Ram Kumar

7 Ways to Help Reduce Mobile Phone Radiation

Mobile Phone Radiation

Even Martin Cooper, commonly known as the father of mobile phones could not have imagined the penetration of his device into our lives. To the extent that mobile phones are being called the “third hand” of human beings. Despite their prevalence, there are still concerns about the radiation emitted from the devices into our ears, and therefore brains. In this post you can find some simple ways to protect yourself from radiation. 1. Go hands-free: Recent research say that wired telephones are less dangerous than mobile phones, so whenever you have access to fixed line phones go for them. 2. Use headphones:… read more

Could This Be The Answer to a Paperless Society?

A paperless society?

Paper use on a global scale is enormous. We have no one to blame but ourselves as many daily transactions still require paperwork despite technological advances towards a paperless society. In an effort to preserve forests and the environment, Taiwan’s Industrial Technology Research Institute (ITRI) have unveiled a promising and cutting edge “rewritable electronic paper”. The interesting part about this e-paper is that it can retain information written upon it without using electricity and it is designed to replace paper products that only have a limited lifespan such as tickets or daily office papers, thus saving on waste and energy. This phenomenal project… read more

Power Your Building With ‘Smart Windows’

Smart powered windows

With steep increases in the price of electricity a reality,  and ongoing concern about carbon emissions many homeowners around the globe have started to think about using solar power to keep their household costs down. People living in stand alone houses are able to use rooftop solar panels to generate their own power but what about people living in apartments? One solution may be to install “smart” windows. These are in development and integrate solar panel technology into window glass allowing you to power your house. UCLA’s Material Science and Engineering Department has come up with a solar cell made of polymer…. read more

There’s Power Beneath The Waves

Power Beneath the Waves

Deep ocean currents are powerful and constant movements of ocean water more than 400m below the surface. They occur due to density driven forces acting upon them including gravity. A new type of ocean power generator is being considered that could harvest this steady, reliable energy of the deep ocean currents, and a group of companies is working together to place the first 1 megawatt system on the seafloor. Companies are currently raising funds for the demonstration project, and they are looking into R&D funding from the U.S. Navy and the Department of Energy. The grid connections and system software used… read more

Keeping Cool And Green

Keeping Cool And Green

Life without air conditioning has become impossible to imagine in some parts of the world and with temperatures predicted to rise in the future this situation does not look like changing. However air conditioning is notorious for increasing energy consumption dramatically in households and businesses. There are a few checks that you can make to reduce the carbon footprint that your air conditioner makes. Mind about MERV MERV stands for Minimum Efficiency Reporting Value. It is a scale developed for measuring filtering effectiveness, and this scale was developed by the American Society of Heating in around 1981. The scale ranges from 1… read more

Making Solar Cheaper

Cost of Solar

Recently a California-based company named Alta Devices announced the news that it had achieved a record for the efficiency of an individual solar cell. Alta Devices have broken their own previous record of 23.5% and the new efficiency levels of 27.6% has been verified by the National Renewable Energy Laboratory. Alta Devices makes solar panels using gallium arsenide. Gallium arsenide is a more efficient material than the silicon-based cells which are currently more prevalent. To keep prices down the company uses remarkably small amounts of gallium and arsenic. This is done by creating layers of gallium arsenide only a micron thick. The development… read more

Turning Sewage into Paper

applied-clean-tech-recycled-toilet-paper-560x420

Can you imagine writing something on sewage? An Israeli researcher, Dr. Refael Aharon of Applied CleanTech, has developed a new system that is capable of turning stinking sewage into scentless paper. So how is sewage turned to paper? Domestic waste water contains solid substances in the form of food leftovers, used toilet paper and fiber from clothes as they are laundered. These solid substances contain cellulose which can be used for paper production after drying. Treatment of the solids currently found in waste water is a challenging and expensive activity for the effluent management industry. Dr. Aharon’s system can reduce solids… read more

Quantum Dot Solar Cells

220px-Sargent_Group_quantum_dot_solar_cell

More than one hundred of  the world’s first solar cells with EQE (External quantum efficiency)  were created recently showing significantly greater efficiency than regular solar cells. These enhanced solar cells generate 40% more power for every photon which falls on the solar cell. This achievement was possible with the help of Multiple Excitation Generation (MEG). MEG works by splitting and using a greater portion of the energy in the higher energy photons. The test results showed MEG produced an EQU value of 114 % for 4 eV photons. “Since current solar cell technology is still too expensive to completely compete with non-renewable… read more

Ethically Manufactured Gadgets

Ethical Electronics

With huge global demand for electronic gadgets especially mobile phones, the need for the minerals to build these electronic devices has sky-rocketed. But have we really considered where and how these minerals are produced? A report last year in Business Week uncovered how tin, a vital element in the production of our favorite gadgets, is mined under horrendous conditions for the workers. The article brought to light an horrific story which has been ignored up to now in the headlong rush to acquire the latest mobile technology. Not just tin, but many other component minerals are mined in Indonesia, where mining is a hazardous… read more

Technology Turns The Tide

refurbished-laptops_01

It seems a contradiction, however technology and digital developments are helping us to become more energy conscious. Up to now consumers in the developed world have had an insatiable appetite for all the new mobile technology being launched each year. In fact so clever have marketing departments become, that we race out to buy the latest updates regardless of whether our existing device still functions perfectly well. The ‘must have’ mindset has set in. However, another fact of life is that everything old will be new again. Indeed the refurbishment of products by their original manufacturer has led to an upswing in demand… read more