Reference Frame

When it comes to physics, reference frames are used time and time again. In fact you experience different reference frames everyday.

Have you ever been in a car? No? Well a car is a contraption with four wheels and a motor. Basically a car can move and travel.

When glancing at a car traveling down the highway it whizzes by you. Clearly you see that the car is in motion. From the frame of the car however, if you were standing behind an infinitely large black background it would appear to the driver that you are infarct the one that's moving.

If a person in a car rolls a ball toward the front end of the car, to the person in the car it would appear that they simply rolled a ball with a speed of a couple m/s. From the perspective of the person watching they would see the ball rolling that couple of m/s but also have to the the speed of the car to the total speed of the ball.

Now, think about standing on the earth. You feel like you are still but you are actually being slung around the sun at 107 000 km/h. So even tho you are standing on the earth you are incredibly actually moving 107 000 km/h. But wait, while the earth orbits the sun the sun orbits our galaxy which is moving an average of 828 000 km/h.... so even when you are still on earth you are moving 935 000 km/h.

The craziness doesn't stop there there is also the consideration of maybe our Milky Way Galaxy is orbiting something else? Also... our universe is rapidly expanding all the time, gotta factor that in too.

I'll leave this up to you to do some digging, I just thought it was a fascinating thought to share.

Cheers.