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Topic: Frame-dragging

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Frame-dragging - Wikipedia, the free encyclopedia Accelerational frame dragging is the similarly inevitable result of the general principle of relativity, applied to acceleration. Frame Dragging and Lense-Thirring Effect, General Relativity and Gravitation 36, 2257-2270, (2004). Although it arguably has equal theoretical legitimacy to the "rotational" effect, the difficulty of obtaining an experimental verification of the effect means that it receives much less discussion and is often omitted from articles on frame-dragging (but see Einstein, 1921). en.wikipedia.org /wiki/Frame_dragging   (1463 words)

PhysOrgForum Science, Physics and Technology Discussion Forums -> Frame Dragging Frame dragging in GR and increase of mass in SR could both be due to the interaction of particle fields and space/time fields. Furthermore, frame dragging is caused by the eventual movement of the aether with the movng mass. I believe that inertial frame dragging is the ability to accelerate an inertial frame of reference (freely falling body) using the gravitational influence of a nearby accelerating body of mass. forum.physorg.com /index.php?showtopic=591&st=15   (2345 words)

NORDTVEDT'S REMARKS ON GRAVITOMAGNETISM Frame dragging usually means that space per se (and anything that happens to be in it) is moved by the motion of a nearby object. Frame dragging is a clear Machian effect since rotation takes place with respect to the very distant matter in the universe. Detecting such frame dragging has motivated a half-billion dollar research effort spanning now many decades, known presently as "Gravity Probe B", a satellite with ultrasensitive gyroscopes soon to fly it is said. chaos.fullerton.edu /~jimw/general/inertia/nord.htm   (1458 words)

Visage 2 Bugs Dragging or magnifying (i.e., using a corner) of a frame should pop it to the top of the occlusion stack. Drag a map frame which is displaying a bitmapped map into a slide - the bitmap disappears. Double-clicking on the "label" of a frame should alternately clip it to the size of the label attachement and put it back to the last size it was before the last double-click. www.maya.com /visage/bugdir/visage2bugs.htm   (1661 words)

Spacetime, Curved Spacetime, and "Frame-Dragging" General relativity (1916) describes the laws of physics in all situations in general, whether the frame of reference is in uniform motion or is accelerating near a gravitational field. Simply stated,this principle asserts that all physical experiments operate identically whether operating in a free-falling frame of reference (e.g.,a free-falling elevator)or in a free-floating frame of reference virtually unaffected by gravity (e.g., an orbiting spacecraft). Special relativity (1905) refers to the laws of physics in a special situation- when a frame of reference is in uniform motion. www.geocities.com /genevievescu/Ozone/Page6.html   (854 words)

Inserting and Formatting Frames Dragging the frame when you have the handles will override the settings entered via the Format, Frame dialog window and change the Positions to units "From left" and units "From top". Frames give you a lot of control over where and how your text is displayed on the page. The red outline represents the space being referred to and the green outline is the position of the frame. www.ces.ncsu.edu /depts/ets/itaids/wp/017   (1502 words)

Lesson 1:Frames Drag the Outliner frame to a new location by putting the mouse pointer over the title bar, holding the left mouse button down, dragging the mouse to the desired location on the desktop, and releasing the mouse button. Frames in Visage can be moved on the desktop by dragging the frame via its title bar. Frames can be minimized to just their title by clicking the minimize frame control (with the green triangle in the lower left corner). www.maya.com /visage/base/docs/tutorial/3-frames.htm   (674 words)

A Touch of Gravity The measurable effect of frame dragging is to twist the axis of rotation of a spinning object near Earth slightly over time, with the predicted magnitude of the effect being roughly 42 milliarc-seconds per year. Frame dragging is a phenomenon that is created by massive spinning objects such as stars or, to a lesser extent, planets like Earth. One such effect is called “frame dragging,” and it is this effect that Gravity Probe B will measure. pr.caltech.edu /periodicals/Eands/articles/LXV3/gravity.html   (3513 words)

A Spin through Space-Time: Science News Online, Nov. 1, 2003 Frame dragging is expected to make each gyroscope's spin axis drift just 42 milliarc-seconds per year in the direction of Earth's rotation. GP-B is expected to measure frame dragging to an accuracy of 0.1 percent and geodetic precession to 0.0006 percent, or 6 parts per million. Yet the effects of frame dragging may prove enormous in deep space where spinning, ultradense concentrations of mass known as supermassive black holes may torque space-time vigorously enough to create the enormously powerful jets of matter and energy known as quasars (SN: 4/5/03, p. www.sciencenews.org /20031101/bob9.asp   (2078 words)

Gravitational frame-dragging is observed The phenomenon is sometimes called "frame dragging" since its source is the distortions of space-time caused by the rotating mass. Two groups of astronomers, one based in Rome (Luigi Stella, stella@coma.mporzio.astro.it) and one at MIT (Wei Cui, cui@space.mit.edu), now claim to have detected experimental evidence for this force in the form of subtle modulations in the x-ray signals coming from neutron stars and monitored by the Rossi X-Ray Timing Explorer (RXTE) satellite. www.phys.uni.torun.pl /~jkob/physnews97/node31.html   (143 words)

