Online edition of India's National Newspaper
Thursday, March 21, 2002
Published on Thursdays
Telecommunication barrier broken
Scientists have found a way to get polymers to emit near-IR radiation by incorporating tiny nanocrystals in the polymers. Once commercialised, such nanocrystal polymers could potentially cut the costs of the hundreds of millions of telecommunications terminals needed to bring fibre optic communications to individual homes.
Hydrogen reaction experiment reaps a surprise
SCIENTISTS GOT a surprise recently when a team of physical chemists at Stanford University studied a common hydrogen reaction. The experiment and an associated new theory revealed behaviours completely opposed to what had previously been ...
Ancient pendulum riddle solved
U.S. PHYSICISTS have solved a 350-year-old riddle of why the pendulums of two clocks become synchronized. The clocks were the first example of spontaneous synchronization, a phenomenon found in nature from cells to the Solar System. In 1665, ...
Jurassic nose job
DINOSAURS WHICH perished 65 million years ago just got a rhinoplasty, says a report in New Scientist.. The century-old assumption that their nostrils were high on their heads is wrong. Their nostrils were probably much closer to the ...
Silicon nanoparticles come in various sizes and colours
A PROCESS for creating silicon nanoparticles, developed at the University of Illinois, has now been shown to produce a family of discrete particle sizes useful for microelectronics, optoelectronics and biomedical applications. As reported in ...
Space-time close up
QUANTIZATION IMPLIES that close up, space-time is like a photograph: the apparent smoothness breaks up into grainy patches. Normally we would never notice the grains. Their effects become important at very high energies. According to Einstein's ...
Printing with a laser burst
Once, laser printers were for those who wanted quality output and were prepared to pay a stiff price for it. Technical tricks have now enabled manufacturers to offer cheaper machines, almost in the price range of inkjets.
Industry shying away from opportunity
Scientists at IGCAR have developed several techniques to improve corrosion resistance several fold. Yet, the industry seems unaware of the work doneand even reluctant to capitalise on the opportunities available.
Sensor streamlines paper making
HOPING TO save the paper manufacturing industry millions of dollars in energy costs, Lawrence Berkeley National Laboratory engineers have developed a laser ultrasonic sensor. The electronic sensor measures paper's flexibility as it courses ...
Obesity: growing threat to health
Obesity is spreading at an alarming rate, not just in industrialised countries but also in developing countries, where it often sits next to malnutrition.
Coffee may help prevent cavities
A NEW research study indicates that coffee might help prevent cavities. The finding is reported in the Journal of Agricultural and Food Chemistry. Coffee made from roasted beans has antibacterial activities against certain microorganisms, ...
IN A huge river of primordial hydrogen flowing from the neighbouring Magellanic Clouds into our Milky Way galaxy, astronomers have discovered evidence of turbulence and concluded that the invisible, hot mass of gas surrounding our galaxy is much ...
Round the bend
A GOOD memory and careful posture are the key to powering around bends at 200 kilometres per hour, a study of a racing driver has revealed, according to a report in New Scientist. When negotiating a bend, ordinary drivers fix their eyes ...
VERMICOMPOSTING is an appropriate technique for efficient recycling of animal wastes, crop residues and agro-industrial wastes. Paddy strawis a wide C:N (80:1) organic material, low in nitrogen and phosphorus but fairly rich in potassium. In ...
Minimising aflatoxin contamination in groundnut
AFLATOXIN CONTAMNATION in groundnut poses serious threat to human and livestock health. This carcinogen produced by a fungi, Aspergillus flavus, can occur in the groundnut crop during the entire crop growth period and during storage. We ...
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