Or Spitz asks the followers "Which rotates, the earth or the sky?"
(Screenshot, from Or Spitz's Instagram page)
Yesterday Saturday, confectioner and network host Or Spitz posted a question on Instagram following an intervention with a friend: What's going around?
Earth or the clouds?
The ball itself or the sky?
So we have a qualified answer.
The short answer is: they both "rotate".
And the longer answer, and we guess this is what Spitz meant - what do we see moving?
Only the clouds.
Although the Earth is spinning on its axis, we cannot see it.
The movement we can see with the eye is only that of clouds.
Let's start with the explanation about the Earth.
The earth, of course, rotates on its axis, and actually moves at quite a high speed, but we cannot feel it for the same reason that we cannot feel the speed at which a train travels when we are traveling in it.
And the reason is the so-called "point of reference" - if we are at a fixed point on a fast-moving object, we are moving together with it, so we cannot feel or see its own movement.
The same for the Earth: since we are normally at a more or less fixed point on the shell of our blue-green ball that rotates around itself in space, and we are moving along with it, we will not be able to see it moving, even though it is moving at a high speed of about 1,600 km/h (in the equatorial region) around its axis.
Yes, he's spinning.
The movement we can see with the eye is only of clouds. (Photo: ShutterStock, 24K-Production)
And now for the second part - the movement of the clouds.
Although the movement of the earth has a certain effect on the movement of the clouds due to their relatively high position in the atmosphere, it is not a direct effect - but an effect on winds and air currents.
When you lie on your back on a clear day and look up for a few minutes,
the movement you see of the clouds is due to winds
To explain the movement of the clouds, we must first remember what are clouds?
Clouds are clumps of vapor, tiny water droplets that have condensed into a mixture of water and ice crystals, which are what make up what we call clouds.
There are different types of clouds, and the thicker ones will not move easily with the wind, but the thinner ones, winds can definitely push and break.
The movement we see of clouds is mostly horizontal, but there are also clouds that move vertically, and that's thanks to interference - but that's another story, light.
Hope you won the bet.