NAVNEET
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VOL. XV, NO.23 , RNI NO. 65140/96 Mumbai , Oct 30 - Nov 5, 2010 Pages 12 Rs : 12/-
Children’s weekly newspaper
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Check about National Awards celebration in India news
Take a look at the New Mac Book in Technology news
Check out dogs dressed up as celebrities in Leisure
Know about the new Egyptian tomb in world news
Read about Federer’s Stockholm Open win in sports news
A spotted tale A team of researchers has answered the age-old question of how the leopard got its spots. The team studied the flank markings of 35 species of wild cats and linked their spots to a mathematical model of pattern development. The results showed that cats living in dense habitats are the most likely to be patterned. This suggests that patterning evolved for camouflage. The research also explains why black leopards are common but black cheetahs aren’t. Unlike the cheetah, leopards live in a wide range of habitats. Having several habitats and niches allows atypical colours and patterns to evolve .
An engineered collision Scientist have released the first detailed explanation of the crater formed when a part of NASA’s LCROSS satellite was intentionally crashed into the Moon. The satellite’s companion, Centaur, was sent into the Cabeus crater near the lunar South Pole. This kicked up debris from the bottom of the crater to be analysed. Scientists have received a number of surprises. Not only did the lunar sample contain water, it also harboured other compounds such as carbon monoxide, carbon dioxide, ammonia, free sodium and even silver.
Lungs can smell A number of 50-millionyear old insects have been discovered in Gujarat. Entombed in amber deposits, the specimens have been exquisitely preserved. This discovery may change the current views of India’s biogeographical history. On studying the insect specimens found recently, it has been discovered that they are related closely to extinct species from Europe, Australia and even tropical America.This relationship suggests that insects were migrating through islands evens before India collided with Asia. Further, the amber deposit also provide evidence of a tropical rainforest in Asia. This rainforest would be 50 million years old, making it the earliest recorded one in Asia. This pushes back the antiquity of Asian rainforests by nearly 25 million years.
Asia’s oldest forest NEW research has found that bitter taste receptors exist not only in the mouth, but also in the lungs. This new discovery could revolutionise the treatment of asthma. Unlike the taste receptors on the tongue, the ones in the lungs are not clustered in buds and do not send signals to the brain. However, they do respond to bitter taste. It was found that bitter substances open the airway better than most medication. Another surprising discovery was the role of calcium when the lungs’ taste receptors were activated. Normally, calcium causes contraction in smooth muscles. Yet, the bitter compounds increased calcium and caused muscles to relax.
News Bytes
Centuries old tunnel A 200-year-old tunnel was unearthed in Mumbai. The tunnel has a vast hall, thick walls, pillars and a muddy floor. It will soon be examined to see if it has any heritage value or anything related to history background. Strengthening the Navy
The Indian Navy is planning to procure six Medium Range Maritime Reconnaissance aircraft. These will replace the ageing fleet of 12 Islander aircraft in service. Back to school Freedom fighter Bhol-aram Das, who just turned 100, has announced he is going back to school.Das has enrolled in a PhD programme, making him one of India’s oldest university students. Math for marathoners A dedicated marathoner has made a mathematical model to help fellow runners perform better. His formula helps calculate how much carbohydrate a runner needs to stay fuelled through 26.2 miles as well as what pace a runner can expect to sustain.