One of the characteristics of the modern international systems is the undeniable role the new communication technologies play in different sections of human societies. Modern communication technologies such as satellites and computers have challenged the national authority and sovereignty of Vestfallian states.  Although national states, specially, in the third world countries, extremely resist...

The emergence of several kinds of electronic media and devices that connect to the Internet has created the opportunity for a wide variety of educators to provide different types of educational materials to their students/learners. It is still a considerable challenge to set up comprehensive, online engineering instructional laboratories to teach students online about the use of scientific inst...

The paper presents a family of cycloidal cyclical surfaces, which are created by a movement of a circle alongside the special spatial cycloidal curve, where the circle is located in the curve normal plane and its centre is on this curve. The spatial cycloidal curve can be created by simultaneous revolution of a point about three different axes 3o,2 o and 1o in the space. The form of the cycloid...

Music, like language, is found in all known human societies, past and present, and although music has some precursors that can be found in other species, it is a defi ning characteristic of the human species (Wallin et al. 2000 ) . Although the perception of music has multisensory aspects (Thompson et al. 2005 ; Phillips-Silver and Trainor 2007 ) , it is based in sound. The vibrations that give...

Michael Polanyi (1891-1976) marks a turn in human perspective parallel to and as significant as the turn from the Ptolemaic to the Copernican angle of vision. The Ptolemaic way of viewing the world is named after Claudius Ptolemy, one of the great geographers and astronomers of the Graeco-Roman period, who was active in Alexandria, Egypt, in the Second Century of the Christian Era. In Ptolemy’s...