is there any relation between food pipe and gravity?
Answers
No gravity in space? Who told you that there is no gravity in space? I assure you! There is gravity in space! There is gravity everywhere! There is no place in the entire universe that has no gravity! The astronauts are weightless while in orbit around the earth. But, intrestingly, this is precisely because there IS gravity. When an object is in orbit it is actually falling. But as with any thrown object as it falls vertically, it also travels horizontally. When you throw a rock, for example, it travels horizontally because you threw it and it travels vertically because gravity is acting upon it. What would happen if you could throw a rock so hard horizontally that as it fell vertically the curve of its arc exactly matched the curve of the earth? If that happened the object would never hit the ground would it? That's orbit! So, even though the astronauts are weightless, there is gravity. Still, there is a problem. They are 'floating' around the spaceship because, well, they are not actually floating. They are falling! They are falling just like your rock. But, not only are they falling, their spaceship is also falling. Since everything is falling together it looks like they are floating. Imagine yourself in a falling elevator. If the elevator were falling with you in it and you were all falling at exactly the same rate it would look like you were floating in the elevator. Have you ever been on the ride at Six Flags where you sit in the chair and you are dropped. People on this ride often place a penny in front of there face just as they are released to fall.
Yes there is a connection between them that food which moves downward is due to gravity othervise it cant go under the process.