Description of a High-Accuracy Frame-Dragging Experiment Using an Unsupported Gyroscope in a Drag-Free Satellite See also The Search For Frame-Dragging by Clifford Will. In order for covariance (the laws of Physics are identical in all reference frames moving at constant velocity) to be true, every force must also have a magnetic analog. This is necessary so that the transformation equations from one moving frame to another can properly take into account the relative motion. www.dragfreesatellite.com /MG8_fd.html   (299 words)

Frame Dragging? Frame dragging should cause the accretion disk to precess if it does not coalign with the BH equatorial plane: thus it may produce direct observable effects. As such, they are excellent candidates to observe the theoretically predicted general relativistic effect of dragging of inertial reference frames around spinning black holes. With both the black hole spin and mass (about 7 solar masses) known, the expected (from theory) precession frequency of the inner portion of the accretion disk (where most soft X-rays come from) was calculated due to frame dragging. heasarc.gsfc.nasa.gov /docs/xte/Greatest_Hits/frame.html   (339 words)

Universe Today - Frame Dragging Confirmed "Frame dragging is like what happens if a bowling ball spins in a thick fluid such as molasses. An international team of NASA and university researchers has found the first direct evidence the Earth is dragging space and time around itself as it rotates. By carefully tracking the position of the LAGEOS and LAGEOS 2 satellites - beachball-sized spheres covered in mirrors - they discovered that their orbit is being shifted by about two metres a year by this dragging effect by the Earth's gravity, almost exactly what was predicted by Einstein. universetoday.com /am/publish/frame_dragging_confirmed.html?22102004   (902 words)

Bug ID: 4637338 MultiFrame problem and the default configuration and grayscale displays Dragging the frame from the vga monitor to the grayscales does nothing. The frame on the colour display is ok, but dragging it to the grayscales makes it black. If everthing works you should see 2 frames. bugs.sun.com /bugdatabase/view_bug.do?bug_id=4637338   (1492 words)

Paradoxes Resolved, Origins Illuminated - Frame Dragging An expensive satellite, Gravity Probe B, was launched earlier in the year for the main purpose of testing frame dragging. According to an article at http://www.space.com/scienceastronomy/warp_space_041020.html, Einstein's predicted "frame dragging" has been confirmed by a new study. It would take the form of "elysium dragging", which is mathematically similar. www.metaresearch.org /msgboard/topic.asp?TOPIC_ID=599   (247 words)

The Search for Frame-Dragging denotes the coefficient of frame dragging (1 in GR, The gravitomagnetic ``dragging of inertial frames'' by rotating matter has played a part in discussions about the meaning and usefulness of Mach's principle, in astrophysical models of jets near accreting, rotating black holes, and in proposals for testing alternative theories of gravity. All that was needed for a frame-dragging test at around a 10 percent level was a LAGEOS in an orbit of www.phys.lsu.edu /mog/mog10/node9.html   (1016 words)

chapter11.html Frames are best used when you want part of your page, such as a toolbar or a table of contents, to be visible the entire time the page is in the window--regardless of what kind of scrolling your visitors do. When you split a frame or drag a frame border, Dreamweaver translates the information about the position of the frame border into a height or width amount for each frame, in pixels or percent of the window. Note that the frame borders are not heavy; they've been turned off in the preset attributes of the layout. www.informit.com /content/images/0201702401/samplechapter/chapter11.html   (7546 words)

Frame Draggin And Grav Waves Frame dragging (aka Lens-Thirring effect) is not very noticeable in a body such Earth, but it must be quite important in a black hole. In concrete, in a Kerr black hole, there exists frame dragging in a zone called ergosphere, situated between the outer event horizon and the stationary limit. It's critical to suppress the Newtonian effects because they are huge compared to frame dragging effects. www.physicsforums.com /showthread.php?t=49103   (552 words)

Einstein Passes Another Test This is evidence for frame dragging because as the matter orbits the black hole, the space-time that is being dragged around the black hole drags the matter along with it. The phenomenon is distorting the orbit of hot, X-ray emitting gas near the black hole, causing the X-rays to peak at periods that match the frame dragging predictions of general relativity. This bizarre effect, called "frame dragging," is the first evidence to support a prediction made in 1918 using Einstein's Theory of Theory of Relativity. imagine.gsfc.nasa.gov /docs/features/news/07nov97.html   (660 words)

Confirmation The astronomers found evidence of frame dragging by examining radiation emitted when the gravitational pull of a dense neutron star sucks matter onto its surface. This effect, called frame dragging, is more noticeable if the object is very massive and very dense. The earth is much lighter and less dense than a neutron star, so the effects of the earth’s frame dragging are much more subtle than those of the neutron star’s frame dragging. skybooksusa.com /time-travel/physics/confirma.htm   (749 words)

