What if everyone missed the obvious?

Discussion in 'Physics & Math' started by gentle, Aug 22, 2004.

  1. gentle Registered Senior Member

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    90
    Here is one of many examples of observation. Read the simple Nasa Saturn studies with the rings too. CNN.com and type in Saturn and Gravity



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    Theory says the two newfound neutron stars are already warping the fabric of space, generating gravitational waves that propagate like ripples on a pond.







    As the two dense objects collide, they should create an intense burst of gravitational radiation before merging into a black hole.




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    Neutron Star Collisions Common, Study Suggests
    By Robert Roy Britt
    Senior Science Writer
    posted: 03:04 pm ET
    03 December 2003



    Astronomers have discovered two neutron stars orbiting each other once every 2.4 hours and spiraling inward toward an eventual dramatic collision. The finding suggest such intense events are far more common than was thought.

    If the work is correct, astronomers could by the end of the decade detect elusive "gravitational waves," which should be spawned in the final seconds prior to the mighty mergers.

    Scientists call these emissions -- which have yet to be directly detected -- the theoretical "death chirp" of a neutron-star pair. Similar emissions are expected in black hole mergers.

    Detecting gravitational radiation, as it is also called, would be an important confirmation of Einstein's theory of general relativity.

    Already dead

    A neutron star is already stellar corpse. It is formed when an aged star explodes and as much material as what's in our Sun collapses into a region the size of a city. A teaspoonful, brought to Earth, would weigh a billion tons or so. Neutron stars are stuffed almost entirely with neutrons, subatomic particles that can huddle extremely close together.

    Only six neutron-star pairs, called binary systems, are now known.

    Previous studies of other pairs have shown that these exotic dance teams spiral toward each other and must eventually crash and unite, possibly becoming a black hole. Einstein theorized that space-warping gravitational waves -- caused by two accelerated masses in orbit -- are the reason for this orbital decay.

    But the gravitational radiation generated during orbital decay is nowhere near as intense, or detectable, as what a merger would generate.

    Another pair of known neutron stars is destined for calamity in 320 million years, forming the limited basis for estimates of how often the events occur.

    The newfound duo will hit in a mere 85 million years. That's forever on a human time scale, but there was an interesting twist in the observations, made by an international team of astronomers.

    Many more out there

    Binary neutron star systems are found primarily by radio searches. The pair just detected is relatively nearby -- less than 2,000 light-years away -- yet has very faint radio emissions compared to others. That suggests to the researchers that there probably are a lot more pairs around that previously assumed, many undiscovered mergers-in-the-making.

    Based on assumptions about other pairs that must be out there, astronomers had calculated that neutron star mergers might take place once every decade or two within a 60-million light-year radius of Earth, a span that includes our galaxy and a few neighbors. It is also the distance to which ground-based gravitational wave observatories expect to be able to detect the events, if Einstein's theories are right.

    With the new data, theorists think the events might take place once every year or two.

    The discovery will be detailed in the Dec. 4 issue of the journal Nature. Marta Burgay, a Ph.D. student at the University of Bologna, is the lead author.

    "If gravitational waves can be expected more frequently than previously thought, that is exciting news indeed," said University of Amsterdam's E.P.J. van den Heuvel, who wrote an analysis of the finding for the journal.

    Van den Heuvel cautions, however, that error margins for the estimates are sizeable since so few binary neutron star systems are known.

    Death chirp

    The neutron star pair was detected with the CSIRO Parkes radio telescope in Australia. One of the objects, named PSR J0737-3039, pulsates due to its own rapid rate of spin about its axis. Despite their 2.4-hour orbit, the two objects are about twice as far apart as Earth and the Moon.

    As Einstein's theory has it, any pair of neutron stars should begin a detectable death chirp moments before they merge.

    "One minute before the stars merge, their orbit has shrunk to a size of only a few hundred kilometers [miles], and the two neutron stars move around each other some 30 times each second, producing strong gravitational waves with that same frequency (30 hertz)," van den Heuvel writes. "In the last minute before the merger, the orbital frequency increases rapidly, from 30 to 1,000 times per second; the strength of the gravitational wave emission increases simultaneously."

    When the waves reach Earth, their effect would be to displace the oceans by an amount roughly 10 times the diameter of an atomic nucleus, according to van den Heuvel.

    Listening intently

    There are several projects around the world designed to detect these otherwise unnoticed waves. Among the most prominent is the Laser Interferometer Gravitational Wave Observatory (LIGO). Output from a merger of objects like those just found would be detectable, said Nicolo D'Amico, who led the new observations out of the Cagliari Astronomical Observatory in Sardinia.

    The observatories must be very sensitive.

    Gravitational waves are said to be similar to light waves. Both propagate through space at different frequencies, radiating outward like ripples on a pond. But gravitational radiation is much weaker than electromagnetic radiation, which includes light, radio waves and X-rays. This is because the fundamental force of gravity is weaker than the fundamental electromagnetic force.

    LIGO and its competitors also expect to monitor similar but more robust gravitational emissions from the mergers of black holes. The detectors are just coming online and being fine-tuned, a years-long process.

