A FEW WORDS ON BLACK RICE

A Few Words on Our New Format

Solving aero-acoustic or electromagnetic wave-dominated problems often requires finding accurate infinite domain solutions on a finite computational domain. One way of accomplishing this is to formulate absorbing boundary conditions through the technique of perfectly matched layers (PML). We discuss recent developments of PML methods for the absorption of acoustic waves in homogeneous mean flow...

A Few Words on Secret Writing

As we can scarcely imagine a time when there did not exist a necessity, or at least a desire, of transmitting information from one individual to another, in such manner as to elude general comprehension; so we may well suppose the practice of writing in cipher to be of great antiquity. De La Guilletiere, therefore, who, in his "Lacedaemon Ancient and Modern," maintains that the Spartans were th...

A Few Words on Entropy, Thermodynamics, and Horizons

We review recent progress in understanding certain aspects of the thermodynamics of black holes and other horizons. Our discussion centers on various “entropy bounds” which have been proposed in the literature and on the current understanding of how such bounds are not required for the semi-classical consistency of black hole thermodynamics. Instead, consistency under certain extreme circumstan...

A Few Words on the Subject of Village Sanitation

A Few Words from the Editors

Thanks to the work of Paolo Nichelli and Annalena Venneri, a reference style that corresponds to the requirements of Cortex is now available for EndNote and Reference Manager, two common reference managing programs distributed by ISI Researchsoft and Thomson Scientific. The styles will be added to the EndNote and Reference Manager packages for new users but they will also be posted on the new C...