The relativistic Hall effect describing objects rotating at speeds comparable with the speed of light has been reported.

The work by Konstantin Bliokh and Franco Nori at RIKEN in Japan, NAS in Ukraine, and the University of Michigan in the US sheds light on aspects of fundamental physics, and you can demonstrate some aspects of this with your mobile phone.

As any cameraman knows, recording a fast rotating object such as a fan using a “rolling shutter” camera, like those found on mobile phones, results in weird distortions. See for example:

Less widely understood — until now — is the link between these distortions and some of the landmark theories in physics, namely Einstein’s relativity and the Hall effect.Hall effects describe the interplay of rotation and linear motion in objects. There are already a number of manifestations of the Hall effect, including classical, quantum, and ‘spin-based’.

Relativity describes effects that arise when an object approaches the speed of light. This study considered the Hall effect as arising naturally under special relativity conditions without any external ﬁelds. The researchers found that a relativistic treatment of rotating bodies and quantum wave systems with angular momentum results in deformations and a shift in the geometric centre. The distortions have parallels with those found when recording a rotating object with a rolling shutter camera.

“Our description makes relativistic and quantum aspects of angular momentum fully consistent with each other,” conclude Bliokh and Nori.

This relativistic approach may find applications over a wide range of length scales including elementary spinning particles, classical light and, even rotating black holes.

**Explore further:**
A Newtonian system that mimics the baldness of rotating black holes

**More information:**
Konstantin Y. Bliokh and Franco Nori, Relativistic Hall Effect: *Phys. Rev. Lett.* 108, 120403 (2012).

DOI: 10.1103/PhysRevLett.108.120403

## julianpenrod

## Anorion

you sure are aware that Einstein relativity is used in calculation of position by GPS ? ;D

and that if they didnt include it, GPS precision would drift by /- 10 Km each day ? ;D

http://www.physic...will.cfm

http://www.astron...gps.html

## thermodynamics

## vacuum-mechanics

http://www.vacuum...mid=6=en

## julianpenrod

They say they use Einsteinian relativistic equartions in calculating GPS positions!

There is no proof provided that they use relativistic equations!

Just their saying something is true doesn't automatically make it true!

In the same way, thermodynamics cannot provide any actual, provable case of an experiment actually demonstrating Einsteinian relativity. Just because numbers flash on screens or blips move across screens in certain ways is not proof. In attacking the photographs of fairies in Cottingley, "debunkers" denounce people at the time of being so entracned by the infallibility of the camera that it couldn't tell a lie. This is the same attitude the gullible devotees of "science" have of the machines operated behind "laboratory" doors.

## MRBlizzard

arXiv:1205.3307 [pdf]

Spatio-temporal vortex beams and angular momentum

Konstantin Y Bliokh, Franco Nori

## InterPur

## Lurker2358

No it wouldn't, unless the designers are idiots.

All you need is reference beacons on the ground, preferably 4 non-coplanar reference points, with LOS to any one satellite and you can always get a perfectly accurate reference for the satellite's position. Do this for all satellites and then use them to ping the GPS devices. No relativity required at all.

With 4 points on the surface of a sphere, you can determine the exact direction and distance to a satellite using only classical physics. You don't even need doppler shift or anything like that, because there is only one possible correct configuration.