Re: geometry produce work
- From: shalayka@xxxxxxxxx
- Date: Wed, 27 Jun 2007 16:29:38 -0700
On Jun 27, 5:25 pm, shala...@xxxxxxxxx wrote:
On Jun 27, 4:53 pm, dudle <e6k8s...@xxxxxxxxxxxxxxxxxxxx> wrote:
if gravity is geometry, how come that geometry produce work?
geometry has no energy, nor gravity has energy, becus if
you want potential energy, you need first to invest that
energy in elevations and such
Please consider this:
Gravitational energy in released from the Earth out into space at a
certain rate over time. When these gravitons come into contact with
other energy (mass or light), they draw that energy toward the Earth.
This gravitational attraction rate near the surface of the Earth is
observed to be 9.81 m/s of acceleration per second "downward".
Because of this, an equal but opposite amount of work has to be
performed just to maintain a constant distance from the surface of the
Earth over time. ex: A hovercraft. To accelerate outward would take
even more work. ex: A rocket destined for outer space.
It might be good to look up all that you can on the escape velocity
equation.
- Shawn
Correction: The equal and opposite acceleration needed to counteract
gravitation is only the minimum required. That said, it can only be
assumed that a hovercraft is not perfectly efficient. Energy is spent
doing things other than maintaining the constant distance from the
Earth. ex: Vibrations in the skirt material, etc etc etc.
.
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