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The existence of the horizon at sea, as a circle of radius proportional to altitude of view-point. (Sorry - I don't know the formula.) Mapping. Arial evidence from aircraft and now of course, spacecraft.
According to the scientific consensus Earth has been in existence for approximately 4.5 billion years. This is in contradiction with the view many religious people have. They hold the view that Earth is around 6000 years old.
It is a statistical certainty.
the first american woman in space explains what can be seen and understood abot earth from the perspective on space
The New Moon is when the Moon is between the Earth and Sun, so that its lit side is away from view, and its dark side is facing the Earth.
A sphere looks like a circle from any angle or direction. (That's one of the ways people knew that the Earth is a sphere ... every time there's a lunar eclipse, the Earth's shadow always has a circular shape when the moon crosses through it, no matter which way the Earth is turned.)
From above the North Pole, the Earth rotates anti-clockwise, or right to left.
a flat disk
A flat disk.
The stars in a constellation are roughly in the same direction, from our point of view, if that's what you mean.
The earth's rotation's only effect on the view of the stars is the direction you're looking in when you look in the sky. Thus, during the day, you're looking "at the sun," and at night, you're looking "away from the sun." This is also dependent on the earth's position in it's orbit around the sun, because depending on the time of year, the sun's light obscures different stars from our view, and looking "away from the sun" means looking in one direction in winter, and in the opposite direction in summer.
Any view of a sphere will be a circle.
circle
The top view is a circle and the side view is a rectangle.
The earth reflectsAnswer:The Earth was found out to be spherical because it always casts a shadow (during eclipses of the Moon) that was either circular or portion of a circle (partial eclipse). There's only one solid shape that always appears to be circular, regardless of view point, and that's a sphere.I'm not sure about the Moon, but I assume that it was pretty much the same process - it always appears as a circle or part of a circle.
view
If you are in a airplane rainbows are actually a circle shape,but from our view it is semi-circle.