Evidence found that spinning black holes drag spacetime - MIT News Office This phenomenon, known as frame-dragging, was first predicted in 1918 as a natural consequence of Einstein's general theory of relativity, which describes the effects of gravity on space and time. Cui points out that they cannot claim with absolute certainty that they have proven the presence of frame-dragging. The frequency at which it would wobble, based on their calculations, turned out to be the same frequency as the actual oscillations in intensity of the x-ray emissions previously measured by other researchers. web.mit.edu /newsoffice/1997/blackholes.html   (957 words)

Einstein’s frame-dragging - Deccan Herald The phenomenon, known as frame-dragging, was one of the last untested predictions of general relativity. Measuring Earth’s drag was difficult because it required separating the effect from the much larger effects of the Earth’s gravity. A key prediction of Albert Einstein’s general theory of relativity has been confirmed by an experiment showing that the Earth’s rotation drags the surrounding fabric of space-time along with it. www.deccanherald.com /deccanherald/dec062004/snt5.asp   (268 words)

MSN Encarta - Search Results - Frame Dragging Search for books about your topic, "Frame Dragging" Drag (aerodynamics), retarding force exerted on an object moving through the air. The general theory of relativity predicts that a massive rotating body will drag space and time around with it as it moves. encarta.msn.com /encnet/refpages/search.aspx?q=Frame+Dragging   (88 words)

Paradoxes Resolved, Origins Illuminated - Gravity Probe B The reality of space, mass and falling elevators is that frame dragging and geodetic precession is caused by the intrinsic spiraling of space itself first, not matter. Yes, frame dragging is a sort of elysium-dragging phenomenon. I think that GR expects the inertial frame to be dragged with Earth's rotation at full speed. www.metaresearch.org /msgboard/topic.asp?TOPIC_ID=515   (2152 words)

Re: space-time field The general effect of frame dragging seems to be that energy is robbed from objects orbiting around the frame dragger, so that the orbits slowly decay. Speculating, it seems like frame dragging effects should be noticeable in the center of a rotating object. The rotation of such a mass results in "frame dragging" or the Lense-Thirring effect. www.madsci.org /posts/archives/oct98/908818889.Ph.r.html   (381 words)

Frame-Dragging, the Geodetic Effect of Spacetime and the Sothic Cycle Number The Frame Dragging Effect and the Sothic Cycle Number In order to perceive this effect, it is shown that as the Earth rotates, the theoretical posit of the grid-plane or mesh of spacetime is twisted and dragged along by the rotating Earth, thereby creating a kind of whirlpool effect. However, it has also be said that W Lense and H. Thirring, in 1918, two years after Einstein proposed his general relativity, proposed that according to the theoretical propositions a rotating massive body should slowly drag space and time around it. www.earthmatrix.com /symmetry/frame_dragging_geodetic_effect.html   (1746 words)

Magic with Merlin: Just another plain Frame Because the title bar and other window decorations are now hidden, you can't rely on the underlying window management system to provide support for dragging the frame. The undecorated frame support is a result of an entry in Sun's bug database, bug ID 4038769 from March 1997, and frame zooming support was requested in August 1997 with bug ID I'll show you how to use both of these features in this article. Here's a complete example that hides the frame's decorations and then adds the window buttons for maximizing, normalizing, iconifying (minimizing), and closing the frame as plain AWT button components. www-106.ibm.com /developerworks/java/library/j-mer0717   (663 words)

Frame Dragging Astronomers found evidence to support frame dragging by observing a binary star system in which a normal star feeds the disk of accreting matter spiraling into the event horizon of a black hole. The astronomers calculated the oscillations being caused by frame dragging making the accretion disk precess. In November of 1997, astronomers using NASA's Rossi X-ray Timing Explorer (RXTE) spacecraft made a startling discovery: evidence that supports this effect known as frame dragging. www.rdrop.com /users/green/school/framdrag.htm   (207 words)

GENERAL RELATIVITY: CONFIRMATION OF FRAME-DRAGGING First analyzed by Joseph Lense and Hans Thirring, soon after Einstein published his general theory of relativity, the phenomenon is known as the "Lense-Thirring effect" -- or "frame-dragging", because the spin axes of ideal gyroscopes could be used to track the directions of coordinate axes in an inertial reference frame. If a frictionless gyroscope is placed near the flywheel's axis of rotation, the gyroscope's spin axis will be dragged along in the direction of the flywheel's rotation. However, if the gyroscope is placed near the flywheel's perimeter, its spin axis will be dragged in a direction opposite to the flywheel's rotation. scienceweek.com /2004/sa041126-1.htm   (1124 words)

NASA Observatorium Observation of the Week Frame dragging is expected to occur not just in the vicinity of rotating black holes. If confirmed by additional observations and experiments, frame dragging will be the fourth affirmative test of Einstein's general theory of relativity. This dragging was predicted in 1918 by two Austrian physicists, Joseph Lense and Hans Thirring, based on Einstein's general theory of relativity. observe.arc.nasa.gov /nasa/ootw/1997/ootw_971203/ob971203.html   (507 words)

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