I read it all and Thanks ,
I don't have any points i'm honestly here just to find out proof that the earth is flat or not and so far everyone is teaching me that my original points are easy to disprove I'm okay with that .
Dont worry, as long as you keep a reasonable attitude, Im fine with debate, this kind of questions are very natural.
I said this "2.Other planets do not spin ! ." From Earth i don't see any stars or the moon spin lol I don't know it just looks like it's not spinning .
The moon does spin, and in fact it is the reason we always get to see the same face: the earth's spin and moon's spin are synchronized (through a complicate phenomena called tidal lock). Its similar to having a ball tied to cord, then start spinning really fast with it on your hands. You will always see the same face, though to an outsider both of you will be spinning. A gif of it:
I get the point that it's like fish in a tank if i toss the fish tank and not break the glass the fish do not know they moved . that's how earth to us . but i'm driven to see it spin the speed nasa say's it spins at it's just a Personal goal that may never come true .
There is an easy way of calculating the linear velocity caused by earth's rotation, without resorting to interferometrics and so. Lets say the earth is a perfect sphere of 12700 km of diameter. We know that the earth rotates at a rate of 1/24 turn per hour. Lets get this into SI units: (2pi radians)/(86400 seconds) = 7.3 × 10-5 rad / s
There is a formula to calculate the linear velocity of a point rotating around a disk (or anything that has only one axis of rotation):
V = omega[angular velocity] * radius. Therefore,
V = 7.3 × 10-5 rad / s * 6350 Km *3600 s/h= 1669 Km/h. And thats just the speed caused by rotation. Many people take into account far, far greater speeds, like the orbital speed around the sun, the speed of the solar system, the galactical orbit speed, the speed of the galaxy on our supercluster, etc. Movement is relative