Autor: Harris A. Sullivan

Venomous Indo-Pacific lionfish (Pterois miles and P. volitans) are now established along the Southeast U.S.A. and parts of the Caribbean and pose a serious threat to reef fish communities of these re …

It is well known that there are three kinds of electrostatic forces: gradient force, image force, and the Coulomb force. The gradient force acts on a non-charged body that is placed in a convergence …