Space can be likened to a string of pearls. The true measurement
of distance is determined by the distance between the pearls. But
we cannot see nor measure this true distance. We measure distance
with our rulers and yardsticks which always stay the same no matter
how space is changing
But distance and space does shrink and expand depending on
how fast you are traveling and your ruler changes right along with
it. And what determines how fast you are traveling? Your velocity...
But Einstein said your ruler (distance) and your time (the
rate at which time passes) shrink and slow depending on how fast you
go. To you, when you are moving faster, your ruler always measures
12 inches. But an outside watching you would see your ruler and your
space shrink more the faster you go.
In essence you will always think the string of pearls as
evenly spaced no matter what you do.
In reality if you start out slow, then go near the speed
of light and then slow down again your true space will crowd the pearls
closer together as you travel faster and then space them further out
again when you slow down.
Relativity does not just appear to an outsider that
your ruler and space have shrunk. They really have
Remember Einstein's twin example? One twin stays home and
the other travels into space at mear the speed of light? The passing
of time slows for the traveling twin and when he returns home his
brother has aged 100 years. The traveling twin slows
down time and crowds space together so he can travel great distances
in not a lot of time. The stay at home twin does not change his time
We are not aware that space is expanding or contracting because
our rulers and yardsticks are shrinking and expanding right along
with it. But light knows. Light always travels
at one rate of speed so when it encounters more distance it will squeeze
its wavelength. The fact that light gains more energy when coming
in at 90 degrees to our atmospher appears to indicate that it is traveling
a greater distance. Upon leaving (straight up) the opposite happens
and its wavelength is stretched. Evidently to determine true distance
and the real contours of space we must use light as a yardstick.
So how does the passing rate of time determine gravity? Time
slows down towards the center of any mass. More space gets packed
into a shorter distance. We are back to the string of pearls. They
become squeezed together as they get closer to earth. Because there
is in reality more distance then you can see (because time is slowing
down)... YOU MUST MOVE AT A FASTER RATE!
In a gravitational field your ruler is shrinking as you move
towards the center of a mass. More space is being packed into a smaller
and smaller distance. The outer space traveler changed space by using
energy to move faster. A gravitational field changes space by packing
more of it into a tighter and tighter distance. You are going a further
distance and must speed up. Your ruler shrinks and your time
slows down as you move through a greater and greater distance near
Can we "see" this? No. Our rulers shrink and expand
with space so we cannot determine the true size and shape of space.
In essence the space around our world is like a vanishing
More and more steps get packed into the same distance. More
and more space gets packed into the same time.
What happens when time slows down and packs more distance
in the same amount of space? You speed up- WITHOUT
DOING ANYTHING. It is not a force. Because more space
is packed into the same amount of time you are traveling further and
must speed up to do so.
On the one hand we move and space changes. On the other hand,
space changes and we move. That is all gravity is.
So why does space expand and contract? Why does time slow
down and speed up?
Let us begin with the fact that light always travels
at the same speed and particles are made of light.
Everything is made of light (or electromagnetic waves). Remember
the Big Bang?
When light gets caughts up in a circle (imagine a vortex),
it changes the rate at which time passes.
The center blue part of the light wave appears to travel
a shorter distance then the outer yellow part of the revolving, standing
light wave. But the entire wave must travel the same distance at the
same rate. Distance cannot be directly changed. Time cannot be directly
changed. There is only one variable that can change in order for it
to do this. The passing rate of time MUST slow down more and more
as you move towards the center so that distance is stretched as you
travel around the circle but squeezed as you travel straight in. Consequently
distance and time ARE changed but in an indirect way by the passing
rate of time slowing down.
Above you can see how an electron is created. When two pieces
of electromagnetic waves strike each other just right, they send each
other rotating in opposite directions somewhat like two little circular
vortexes. These are true point particles where the mass is totally
created by the slowing down of time and a changing space. As particles
accumulate and interact they warp the space around them more and more.
What are the implications of this? If gravity is not a force
but a warping of space where more space is squeezed with the slowing
down of time, could we warp space ourselves and cause gravity? Can
we slow down time more then it is slowed by gravity and "fall
up"? We already create artificial gravity by speeding up. Would
it be possible to create an artifical gravity field outside a vehicle
instead of in it? Could we do this by spinning an electromagnetic
wave around a saucer shaped vehicle? If we could control the rate
at which time is passing can we squeeze space and travel great distances
to reach the stars?