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A childhood belief about physics

When I was a kid, I used to believe that the sky was the surface of a solid sphere and that we were inside this sphere.

I think the fact that the sky is usually blue and satellite pictures showed the Earth as being blue led me to belive this.

I was never able to figure out the knotty problem of how rockets managed to pierce through this solid wall of sky to make their way into space though.

— Arnab

others believed things like this

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