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Flat Earth Theory / Re: Unsure how to explain this gif

« on: December 06, 2017, 02:46:46 AM »

its just because of how the flat earth spins through space, take any plane and try this out. this gif doesn't occur because the earth is supposedly round, it occurs because of the rotation of the flat earth.

Bruh have you ever thrown a frisbee?  IDK, maybe my eyes don't work, but they seem pretty flat to me.

2

Flat Earth Theory / The moon, stars, and the sun

« on: December 06, 2017, 02:36:17 AM »

How would other celestial bodies exist with a flat earth?

Many flat-earthers claim that there is no gravity.  If this is true, how would we experience the movement of the sun and stars across the night sky (movement relative to our frame of reference, that is).  If there is gravity, if the earth is flat, how would the moon revolve around the earth in a uniform path, given that g=(Gm1m2)/(d^2)?

3

Flat Earth Theory / Centripetal acceleration

« on: December 06, 2017, 02:33:22 AM »

So... how do y'all explain centripetal acceleration?

Centripetal acceleration is a term that describes acceleration in the centripetal (latin: "center seeking") direction.  Since acceleration is, by definition, a change in velocity over time, and velocity is, by definition, change in displacement over time, thus the three ways to change velocity, and thus induce acceleration, are by increasing speed, decreasing speed, or changing the vector direction of velocity.  Therefore when an object is rotating, other objects on its periphery experience acceleration due to rotational movement.

Deriving this centripetal acceleration based on the blasphemous non-flat-earth numbers is relatively easy.  Centripetal acceleration is calculated as the magnitude of velocity squared divided by radius.  Using F=ma, this centripetal acceleration can be used to calculate a centripetal force of around 2 N on a 60 kg person.

Because of this centripetal acceleration, earth is not an inertial frame of reference.  Therefore, if the earth is round, we should be able to find apparent violations of Newton's inertial laws.  The most sensitive equipment can detect this, and even simpler, this can be witnessed by dropping an object from near-atmosphere, or even as low as planes.  Even adjusting for wind and air resistance, the ball should wanders from the location it should strike in the absence of centripetal acceleration.

So... is centripetal force just a lie?