This text is a review on the most important features of the latest Sony Bravia 2011 model – KDL46EX720. It was just recently that my wife and I decided to buy a new TV, and one of first choices was this Sony Bravia model. As we have been involved into the various technical details...
Researchers from the University of California – specifically from the Henry Samuel School of Engineering and Applied Science – have recently discovered a new and relatively simple technique for solar cells manufacturing. Their inexpensive solution is to use a unique method of solar cells fabrication based on copper-indium-gallium-selenide (CIGS) technology. While te conventional methods...
Time units can be confusing. You might know what nanosecond is, as this unit corresponds to some time processes in various electronic devices. If you are a scientist, engineer or technician you should be able to identify the smallest time units, some of which are even smaller than femtosecond. Let us see first what...
Photos obtained by the method developed by the Russian researchers Semyon and Valentina Kirlian (first in 1939) are called Kirlian photographs. The method implies placing an object between two oscillatory plates, one of which is sensitive to the leakage current of high voltage applied to the object being photographed. This method is able to...
that are involved during perceiving matter around us? What are the five senses in reality? And to what extent are we actually perceiving matter, if at all? We will start with the sense of smell. What happens when we smell something? Fine particles from which matter is consisted are dispersed in space and they...
So by combining carbon atoms we get both diamond and graphite, (not to mention coal which we use for producing heat in our power plants). But why are they so different? You may all know that diamond is one of the hardest minerals on Earth. On the Mohs scale of mineral hardness – scale...