I don't know if this is what you're looking for, but I'm pretty sure it's a sundial.
no not that i no of i have been wondering the same thing for a long time if u find one tell me
It was invented by priests to honor their gods
Never. It was, however, slavic (extremly long time ago; its name is slavic).
The phrase "change in motion" is rather slippery.The size of the change in the object's position, per unit time, in a specifieddirection, is the component of its velocity in that direction.The size of the change in the object's velocity, per unit time, in a specifieddirection, is the component of its acceleration in that direction.
History is anything that happened to an object over time, background is things that influenced an object in the past
The Sun and it's angle.
[object Object]
The gradient of a distance-time graph gives the object's speed.
Of course yes. An object is stationary when the graph is horizontal in a displacement-time graph.
yes it can over a long time but it is very long not in your life time
[object Object]
Distance covered at a given time.
It tells the time and location of the object that you are tracking at one point in time.
axe
The object is accelerating
As long as acceleration is zero, the object's velocity is constant.
The look back time of an object is determined by how long it takes the light from that object, usually a star or galaxy, to reach an observer here on earth.