In this article, a novel numerical technique, called Fitness Adaptive Differential Evolution (FiADE) for optimizing certain pre-defined antenna configuration to attain best possible radiation characteristics is presented. Differential Evolution (DE), inspired by the natural phenomenon of theory of evolution of life on earth, employs the similar computational steps as by any other Evolutionary A...

This article describes the use of a web-based course to enhance the learning of mathematical concepts and skills in a university Physics course. Both the coupling of a symbolic language (Maple) and adequate feedback enable to simulate in a computer program the way students should perform. The learning effect which is aimed for is to improve both concepts and skills. Moreover, this tool helps to...

Electromagnetic induction is an important, yet complex, physics topic that is a part of Croatian high school curriculum. Nine Croatian high school students of different abilities in physics were interviewed using six demonstration experiments from electromagnetism (three of them concerned the topic of electromagnetic induction). Students were asked to observe, describe, and explain the experime...

Poltergeist occurrences are displays of energy that induce the movement of common household objects which ordinarily are held in place by inertia and gravity. At the same time the events reflect psychological tension between the central person and others, including investigators. Thus, the phenomenon combines physical and psychological processes. It is commonly referred to as recurrent spontane...

Modern experiment has shown that bulk matter exhibits quantum structure and that this structure is electromagnetic in character. Therefore, we treat the electromagnetic field as the source of gravitation. In this way, the theory of gravitation becomes consistent with the quantum theory of matter, which holds that electric charge (or ‘generalized charge’) is the most fundamental attribute of mat...