- 2103
- Not what time you think? Everything you see around you that is
happening "now" has actually occurred a few nanoseconds earlier. The light takes time to reach you just as the
sound takes time to reach you. A moving
person will experience shorter time duration than a stationary person. The Earth orbits the Sun because it is
continuously "falling" in space-time.
-
-
-
- --------------------------- 2103 -
Not what time you think?
-
-
Time is so fundamental we take it all for granted. It flows along uniformly and independently of
everything else in perfect consistency from past to present to future. The past is fixed and the future has not
happened yet. Turns out that is all an
approximation mistaken by our own limited perspectives.
-
-
When we dig deeper into the science of time we find a complex erection
of structures and layers that we don't see with our limited senses. Here are
some examples of what is really happening with" time":
-
- A
moving person will experience shorter time duration than a stationary
person. The moving person will count a
fewer number of clicks on their clock. Time has a contraction with motion.
Because everything in the Universe is in motion every place in the Universe is experiencing
a different time.
-
-
The time differences not only depend on your motion it also depends on
gravity, your proximity to masses will change time as well.
-
-
Everything you see that is happening "now" has actually occurred
a few nanoseconds earlier. The light takes
time to reach you just as the sound takes time to reach you. The sound takes milliseconds and the light
takes nanoseconds but both have occurred at an earlier times.
-
-
For the light that came from our closest exoplanet, Proxima B, what you
see actually occurred four years earlier.
Everything you see is now four years older at the time you see it.
-
- Happening
now has no accurate meaning. Now cannot be in the future. That makes no sense. The notion in the present , and now, has
meaning only to things close to you. Not
to anything that is far away. Our "present"
is but a small bubble around us.
-
-
The size of the bubble depends on how precise you determine the time to
be. If you measure time intervals in
milliseconds the bubble can extend to thousands of miles. If defined by nanoseconds it only extends a few feet. We humans can distinguish only tenths of a
second, that's our bubble.
-
- The "present" is that interval
between past and future. It varies
depending on where you are and how fast you are moving. Strange as it is there is no world without
time.
-
-
Time passes faster at higher elevations.
Where there is less gravity.
Precise clocks in the laboratories can actually measure this. People at
lower elevations simply experience less time because gravity is stronger at lower
elevations.
-
- The Earth orbits the Sun because it is continuously
"falling" in space-time.
-
-
Mass slows down time around itself.
If things fall it is of the effect of slowing of time. Time runs more slowly at our feet than at our
heads.
-
-
Time is slowed down by mass. Time
is slowed down by motion. Anyone in
motion ages less quickly.
-
-
Albert Einstein actually got to this conclusion long before it could be
measured. It was actually in James Clerk
Maxwell's equations for electricity and magnetism that started t he search.. Maxwell's equations change with our
velocity. It took Einstein's genius to
figure out the significance of this strange result. At the time ," time" was thought to
be a constant, not a variable.
-
- Einstein's
genius changed our whole concept of our Universe because he made time the variable,
not the constant.
-
-
Science can measure these time differences with motion and gravity. Gravity is due to the warping of
space-time. Science is now trying to
measure this warping of space-time that is passing through Earth as gravitational
waves. Large masses like colliding Blackholes
should create ripples in space-time that we can detect using light interferometers.
-
-
Einstein's Theory has passed every test so far. His theory says that a mass bends space-time
to create a gravitational well. Light
will follow a curved path round the edges of this well. Light travelling out of a gravity well is
stretched, it gets redder. Time slows as
gravity gets stronger. When gravity gets the size of a Blackhole it rips a hole
in the fabric of space-time.
-
-
The Blackhole at the center of our Milky Way Galaxy is 4,000,000 times the
mass of the Sun. But, it is only
15,000,000 miles in diameter. It would
fit well inside the orbit of Mercury. If
the Blackhole were only 10 times the Solar Mass it would be only 37 miles in
diameter. A Blackhole the mass of the
Earth would be the size of a marble.
-
- An Earth size Blackhole would have a
gravity force 3,000,000,000 times the gravity we experience on the Earth's
surface. The question is does Relativity
stop working when we reach these conditions around a Blackhole? Does time stop as well?
-
-
To answer some of these questions science is trying to detect gravitational
waves caused by the acceleration of massive objects. These waves propagate at the speed of light. Scientific interferometers using interfering
laser beams are just beginning to detect these waves. The interference pattern they detect are
changes as small as 1/10,000th the width of a proton.
-
Gravitational waves may reveal laws of
physics beyond Relativity. Does a
Graviton carry gravity like a photon carries light? We are testing the theory of Relativity at
large scale distances using gravity waves.
And, we are testing the Theory at the highest energy quantum level as
well.
-
- Both ends of the spectrum are windows to new physics.
We are well beyond watching the apple
fall from the tree. Isaac Newton used that observation to define gravity with equations
that got us to the moon and back. But, we needed Einstein's equations to get GPS
systems to work.
-
- Lord knows what we will discover next. Stay tuned.
-
----------------------------------------------------------------------------------------
----- Comments appreciated and Pass it on to
whomever is interested. ----
---
Some reviews are at:
--------------
http://jdetrick.blogspot.com -----
--
email feedback, corrections, request for copies or Index of all reviews
--------------------- Friday, September 14,
2018 -------------------------
-----------------------------------------------------------------------------------------
No comments:
Post a Comment