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  3. gentle Registered Senior Member

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    90
    seeing reality

    Run back and forth in front of a speaker and tell me sound isn't relative to motion.
    Get a dental xray taken and move durning it or an MRI and move and tell me that it wasn't relative to motion. All actions of radiation are relative to motion. Specifically they are relative to the point of origin, they are a mass to energy transfer and they are a wave. Einstein said time and space are relative they are warped. What he meant to say and with respect I clairfy that time and space are actions of the same qualities that all radiation posesses. Point of origin mass to energy transfer in wave form. I can't help it that they all took a wrong turn 100 years ago. I would have rather read this stuff in a book. I never dreamed it would be me explaining to the world the wrong turn. God has got to be cracking up. Mass radiates into the gravitational wave this is a natural process. Time and length (space) are resulting actions of this process. Gravitational wave sychronization is the third action and it is what brings masses together. Read my full paper this is nothing just wait. Why does everyone have a problem with this if the so called warpage of time and space actually follow the rules of radiation? I think you all are crazy. I feel like the one fly that sees dog crap for what it truely is and can't believe the rest of the flies are still landing on it.
     
    Last edited: Aug 26, 2004
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  5. James R Just this guy, you know? Staff Member

    Messages:
    39,426
    gentle:

    What theory? You haven't shown us or referred us to any theory of yours. Do you really have one?
     
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  7. gentle Registered Senior Member

    Messages:
    90
    okay

    F=MA
    FORCE (is constant)=
    MASS (decreases as it turns into the gravitational wave creating the actions of time, space and gravitational wave synchronization, ie gravity.)
    times
    ACCELERATION increases as the remaining smaller mass has the same force.
    Mass(potential) energy changes into the gravitational wave ( kenetic) energy. this process creates time and space. Here is a little clear thought the theory is long and it won't fit here. E-mail anyone?
     
    Last edited: Aug 26, 2004
  8. HallsofIvy Registered Senior Member

    Messages:
    307
    You started this by telling us that you had this new theory that based everything on gravity waves. When I said I thought it was a mistake to base everything on something that had never been detected, you asserted, very definitely, that gravity waves HAD been detected. When I, and a few others, asked you to post evidence that gravity waves had been detected, you posted the a long excerpt that contained ONE statement about detecting gravity waves(copied from your post):

    'If the work is correct, astronomers could by the end of the decade detect elusive "gravitational waves," '

    Do you understand that that says clearly that gravity waves have NOT been detected?
    The one
     
  9. gentle Registered Senior Member

    Messages:
    90
    satern

    Look at the binary neuton star studies. Google! Look at the recent Saturn's rings and moons observations. cnn and Nasa. Or do what ever you want it's there for you to see.
     
    Last edited: Aug 27, 2004
  10. gentle Registered Senior Member

    Messages:
    90
    Gravitational waves and the weber bar

    ve



    "Gravitational waves are predicted by the theory of general relativity. By analogy to electromagnetic waves, which are produced when a charged particle is accelerated, gravitational waves should occur when mass is accelerated. The predicted effect is quite small. Gravitational waves have been observed indirectly from several projects since the 1960s using what is referred to as the Weber bar. Weber was the first scientist to make one of these in the 1960s. The Weber bar is essentially a large cylinder of aluminum that is super-cooled under vacuum. When a gravitational wave hit it, it makes the bar vibrate or "ring" very slightly at its fundamental frequency. By having two bars separated thousands of miles away, you can subtract out the Earth-based vibrations to record only the waves coming from space. The experiment only gives the total energy of the waves and the time they occurred; there is no way to tell from this type of instrument the energy of each graviton and the number of quanta, or the direction they are coming from.

    Weber's instrument observed high energies of gravitational waves and prompted other groups to develop the same instrument. Weber's results have not been confirmed by these independent measurements. In the early 1970s, a group in Japan built a Weber-type gravitational wave detector with a natural frequency that corresponded to the frequency of the Crab Nebula pulsar. They claim to have observed vibrations that were several orders of magnitude higher than were theoretically predicted. Theoretical calculations of the gravitational radiation emitted by typically expected sources show that they are much too weak for Weber bars to detect.

    The binary pulsar PSR 1913+16 (a pair of neutron stars) exhibits a small but steady loss of orbital energy, which may be the first demonstration of gravitational waves. Several new types of gravitational wave detectors are being developed. One is a high-frequency clock which is mounted in a satellite and launched far from Earth. When a gravitational wave hits the satellite, the clock signal is Doppler shifted by the gravitational wave and the shift can be picked up back at Earth. If three or more satellites are used, the direction of the gravitation wave could be known. Another type of detector currently under construction is LIGO.

    Gravitational waves can be described by tensor spherical harmonics."

    What else can I show all of you? All forms of relativity have to be wave dependent it is a logical and consistant deduction and there is no reason to expect time and space to be different.
     
    Last edited: Aug 28, 2004
  11. gentle Registered Senior Member

    Messages:
    90
    The force of the big bang has never stoped or deminished. F=ma obvious .If mass is transfering energy to gravitational waves then the resulting mass is losing energy and condensing. The Universe is accelerating at an increased rate and matter clumps as a result of the energy transfer. This is basic elementary physics and I believe this is the fundemental missing link.
     

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