I find a sea change in attitude of people welcoming guests from yesteryears to now. In madurai in our house there used to be a steady stream of guests both from local and outside Madurai. People used to say ' I was going to temple, on the way I thought I would say hello to you', or ' I was just passing by I thought I would peep in'. They used to come and sit and gossip. Once one lady came to our house in summer saying 'even if I am given a lakh of rupees I will not go outside in this hot summer,...

Time standards and GPS:

The Global Positioning System (GPS) is a radionavigation system that is available worldwide. GPS signals are broadcast from a constellation of 24 or more earth orbiting satellites. Because the GPS signals are derived from the atomic frequency standards on board each satellite, they are widely used as a reference for time synchronization and frequency calibration.

Heart of the GPS system is the atomic frequency standards and the National Institute...

கண்களே என் இனியவளை
காணச் செய்ததற்கு நன்றி

காதுகளே அவளின் கிளிப்பேச்சை
கேட்க வைத்தற்கு...

Dear ILites,

Those of you who have read my serial story 'Vigyani' will remember the machine I was mentioning that will produce water from air. This Fuel cell is one such machine and once developed and produced in mass numbers it will be a great boon to India in electricity generation and water production in all villages and remote places. The National Institute of Standards and Technology here in U.S where I am working is engaged in the development of these fuel cells.

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காளமேகப் புலவர் பசித்த வயிற்றுடன் நாகப்பட்டினம் நகரில் இருந்த
காத்தன் என்பவனின்...