Lengths on rotating platforms
Angelo Tartaglia
Abstract
The paper treats the issue of the length of a rotating circumference as seen from on board the moving disk and from an inertial reference frame. It is shown that, properly defining a measuring process, the result is in both cases 2piR thus dissolving the Ehrenfest paradox. The same holds good when considering that, for the rotating observer, the perceived radius coincides with the curvature radius of a space-time helix and a complete round trip corresponds to an angle which differs from the one seen by the inertial observer. The apparent contradiction with the Lorentz contraction is discussed.
Create a lesson
Related papers
Experiments on an airfoil with adjustable pitch and heave under transonic buffet leading to lock-in coupling
Cédric Themiot, Vincent Brion, Arnaud Lepage
On some nonlinear extensions to Maxwell's electrodynamics
Bertrand Berche, Ernesto Medina
On-Chip Shaping of Surface Acoustic Waves via Continuous Diffractive Modulation
Yuanpeng Ma, Yang Zhao, Shangyang Chen et al.
A Shape-Preserving Shell Theorem
Penelope Messinger, Stephany M. Rodriguez, Trung V. Phan
The dual-array RopeComb: a guide-balanced transmission with synthesisable rising mechanical advantage for impedance-matched launch
Rami N. Mahdi
Automated Sailboat Navigation using Controllabilty-Aware Nonlinear Model Predicitive Control under Stochastic Winds
Junzhuo Wu, Ya-Jun J Pan, Chao Shen et al.