Re: Can inverse gravity waves cancel out Earth's gravity in selected areas?


TrekJunky wrote:
Hello Sue,

I would like to answer you question about how I would measure the mass
of light. I would like to approach it by stating a few facts to see if
you agree with them:

Light has no mass, or if it has some it is beyond any measurement
accuracy.

1) Solar Sail space ships are propelled by the pressure of light on the
"sails" not solar wind(subatomic particles) as some might think.

That is not your usual notion of pressure.

2) Light can exert pressure.

Heated gas can do that also. That does not mean there is an external
force acting on the gas molecules. It is the result of kinetic energy
exchange of the particles in Brownian motion for work.

3) F(pressure)=ma [force=mass times accelleration]

Force is not pressure. The law you stated applies in the case of
external impressed or inertial forces only

4) Therefore light has mass that can be measured indirectly by
measuring the force acting on the Solar Sail because the accelleration
is the speed of light (C).

Acceleration is not speed but the time rate of change of speed dv/dt. c
is constant and dc/dt = 0 in vaccum.

Please tell me where I am going wrong. Thanks!!!

In every count.


Mike



Cane Kostovski AKA TrekJunky

Sue... wrote:
TrekJunky wrote:
Hello Sue,

For an object to have momentum (inertia), it would have to have mass.

Light has angular momemtum but no mass.
An attraction to all the universe is all that is necessary for
inierial.
http://chaos.fullerton.edu/~jimw/general/inertia/index.htm

I
have an amature knowledge of light being a wave of energy and at the
same time have a measurable amount of mass.

How will you measure it ?

I don't understand the
prevoius phrase, but accept it as fact. And if it is true that light
has mass and intertia, it must exert a tiny bit of gravity. It's
gravity affects other mass so I agree with your statement below even
though the effect is minimal in the situation below. Thanks!!!!


Ya weclomed.

Sue...

TrekJunky


Sue... wrote:
TrekJunky wrote:
Inverse sound waves cancel each other out, so why can't there be a
gravity equivalent?

TrekJunky

<< Principle of Operation: Fig 1b shows a more detailed look at
how an optical trap works. The basic principle behind optical
tweezers is the momentum transfer associated with bending light.
Light carries momentum that is proportional to its energy and in the
direction of propagation. Any change in the direction of light, by
reflection or refraction, will result in a change of the momentum of
the light. If an object bends the light, changing its momentum,
conservation of momentum requires that the object must undergo
an equal and opposite momentum change. This gives rise to a force
acting on the object. >>
http://www.stanford.edu/group/blocklab/Optical%20Tweezers%20Introduction.htm

http://www.citebase.org/cgi-bin/citations?id=oai:arXiv.org:physics/0107015
http://www.chem.purdue.edu/gchelp/liquids/inddip.html
http://www.mypage.bluewin.ch/Bizarre/GRAV.htm
http://www.esa.int/SPECIALS/GSP/SEM0L6OVGJE_0.html
http://www.research.ibm.com/grape/grape_ewald.htm

Sue...

.

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