Communication has always played a pivotal role in the evolution of human culture, societies and civilisation. From symbols, cave paintings, petroglyphs, pictograms, ideograms and alphabet based forms of writing, to computerised forms of communication, such as the Web, search engines, email, mobile phones, VoIP Internet telephony, television and digital media, communication technologies have bee…
The worldwide rise in natural and man-made disasters in the last two decades has questioned the very preparedness to cope with them. Although less frequent, such disasters occur with high impact and completely disrupt the daily lives of people resulting in huge loss of lives and capitals to the extent of wiping out the entire city. Countries the world over have been developing mechanisms to dea…
This book is about light, energy, mass, space, time, and gravity: it is through these concepts that we explain the theory of special relativity and the theory of gravity, known as the theory of general relativity. We will use many thought experiments and show how physicists create and solve models. This method is the one used by Einstein himself. He understood the theory through both physical …
Looked for, cannot be seen. Listened for, cannot be heard. Felt for, cannot be touched. The Invisible Fist gives no warning, nor can it be stopped. You cannot hide from it, nor can you escape it. Why is this so? Any decent self-defense class can teach one to draw up his courage in the face of danger, the better to execute one all-out, totally committed, do-or-die technique. This usually resu…