🚀 go-pugleaf

The gravity business is absurd. Everyone knows that the earth doubles in
size every 19.2 minutes and what we perceive as gravity is meerly the
surface of the earth rushing up to meet out feet. Since all the objects in
the Universe are doubling and moving away from us at related speeds, it is
not possible to detect. The universe is expanding, the objects in it are
expanding..... Gravity is is a myth.


Nick Harris <n...@ecs.soton.ac.uk> wrote in article
<58r8vm$9...@wapping.ecs.soton.ac.uk>...
> 
> >You're nearly right. Acceleration actually just means a change in 
> >one's velocity, direction is integral to velocity.
> >While we are not actually accelerating towards the earth at 9.8m/s^2
> >(m/s is a measure of velocity not acceleration). The gravity we feel
> >is a force that would cause an acceleration of 9.8m/s^2 if we
> >were allowed to fall.
> >
> >The acceleration due to gravity is independant of mass.
> >
> >Barry.
> 
> Acceleration is rate of change of velocity, not change in velocity.
> F=ma. You are being pulled with a force F towards the centre of the earth

> (gravity) This is why you don't float away. The ground you are standing 
> on is exerting a balancing force upwards, which is why you don't sink to 
> the centre of the earth. You can see the effect of this balancing force 
> if you stand on, say, a trampoline. When you stand on the trampoline, 
> gravity pulls you towards the centre of the earth. At first the 
> trampoline allows this and you move towards the ground. This stretches 
> the springs at the edge, which try and move back to their origianl length

> with a force given by Hookes Law. Eventually an equilibrium is reached 
> where the Hookes Law (Spring) force is balanced by the gravity force, and

> you stop moving. Heavier people cause the trampoline to sag more (the m 
> in F=ma). So reconsidering the F=ma bit, you can see that while there is 
> a net force on a body there will be an acceleration (if you jump out of 
> an aeroplane, there is a large net force until you reach terminal 
> velocity where gravity is balanced by friction- hence you plummet). If 
> there is no net force then there is no acceleration -see the discussion 
> about balancing (or reaction) forces above.
> 
> Nick
> 
>