Eli5| If you were to drive the *straightest* highway at *immaculate* speeds, would you be able to visualize the curvature of the earth?

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Assuming you wouldn’t explode from going mach ba-gillion in a Camry, and other things barred by a neat thing called physics, if you were going like a hundred thousand miles in a minute, or whatever it takes to clear the entire U.S in an hour. Would it all be straight? Or would the road comically start bending downwards?

In: Physics

6 Answers

Anonymous 0 Comments

Visually you’ll never see it, it’s no different from just standing in a big flat area and looking all around.

The effects on driving? Well, if you drove fast enough, then you would actually be going just short of orbit speed for the surface of the Earth.

If you went above about 7900m/s (28,500km/h), you would be at ground level orbit speed. At that point, the ground not catch up fast enough, so your tires would start to lose contact, which would limit your speed (assuming it doesn’t just lift off and go kaboom).

Realistically though, the aerodynamics of your car will either create lift well before that point, or provide so much downforce you would need to be going several times faster.

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