the electromagnetic force from an electromagnet is determined by the current

through its field coil and the velocity of the electrons of this current in the magnet wire.

A c shaped electromagnet pulls with both of its magnetic poles pulls on an iron bar

with a force F. This magnetic force is:

F=u U L L I I ,

where L is the length of the wire of the field coil, I the current though this wire of the coil,

the u is electromagnetic permeabilty of the iron bar and U is the electromagnetic permeability

of the electromagnet's iron c shaped core.

Can make the velocity v part of the equation. The equation becomes:

F= u U L L I I =u U L I v.

The velocity v=V where V is the electric voltage accross the coil. The volage V

acceleratres the electrons to velocity v. The equation becomes:

F=u U L L I I=u U L I V.

These equation are not yet accurate, but help explain the relationships

between I , v and F.

If the velocity v is increased more electrons

flow through the coil wire in a given time. This increased in electron

volume flow should have an affect on the electromagnetic field intensity B

from the electromagnet. Pulling force F should be proportional to B.

Similarly for particles, when the eletromagnetic field intensity B increases from a particles as its

velocities v increases, the gravitational field intensity g between the charged particles should reduce.

This causes the particles to be pushed together by the gravity force caused by the magnetic force.

The greater gravitational field intensity outside the magnetic field pushes the charged particles towards each other.

When the gravitational field density g reduces, the particle losses weight and the speed of light c

increases to speed x in the field. A mass between attracting unlike magnetic poles loss weight. A mass

between like magnetic poles that repel each other gains weight because gravitatinal field intensity g

has increased in the magnetic bubbles. Then the speed

of light in this magnetic bubble of attracting magnetic poles may be:

x=c/g=c (B^0.5)=c (v^.0.5).

The field intensity B in each particle of a space craft form a warp drive bubble around each of them

where the speed of light

x.>c, where c is the speed of light of a stationary particle. When the space craft's velocity exceeds x, the

space craft may travel backwards in time.

The magnetic field intensity B from a particle like an electron in a coil wire or a space craft seems

also to depend on a paticles velocity v. Increasing B can reduce g and so increase c to x.

Then increasing the spacecraft's flight velocity to behond x , may cause the space craft

to go backwards in time. Such a time machine has not been build yet, but the above ideas and observations

may help develop a time machine design.

Leonard Belfroy,

Calgary,

March 29, 2003.