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GAGAN is expected to replace the GPS receivers and provide data integrity.            What is the origin of the name ‘GAGAN’? As you are aware GPS meets most of the navigation requirements of users. However, to improve the performance and integrity of the GPS system and to meet civil aviation requirements, the basic GPS system is to be augmented by GEO satellite with corrections and confi dences. Hence, the name GAGAN which is an acronym for GPS Aided Geo Augmented Navigation System was chosen. Gagan is a Hindi word of Sanskrit origin for the sky and aptly suits the project. We are expected to have a certified GAGAN by 2013. How close are we to this? With the completion of installation, integration and testing of all ground elements, the major requirements of facility certifi cation has been completed. The integration of GEO satellites with the ground elements and other aspects related to certifi cations have been taken up. The system is expected to be certifi ed by the 3rd

What you need to know about e-cigarettes As tobacco use continues its inexorable fall from grace, a growing number of people are turning to electronic cigarettes. These nifty electrical inhalers are being seen — and sometimes even marketed — as a "healthier" alternative to smoking tobacco. But are they really a viable alternative to cigarettes, or just a passing fad? What is it like to smoke one? And are they really safer than conventional cigarettes? Here's what you need to know about the e-cigarette. What is it? The e-cigarette is meant to mimic the experience of smoking a real one. It looks like a conventional cigarette, and is used in nearly the exact same way — less the fire and smoke. In fact, the experience is so true to traditional smoking that some consider it a viable cessation therapy. Full size Each e-cig is powered by a small lithium battery that atomizes a prop

Electronic contact lens displays pixels on the eyes              The future of augmented-reality technology is here - as long as you're a rabbit. Bioengineers have placed the first contact lenses containing electronic displays into the eyes of rabbits as a first step on the way to proving they are safe for humans. The bunnies suffered no ill effects, the researchers say.   The first version may only have one pixel, but higher resolution lens displays - like those seen in Terminator - could one day be used as satnav enhancers showing you directional arrows for example, or flash up texts and emails - perhaps even video. In the shorter term, the breakthrough also means people suffering from conditions like diabetes and glaucoma may find they have a novel way to monitor their conditions. In February, New Scientist revealed the litany of research projects underway in the field of contact lens enhancement. While one company has fielded a contact lens technology using a surfa

Smart carpet detects falls and strange footsteps A team at the University of Manchester in the UK has developed a carpet that can detect when someone has fallen over or when unfamiliar feet walk across it. Optical fibres in the carpet's underlay create a 2D pressure map that distorts when stepped on. Sensors around the carpet's edges then relay signals to a computer which is used to analyse the footstep patterns. When a change is detected - such as a sudden stumble and fall - an alarm can be set to sound. By monitoring footsteps over time, the system can also learn people's walking patterns and watch out for subtle changes, such as a gradual favouring of one leg over the other. It could then be used to predict the onset of mobility problems in the elderly, for example. The carpet could also be used as an intruder alert, says team member Patricia Scully . "In theory, we could identify footsteps of individuals and the shoes they are wearing," she says. But

Thermoelectric efficiency boost is good news for solar For more than half a century, researchers have been trying to salvage the substantial amounts of waste heat lost in fossil fuel plants and combustion engines. Heat loss throws away 40 per cent of petrol energy through the car's exhaust, and two-thirds of coal energy from coal-fired power plants. Their putative ability to mop up that lost energy has made thermoelectric materials a perpetual Cinderella technology. The materials use heat to create "free" electricity: current is generated when the temperature difference between the hot side (say, the exhaust) and the cool side (the ambient air) pushes electrons from one side of the material to the other.              In practice, however, thermoelectric materials reclaim at best only 5 to 7 per cent of the lost energy. Their efficiency - a material's ability to generate electricity for a given amount of thermal energy - is reflected in a figure called its Z

Role of youth in nation building?   A country where all citizens, young and old, are informed about and engaged in all major issues that affect their lives. A place where adults and young people are together at the table; debating, grappling with problems, crafting solutions and jointly deciding on how resources should be allocated. A robust democracy where all people, including youth, exercise their right to select those who should speak and act on their behalf and hold them accountable. Where young people have an equal opportunity to have a sustainable livelihood. Imagine adults and young people working together to build a thriving a society from the ground up contributing to nation building from the community level up to the national level. Herein lies the power behind the potential role of youth as nation builders through political participation. The term nation building is used here to refer to a constructive process of engaging all citizens in building social cohesi

  Edible sensors might be the first step to regulating  your  medication patterns.     If you perpetually forget to take your medicine, these new FDA-approved edible sensors might be the first step to regulating your medication patterns.             When you hear the term electronic pills, you might be imagining some sort of hardwired chips that you’re supposed to unwillingly ingest. This isn’t quite the case. The U.S. Food and Drug Administration passed an edible electronic sensor on Monday that will be used to keep track of a patient’s medication patterns to ensure they are regularly taking their meds. Proteus Digital Health, Inc. has developed a tiny, digestible sensor that aims to transmit data to an online app to help improve a patient’s health habits and patterns. These sensors can be integrated into any medically ingested products.            Once the pill is consumed and the sensor reaches the patient’s stomach fluids, data transmission is activated to determine th

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Welcome to The Atoms Family, a Science Learning Network resource based on The Atoms Family exhibit at the Miami Science Museum. This resource contains educational activities relating to different forms of energy, and are being presented by famous gothic horror characters. In order to experience the full capabilities of this site,         The Mummy's Tomb Learn about energy conservation, kinetic, and potential energy. The Phantom's Portrait Parlor Learn about the principles of atoms and matter. Dracula's Library Learn about the properties of light, waves, and particles. The Wolf Man's Ghostly Graveyard Learn about fuel conservation and energy transfer. Frankenstein's Lightning Laboratory Learn about different forms of electricity and electrical safety. Navigating this Site Learn how to explore the resources of this site. Building a Better Pyramid Grades 4-8 Cooling the Mummy's Tom