fall.

Answer 6

Hey don't. Their light weight and wings help them to glide through the air and gain altitude, gravity still effects them when they're flying.

Answer 7

Bats birds and other insects can fly and overcome gravity because there bones are hallow and light plus for example a bats wing skin is stretchy allowing them to fly better

Answer 8

They flap their wings