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I remember having a "relativity" revelation as a kid riding in the back of our car. So we're cruising down the highway. But wonder, what if I could just stop.
by Pyrodogg 11y ago
I remember having a "relativity" revelation as a kid riding in the back of our car.
So we're cruising down the highway. But wonder, what if I could just stop. I would zip through the back of the car, being stationary on the road and watch the car zoom away. But wait...
I know the earth is rotating too, and we're driving east. So if I stopped, then the car would be zooming forward on the road, but the road itself would be zooming forward even faster than the car's (relative) speed! But wait...
The earth isn't just rotating, it orbits the sun. If I stopped, the road and the car on it, wouldn't just be going forward, they would be falling away at an even greater speed. Within seconds, I'd be floating in space at a snapshot point in the earths rotation and the earth would be cruising away from me. But wait...
The sun moves too! If I were sitting in my car, on the road, on earth, and just stopped, Things would be moving away even quicker than before.
Around this point, the wondering switched from bigger frames of reference to paradoxies if space were a thing we were moving through. In one second, our car would move a certain distance on the road. But the road was also moving so we really traveled an extra special distance forward. And the place we came from wasn't just one second back on the road, it couldn't be given all that extra motion. But it was literally just one second ago, how could it not be that same definite spot on the road. My young mind was blown.
Consequently, my current mind is also blown having typed that out. Spacetime is weird, I need to go clear my head. It's currently being smeared across the solar system at speeds in excess of 100,000km/h
- omegant 11y agoIt would be great to create an animation with the different movements you just described!