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Thursday, February 07, 2002
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Tuning plastic magnets with light
Plastic magnets and light-responsive magnets have been developed earlier. But this is the first time both the technologies have been married into one. This technology could one day lead to a magneto-optical system for writing and erasing data from co mputer hard drives. More
Lightning does not strike the Poles
LIGHTNING. IT avoids the ocean, but likes Florida. It's likely to strike in the Himalayas and even more so in central Africa. And lightning almost never strikes the North or South Poles. These are just a few of the things NASA scientists at ... More
Powerful explosive
A POWERFUL explosive which is an exotic form of silicon releases seven times as much energy as TNT, and explodes a million times faster say German researchers in a report in New Scientist. The group cooled the porous silicon _ a sponge ... More
Refrigerator sans compressor
RESEARCHERS AT the Milwaukee-based Astronautics Corporation of America , in cooperation with the Ames Laboratory of the U.S.Department of Energy , have demonstrated a room temperature , permanent-magnet , magnetic refrigerator This new style of ... More
Evolution of bird flight linked to parental care
MODERN BIRDS evolved from ground-dwelling reptiles as their increasingly refined parenting skills led them into the trees, where they could better protect their young, proposes a researcher at the University of California, Davis. This new ... More
Information Technology
How to unclog the Internet
A NEW computation technique, developed by researchers at Rensselaer Polytechnic Institute, could lead to more effective Internet traffic management and congestion control. Christopher Carothers, assistant professor of computer science studied ... More
The CD is dead; long live the DVD!
CD-ROM is giving way to the DVD — ushering in an era of high-density data storage. Consumers have to prepare for a showdown with content providers, over ownership and copyright issues. More
Microchip gives blind a chance of sight
A COMPUTER chip implanted near the eye's retina is well on its way to offering some restored vision. People blinded by eye diseases such as retinitis pigmentosa and age-related degeneration of the eye will be benefitted by the new development. ... More

Health & Medicine
Broccoli's role against cancer
A CANCER-PREVENTING compound in broccoli, first isolated a decade ago at Johns Hopkins, may protect against a much broader spectrum of diseases. A new study shows that the compound, sulphoraphane, helps cells defend themselves for two or three ... More
Nose plug: switch that stops smelling
SCIENTISTS FROM The Johns Hopkins University School of Medicine have recently found that the brain's `nose plug' that is the switch in the brain that lets us stop smelling something, even though the odour is still there. Two papers published in ... More

Paths Of Innovators
J.C. Bose: Combining physics and biology
JAGADISH CHANDRA BOSE was born on November 30, 1858 in Myemsingh (now in Bangladesh). His early education was in a village Patshala in the Bengali medium, till the age of 11. In 1869, he was sent to Calcutta to learn English and was educated at ... More

Backyard eel culture: ideal for small farmers
BACKYARD EEL culture is a low-cost enterprise for small and marginal farmers. It is relatively easy and more profitable than several other small-scale fish-culture projects. Eel culture does not require expansive water bodies and specific ... More
Head rot of sunflower
SUNFLOWER IS an important oil seed crop in Tamil Nadu. Among the diseases affecting sunflower, head rot is serious. It appears during condition of high relative humidity followed by rains. The affected heads show water soaked lesion on the ... More
Sulphur to increase quality of chillies
IN CHILLIES sulphur plays an important role in increasing both production and quality. Chillies are highly responsive to sulphur especially in deficit soil, the application of which besides increasing yield is also found to increase the ascorbic ... More

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