I send you a good paper that prove my transformation and my quantization of gravity is completely right and agreed completely also with Hafele-Keating. The Hafele–Keating experiment was a test of the theory of relativity. In October , Joseph C. Hafele, a physicist, and Richard E. Keating, an. I teach physics, and I love the Hafele-Keating experiment as a way to introduce relativity. Because the experiment has a lot of charisma, it’s cool to be able to.

Author: Baktilar Mikaran
Country: Grenada
Language: English (Spanish)
Genre: Science
Published (Last): 11 June 2006
Pages: 383
PDF File Size: 4.70 Mb
ePub File Size: 7.28 Mb
ISBN: 358-4-21197-612-4
Downloads: 13153
Price: Free* [*Free Regsitration Required]
Uploader: Kagakus

A Sphere of contradiction. Information about the copyright of the photo that appeared in Popular Mechanics. In his original paper on special relativity[6] Einstein suggested a possible test of the theory: Below the photos I’ve presented some of these items that might be of historical or pedagogical interest.

This photo is from Time Magazine, October 18,where it appeared with “AP” written above the upper right corner. If their motions were truly “relative”, then by the rules of SR both should arrive back at the starting point having experienced the same amount of time dilation in the same direction. In addition to the scientific papers published in Science[3] [4] there were several accounts published in the popular press and other publications, [9] [12] including one with a photo heading this article showing a cabin attendant checking her wristwatch while standing behind the instruments.

Physics > General Physics

The time lost on the eastbound train was 20X higher than that lost on the north and southbound trains. However, in all other directions it is off by up to 20x the predicted value. The hafepe difference was observable during the flight, before later analysis. InChou et al. Naval Observatory undertook an experiment to test time dilation. This observer is non-inertial since he is experiencing three different rotations with respect to the CMBr – diurnal, solar, and galactic.


Photos Hafele and Keating with clocks [ Full resolution ] This photo is from Time Magazine, October 18,where it appeared with “AP” written above the upper right corner.

Pierre Meystre and Marlan O. Thus in the context of physics, absolute motion must be understood to mean motion relative to the universe, and any wider or more abstract interpretation of the “absolute” must be denied. General relativity predicts an additional effect, in which an increase in gravitational potential due to altitude speeds the clocks up.

Hafele and Keating Experiment

If it was taken by a photographer as a work for hire, then it is c Hearst Corporation. Inexperimenters from the U. This effect, called time dilationhas been confirmed in many tests of special relativitysuch as the Ives—Stilwell experiment and experimental testing of kexting dilation.

An overall difference of Some have cited Max van Laue as discussing the effect after the proposal of Michelson inbefore Einstein was even known in terms of special relativity in I would be grateful to anyone who could e-mail me with any of the following:. All I currently know is where they were employed inthat Dr. The predicted difference was A group at the University of Maryland led by C. Thanks to Robert Nelson of the Satellite Engineering Research Corporation for pointing out this error and supplying the correct picture.

The Hafele—Keating experiment was a test of the theory of relativity. The problem encountered with measuring the difference between a surface clock and one on an aircraft is that neither location is really an inertial frame. It is a public-domain product of the U.

See ” On the Electrodynamics of Moving Bodies p. Hafele, an assistant professor of physics at Washington University in St. Naval Observatory technicians George Luther and Bill Dabney boarding a commercial plane with an atomic clock. Nowadays both gravitational and velocity effects are, for example, routinely incorporated keatjng the calculations used for the Global Positioning System.

Shown below is a drawing of our earth and sun moving through keatjng. The difference in the times compared to our hypothetical master clock would then be. The time difference expression should be valid, but in comparing the aircraft clock to the surface clock, we should find that it has fallen behind, so we can model that time difference by. This version is shown below: Around-the-World Atomic Clocks In OctoberHafele and Keating flew cesium beam atomic clocks around the world twice on regularly hafeele commercial airline flights, once to the East and once to the West.


In the course of digging up the photos, I ended up compiling some other links and information. Lemmon for the television show Genius by Stephen Hawking.

Five flights were carried out, each of 15 hours duration. A reenactment of the original experiment by the National Physical Laboratory took place in on the 25th anniversary of the original experiment, using more precise atomic clocks during a flight from London to Washington, D.

From the actual flight paths of each trip, the theory predicted that the flying clocks, compared with reference clocks at the U. Gilmore, “After 63 years, why are they still testing Einstein? In OctoberJoseph C.

Historical photos and information about the Hafele-Keating and Alley experiments

This photo, from the same era as the Hafele-Keating experiment, shows U. An online listing of errata for early editions of the textbook by Hartle haffle that the photo below of Luther and Dabney had been published with an erroneous caption describing them as Hafele and Keating.

I’ve obtained and scanned copies some of these and posted them here.

By using this site, you agree to the Terms of Use and Privacy Policy. In OctoberJoseph C.