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So how exactly, I never really thought about it. Think, when we see, we think we're on aflat plane, that has mountains, trenches, etc, but the Earth is elliptical. How do we get the illusion we're right side up, when we're actually on a flying rock.

2007-08-05 23:23:05 · 5 answers · asked by Jon 1 in Science & Mathematics Astronomy & Space

No ****. I'm asking how if in reallity, unless we're on the north pole, we're on a slop, how is the slope created into the illusion we're on flat ground.

2007-08-05 23:33:36 · update #1

5 answers

gravity omg and point of view. go take a class in earth science, physics and biology and you'll have all your questions answered.

2007-08-05 23:31:09 · answer #1 · answered by Justin Lin 2 · 0 2

You can go to a sea shore with a binocular and look at a big ship that is going away from you(perpendicular to the shore).When it starts disappering,the body will disappear first and still you can see the mast if it is there.Finally the top of the mast only will be visible before that also vanishes. This will prove that the earth is not flat and has a curved surface.I studied this illustration in my primary class.
Regarding the uprightness, the earth's gravity is always pulling you whether it is your head,side or feet.It is a matter of convenience that we adjust ourselves so that we stand on our legs.If you can, you can stand on your head.We dont have objection.
We dont feel the rotation of the earth as the whole atmosphere is rotating with the earth similar to the fact that we do not feel the movement of a train if you are closing the door and do not look outside.

2007-08-06 01:40:23 · answer #2 · answered by Arasan 7 · 0 1

There's nothing illusional about being on flat grounds. Its such a huge planet and we are so small, you can see the difference.

The force of gravity keeps us right side up.

We are flying through space, but you cant feel it. Imagine sitting a car with no window. You cant tell if the car is moving at a constant speed or its at a stand still because you can see outside. When you can see outside, you see the roads and bulding moving in relative to the motion of the car, and your mind concludes that the car is moving.

But if you look up at the night sky, the star position are changing. It gives us the sense that the earth is indeed rotating. But its very slow, so unless you observe long enough, you're not going to notice that the earth is moving.

It's all because we're just so small and the universe is unimaginably large, that makes it looks as if our earth is going nowhere.

2007-08-05 23:44:10 · answer #3 · answered by Hornet One 7 · 0 1

Gravity is pulling everything toward the center of the Earth, and we perceive "down" as the direction that gravity pulls. Since every level surface (like the calm ocean or a flat plane) on the globe is perpendicular to the direction to the center, we always feel upright.

The surface looks flat only because the globe is so big compared to a person. If you draw bigger and bigger circles, and only focus you attention on one part of the curved edge, it looks less and less curved as the circle gets bigger and bigger. With an 8,000 mile diameter circle seen from only 6 feet away, it seems totally straight.

2007-08-06 03:30:06 · answer #4 · answered by campbelp2002 7 · 0 0

You need to put away that glass crack pipe.

2007-08-05 23:31:06 · answer #5 · answered by Anonymous · 0 1

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