3D PRINTING TECHNOLOGY

The art of 3-D printing has attracted mechanical designers specially in automotive and aviation industry because it has revolutionized model prototyping. As far as vehicle design is concerned, this industry was the first to espouse 3D modeling for generating template models of vehicle body and engine parts. The simplest way to describe 3D modeling is that a digital input file results in a physical three dimensional object using a computer controlled mechanism. From modeling point of view it is the formation of an object by addition of different horizontally sliced cross sections of the actual object, combined to generate the…

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THE NEW OLYMPIC CHAMPIONS : EMERGING VIRUSES

The truth about Brazilian epidemics The next Olympics and Paralympics games will be held in Rio de Janeiro, Brazil in August and September 2016. Together with athletes and guests from all over the world, uninvited visitors are also taking part in the event: three different viruses transmitted by mosquito bites. In this article, I give you information about the diseases and how you can protect yourself while attending the games. The experienced competitor: Dengue virus The Dengue virus, genus Flavivirus (Flaviviridae), is an old acquaintance to Brazilians. The first outbreak occurred in Roraima, northern Brazil, in 1980. Six years later,…

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Generating Electricity From Plants

Generating Electricity From Plants

The modern world claims for new sources of clean, renewable energy. The available bioenergy sources are not as green as they claimed to be. The current use of biomass usually produces some waste and competes with food crops for space. Scientists created a non-destructive technology that uses living plants, including food crops, for generating electricity from plants. Plant use in energy production over time Plants have the capacity to transform solar energy into chemical energy and store part of this energy in the form of sugars (carbohydrates). With the discovery of fire, the humankind found out how to use the…

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THIRD DENTITION IN HUMANS : FICTION OR REALITY ?

Third Dentition

A couple of years ago I was flipping through magazine as a short note on human third dentition caught my attention. On those no more than five lines lay the hope of tooth renewal. ‘Fantastic!’, I said to myself, ‘but it is too good to be true.’ So, I decided to investigate. Here I share some of my findings. The action of time Aging affects all living organisms. Nothing escapes from the action of time. Natural processes make flowers blossom, whereas others make them wither some time later. Natural processes affect teeth similarly. After teething, toddlers bear bright white pearl-like…

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THE LIGHTNING MECHANISM

lightning Mechanism

It raises many eyebrows when it comes to the subject of how lightning stroke occurs and what magic happens in the sky that blurs our vision in the form of light, makes our ears deaf in the form of sound and burns everything it encounters on earth. Perhaps lightning mechanism is the most evident and elaborated example of an electrostatic discharge. Such kind of discharges have always been the center of attention for mankind because the anger of a stroke can never go unnoticed, it can interrupt us midday or can wake us up at the night increasing our heartbeats.…

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INTRODUCTION TO PIEZOELECTRIC MOTORS

The word Piezoelectric roots back to the Greek terminology Piezein, meaning to squeeze or shrink something. The research on piezoelectric materials originated in 1881 when Pierre and Jacques determined that crystals made of quartz produce an electric field when a force or pressure is applied. The inverse methodology is applied in piezoelectric motors where application of an electric stress results in a physical motion either in linear or rotary fashion. So these special kinds of electromechanical systems differ from conventional motors which employ the law or electromagnetic induction to yield motion. In modern designs ultrasonic waves serve as a source…

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ARTIFICIAL INTELLIGENCE

artificial intelligence

Have you ever seen an assembly line robot at a manufacturing facility that intelligently removes faulty products, for example some kind of food item or an automobile part, from being intermingled with those marked as healthy items. If yes, then you have witnessed Artificial Intelligence being applied in real life problem solving. Most of the people think that artificial intelligence is something beyond human intelligence and systems which employ artificial intelligence perform some magic to solve problems, certainly it is not true, as artificial intelligence and neural networks are based on the human’s thought processes developed in the form of…

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MOBILE PHONE RADIATIONS HEALTH RISKS

The advent of modern technology has facilitated mankind in various shapes of which one is connecting people sitting far from each other through telecommunication systems. Over the past ten to fifteen years the use of cellular phones has increased exponentially touching the numeric value of 7.4 billion. A more comprehensive interpretation revealed that out of 100, 97 people have cell phones. But ease always comes at a cost, the mobile phones use electromagnetic radiation which people are directly exposed to. These mobile phone radiations have many adverse effect on our health. Research has been conducted both by world health organization…

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UAVs – EVOLUTION OF UNMANNED AERIAL VEHICLES

The term unmanned aerial vehicles (UAVs), in modern age, is used to point our attention to the military utility vehicles controlled without an on board aircrew. However the applications of such kind of objects is not only limited to the military use as oil fields surveys and general purpose surveillance have also employed UAVs as an iconic tool to flourish their business. The UAVs we hear about today, have evolved through an iterative process as those developed some ninety to hundred years ago were simple and of basic type, owing to the fact that technology wasn’t that much advanced as…

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LED LIGHTS – VERSATILE LED LIGHTING TECHNOLOGY

LED Lights

LED lights are emerging technology now a day in consumer market for home and commercial lighting needs. This technology of lighting is dominating the conventional Incandescent lighting products which are still operational after serving light for a long period, since it was discovered. CFL replaced the conventional lighting incandescent bulb with some extra features which make them more efficient and long lasting. The newborn LED lights with many advantages favors the replacement of CFL and Incandescent bulbs with it. Today every possible approach towards energy saving is appreciated as a forward step to conserve our base resources. Having many advantages…

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