Campaign to change UK clocks winds on
- Gradient clock synchronization. Fan, Rui; Lynch, Nancy // Distributed Computing;Mar2006, Vol. 18 Issue 4, p255
We introduce the distributed gradientclock synchronization problem. As in traditional distributed clock synchronization, we consider a network of nodes equipped with hardware clocks with bounded drift. Nodes compute logical clock values based on their hardware clocks and message exchanges, and...
- Lights, camera... anyone got the right time? Aron, Jacob // New Scientist;7/21/2012, Vol. 215 Issue 2874, p22
The article looks at research by computer scientist Zhenjiang Li and team into the synchronization of electronic device internal clocks using the cyclic flicker of fluorescent lights due to alternating electrical currents.
- Note on Clock Synchronization and Edwards Transformations. Kosinski, Piotr // Foundations of Physics Letters;Aug2006, Vol. 19 Issue 4, p389
Edwards transformations relating inertial frames with arbitrary clock synchronization are reviewed and put in more general setting. Their group-theoretical context is described.
- Antiphase and in-phase synchronization of nonlinear oscillators: The Huygens’s clocks system. Dilão, Rui // Chaos;Jun2009, Vol. 19 Issue 2, p023118
We introduce an interaction mechanism between oscillators leading to exact antiphase and in-phase synchronization. This mechanism is applied to the coupling between two nonlinear oscillators with a limit cycle in phase space, leading to a simple justification of the antiphase synchronization as...
- Why two clocks synchronize: Energy balance of the synchronized clocks. Czołczynski, Krzysztof; Perlikowski, Przemysław; Stefanski, Andrzej; Kapitaniak, Tomasz // Chaos;Jun2011, Vol. 21 Issue 2, p023129
We consider the synchronization of two clocks which are accurate (show the same time) but have pendulums with different masses. We show that such clocks hanging on the same beam beside the complete (in-phase) and antiphase synchronizations perform the third type of synchronization in which the...
- The Science of Computing About Time. Denning, Peter J. // American Scientist;Jul/Aug90, Vol. 78 Issue 4, p303
Focuses on the scientific computation and synchronization of time. Details of two major abstractions for time; Reasons for the significance of building clocks and signaling mechanisms; Challenges to time management in computing systems; Analysis of how clocks are synchronized to standard time;...
- What's the TIME? Ivanovich, Michael M. // Heating/Piping/Air Conditioning Engineering;Jan2006, Vol. 78 Issue 1, p5
The article offers reflections on time measurements. This paper provides information on leap seconds. Moreover, this article introduces two independent measurements of time including atomic time and universal time. Variations in terms of universal time are also discussed.
- Distant clock synchronization using entangled photon pairs. Valencia, Alejandra; Scarcelli, Giuliano; Yanhua Shih // Applied Physics Letters;9/27/2004, Vol. 85 Issue 13, p2655
We report a proof-of-principle experiment on distant clock synchronization. Besides the achievement of picosecond resolution at 3 km distance, this experiment demonstrated a concept for high-accuracy nonlocal timing and positioning based on the quantum feature of entangled states.
- A new clock synchronization scheme based on the second-order coherence of thermal light. JUN ZHU; PENG HUANG; XIAOQI XIAO; GUIHUA ZENG // Optica Applicata;2013, Vol. 43 Issue 2, p372
A novel thermal light based scheme utilizing the second-order coherence is proposed for ultra-high accuracy synchronization of two distant clocks. By using two-photon absorption, which involves an almost simultaneous absorption of two photons within a maximum delay given by the Heisenberg...