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Perhaps the first physical experiment that proved rotation of the earth was Foucalt pendulum. Well aligned pendulum always oscilates in the same plane. As the Earth rotates below it, during the day rotation becomes visible (search e.g. Wikipedia for further reference).
Today there are many more sofisticated experiments that can prove movements of the Earth. For example we can measure shift in wavelengths of light emited by stars as we move toward them on our orbit around the Sun (Doppler effect).
What else can I help you with?
How do you know your moving?
If you see anything that appears to be moving, then you know that relative to that thing, you're moving. That's the best and only thing you can do, because there is no such thing as 'really' moving ... only moving relative to something.
How do you know IF a object is moving?
An object is moving if its position is changing with respect to a reference point over time. This can be observed by visually tracking the object's motion or using instruments to measure its displacement.
The moon revolves around earth at a fairly constant speed Is the moon moving?
When you ask 'Is something moving ?', you always have to tell compared to what. As we all know, there's no such thing as 'real' motion, there's only motion relative to something else. -- Compared to the sun, the moon is revolving around it, in an elliptical orbit that has these small dimples in it because of the gravitational influence of the nearby Earth. -- Compared to the Earth, the moon is revolving around it once every 27.32 days. -- Compared to the moon, the moon isn't moving at all.
Is power of the object moving with constant force and velocity can be meaured?
Please slow down. A few points need to be clarified here: -- There's no such thing as "moving with constant force". -- If the object exerts a force on something else, or a constant force acts on the object, then the object can't move with constant velocity. It must accelerate. -- A moving object has energy, but it doesn't have 'power'. Power is the rate at which energy is moving, or changing, or being used. If the object is moving with constant velocity, then its energy is not changing. -- If its energy is changing, then its velocity, or position, or temperature is changing. Either the object is transferring energy to something else (like brakes), or something else is transferring energy to the object (like an engine). Either way, the rate at which power is exchanging between the object and something else is the power. But there's no such thing as "power of the object". Now, what was it you were saying ? The energy of the object can be calculated, if we either know or measure its mass, electric charge, altitude, speed, temperature, etc.
what is a fact?
something know or proven to be true like the sun is a star . the earth is round. earth is a planet .
How can the moon and sun tell us that the earth is moving?
The moon and sun can tell us that the earth is moving as our earth spins adding to the sight of turn of the Moon which we can see in the sky moving throughout the day. The sun can tell us the earth is moving as we can see shadows on people and objects moving around telling us something has to be moving. It has been scientificly proven that is not the Sun or "Sol" so we know it is the Earth.
How do you know the sun does not go around the earth?
If we only had the two points Earth and Sun, we would not be able to tell for sure which does what. Fortunately, we have many points of reference. We can see the relative movement of each object in space and determine what is moving in relation to us. Bottom line is that we are all moving through space, but we move around the sun at the same time the sun is moving...possibly around something else!
Do frogs and toads eat something else other than insects?
well i don't know about a frog but i know that toads will eat earth worms sometimes
How do your know the earth's plates are moving?
earthquakes
How do you know that it the earth is moving?
by the winter or summer
How sun is greater than earth?
if you mean by size that it is forcibly bigger if you mean something else than sorry i don't know
What does ultraviolet have to do with the sun and earth from moving slow?
nothing, as far as I know. The earth isn't moving slow, it's moving extremely fast.
What else did the scientist didn't know that live on earth?
If we do not know we can not answer.
How do you know that you KNOW something?
You can conclude that you know something if you're able to teach/explain it to somebody else
How do scientists know the poles of the earth are moving?
a compass
How do you know if you were bit by a leech and not something else?
i
As small as what?
In order to know if something is as small as something else one needs to know what you are referencing.
