My family members say you’re walking downhill from the north pole to the equator, and uphill going the opposite way, but that doesn’t make sense, because you’re still walking along an arc on the sphere. I’ve stared and stared and stared at this baseball in my hand, but can’t figure it out.
In: Physics
Constantly downhill. Think of a large ball and put your finger on the very top. No matter which direction you love your finger, it will have to go down to remain on the surface of the ball.
That’s assuming a perfect sphere with no imperfections. On earth, obviously the ground is oddly shaped: mountains, valleys, etc make you have to literally up and downhill.
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