Acceleration of the Earth

I know this sort of topic has been brought up and (badly) explained so I'd like a proper answer.

If the Earth is accelerating upwards at a speed of 9.8m/s^2 we will feel the "effects" of gravity. A nice explanation on behalf of the Flat earthers.
But as a lot of people know, if an object keeps travelling at a constant acceleration it will get closer and closer to the speed of light BUT will never reach it. The effects of this are a massive increase in mass and the object will slow and become to a halt acceleration wise. The result is that the earth will be moving at a tremendous velocity but the velocity will be constant. So do we say goodbye to gravity then? Cos we're pretty much screwed if we reach our terminal velocity wouldn't you say?

Feel free to explain in terms of special relativity, but make sure you know what your talking about

From what I understand man its not like accelerating but moving at this 9.81m/s. And aparently everything in the universe moves at this speed.

if the Earth were moving at 9.81m/s (and noting that Earth is consisting of the solid ground beneath us and sky above us) we would not feel the effects of gravity.

Imagine a bee in a car travelling at 9.81m/s. The bee does not have to travel 9.81m/s in the same direction as the car to stay still. Instead it hovers quite nicely.

assuming the windows are not open on the car :lol:

What happens if the bee stings you in mid drive while your on you way to the inlaws?

But as a lot of people know, if an object keeps travelling at a constant acceleration it will get closer and closer to the speed of light BUT will never reach it.

Right.

The effects of this are a massive increase in mass and the object will slow and become to a halt acceleration wise.

The effect is not in our frame of reference.  We will never 'halt' acceleration wise.

The result is that the earth will be moving at a tremendous velocity but the velocity will be constant.

The velocity is always increasing.

Cos we're pretty much screwed if we reach our terminal velocity wouldn't you say?

We can't reach our terminal velocity.

Ok, so what your saying is that we will constantly accelerate forever without reaching a terminal velocity?

We can accelerate forever and never reach the speed of light.

i disagree...

Approaching speeds close to that of the speed of light will make the Earth itself increase in mass. Thus, more energy will be needed to keep the acceleration constant.
Now where is this infinite supply of energy at?

Suppose we have an infinite amount of energy in the universe. Therefore we have all the energy we need to reach lightspeed.

Contradiction anyone?

We use Einstein's velocity addition formula.  With it, a constant acceleration will never reach the speed of light.

with an infinite amount of energy it will. 

It will take infinite time to reach speed of light, even if there's infinite energy.

It will take infinite time to reach speed of light, even if there's infinite energy.

can i see your calculation?

Time is only infinite because time slows down towards the speed of light. It is only infinite to the observer. We experience no change in time (in our own environment) if the earth is travelling at speed of light.

How long does it take a function to reach its asymptote?

Same here for velocity, assuming the asymptote is the speed of light.

Special Relativity forbids an object from ever reaching the speed of light.

w =     (u + v)     
        (1 + u*v/c²)



Where w is the new velocity, u (or 0m/s in this case) is the initial velocity, and v is the final velocity (or 9.8m/s for 1 second from universal acceleration). Now, after you find the w, plug it into the u on the new equation. Keep doing it until you reach 299,792,458m/s. Good luck.

Fair enough.

But it can be that with an infinite amount of energy, an object can travel at the speed of light BUT it would require infinite time with any finite acceleration, or infinite acceleration for a finite amount of time.

But anyways, i still believe acceleration will slow down.

(And before i go to bed, i'd like to point out the human brain cannot process infinity... it's just too...unimaginable! lol) So whether your right or i am, we still really haven't got a clue what's going on! 

But it can be that with an infinite amount of energy, an object can travel at the speed of light BUT it would require infinite time with any finite acceleration, or infinite acceleration for a finite amount of time.

Uh, ok.

But anyways, i still believe acceleration will slow down.

The acceleration will decrease, just not in our frame of reference.

(And before i go to bed, i'd like to point out the human brain cannot process infinity... it's just too...unimaginable! lol) So whether your right or i am, we still really haven't got a clue what's going on! 

I've got a clue that I am right. 

Approaching speeds close to that of the speed of light will make the Earth itself increase in mass.

Again, not in our frame of reference.

Thus, more energy will be needed to keep the acceleration constant.
Now where is this infinite supply of energy at?

Why is the energy infinite?

The energy may run out at any time John.

The energy may run out at any time John.

Exactly.

Quote from: Username on December 04, 2007, 04:53:26 AM

The energy may run out at any time John.

Exactly.

what happens when it does?

Quote from: divito the truthist on December 04, 2007, 04:58:18 AM

Quote from: Username on December 04, 2007, 04:53:26 AM

The energy may run out at any time John.

Exactly.

what happens when it does?

It will be very unpleasant.

what happens when it does?

Won't be very good I imagine. All depends on what relies on the power and such.

If I remember correctly, acceleration curves spacetime in the same/similar way to gravitation, if the entire universe is accelerating, then it must be accelerating through spacetime to create the effect we know as gravity, so the universe must be a construct that moves through an external fabric of spacetime which is infinite/loops back on itself. If the fabric were to move with the universe, there would be no relative motion so no gravitational effect.

Perhaps the FE universe travels around a torus of spacetime??

Quote from: paradiselost on December 04, 2007, 04:59:23 AM

what happens when it does?

Won't be very good I imagine. All depends on what relies on the power and such.

That is the day in which the elder one awakens.

That is the day in which the elder one awakens.

Huh? That's not in response to my comment is it?

No, sorry.  Fixed

The energy may run out at any time John.

Yes I know that. Thats why I said "Suppose there is an infinite amount of energy"

I was giving the FE'ers something that would back their argument up.

If I remember correctly, acceleration curves spacetime in the same/similar way to gravitation, if the entire universe is accelerating, then it must be accelerating through spacetime to create the effect we know as gravity, so the universe must be a construct that moves through an external fabric of spacetime which is infinite/loops back on itself. If the fabric were to move with the universe, there would be no relative motion so no gravitational effect.

How do you know the external fabric of space time loops back on itself? Are you assuming the curvature of the universe?

Sorry, missed that post.

Quote from: Username on December 04, 2007, 04:53:26 AM

The energy may run out at any time John.

Yes I know that. Thats why I said "Suppose there is an infinite amount of energy"

I was giving the FE'ers something that would back their argument up.

That doesn't really back it up or not.  If anything it seems to be against the commonly held belief about the amount of energy.

no.

To maintain a constant acceleration we need energy do we not?

If we do not have an infinite amount of energy we'll stop accelerating.

If we stop accelerating, well then, goodbye gravity...


For the FE'er's idea of gravity, infinite energy is a must. Your saying it is against our belief of energy, so I'm assuming you believe in a round earth? As what I have given you is a contradiction.

no.

To maintain a constant acceleration we need energy do we not?

If we do not have an infinite amount of energy we'll stop accelerating.

If we stop accelerating, well then, goodbye gravity...


For the FE'er's idea of gravity, infinite energy is a must. Your saying it is against our belief of energy, so I'm assuming you believe in a round earth? As what I have given you is a contradiction.

No, I am saying the energy may run out at any moment and then - goodbye gravitation.

And 6 billion people will just float away from the surface of Earth. Judgment day indeed.