Trees or plants have a varied requirement of water which is determined by the kind of humidity, temperature, sunlight and water sources they are exposed to. Depending on the degree of evaporation of water from the plant, a narrow or a broad ring is formed on the stem. One ring indicates one year of growth in a tree. So the …
Read More »Why does the mouth become dry when there is a feeling of apprehension, concern or fear?
Apprehension, concern or fear stimulates the sympathetic nervous system of the body. Sympathetic stimulation has a direct effect on glandular cells of salivary glands. That causes reduced secretion of salivary glands because sympathetic stimulation causes vasoconstriction of blood vessels supplying the salivary glands. It also causes the formation of concentrated secretion. As a result, the mouth feels dry whenever there …
Read More »How is silk obtained?
Silk is the natural fiber produced by silkworms and is made from the juice secreted from the mouth of these insects. Silkworms are fed on the leaves of mulberry trees. In about 25 days, they make cocoons around themselves. One-fifth of the weight of a cocoon is silk. The silkworms are killed in hot water and silk is spun out. …
Read More »Why do we blush?
When we blush, we go red in the face, particularly in the cheeks and neck. Sudden emotion, such as embarrassment, a sense of shame or pleasure, causes the very small blood vessels just below the surface of the skin to deflate. As these capillaries are full of blood the skin look red. Blushing is most noticeable on a pale-skinned person. …
Read More »Why do we break our knuckles and where does the sound comes from?
The knuckle joint is called the “ball and socket” joint or the synovial joint. The space between the two bones, which form the joint, is filled with the synovial joint. The space between the two bones, which form the joint, is filled with the synovial fluid. During metabolism, bubbles of carbon dioxide accumulate in the fluid. When we break our …
Read More »Why is karate a Japanese martial art in spite of its Indian origin?
Like most martial arts, can trace its origin to Bodhidharma. He is known as “Daruma” in Japan and as often as not, this Indian Buddhist monk is cited as the prime source for all martial arts styles or at the very least, for any style which traces its roots back to the fabled Shaolin Temple. However, the question of his …
Read More »Who was the last player to captain England before David Beckham?
Martin Raymond Keown (born 24 July 1966 in Oxford, England) is a former English footballer, who spent much of his career at Arsenal, with stints at Aston Villa and Everton as well. He is now a part-time scout and coach for Arsenal, as well as a pundit for the BBC. Keown played U16 and U18 for England. When it was …
Read More »Who was the first captain of Indian Test team?
Cottari Kanakaiya Nayudu (31 October 1895 – 14 November 1967) was an Indian cricketer who served as India’s first Test captain. A solid batsman, Nayudu was known for his ability as a hard hitter of the ball. He was the first cricketer to be honoured with the Padma Bhushan. Nayudu originally spoke Telugu, but he grew up in Nagpur and …
Read More »Who was the 1st ODI captain for India?
India played its first ODI in 1974, under the captaincy of Ajit Wadekar. Ajit Wadekar has played only 2 ODI matches. Ajit Wadekar, born on 1st April 1941, in Mumbai, of India, was a dauntleess left-hand batsman. He had featured in the Indian team as well as in the domestic first-class cricket for the Mumbai cricket squad. It was the …
Read More »Who was man of the series in IPL 2008?
Australian all-rounder Shane Watson was declared the Man of the Series in IPL 2008 season. Watson played in the Indian Premier League for the Rajasthan Royals team. Signed up for US $125,000, he performed well with both the bat and the ball scoring four half-centuries to anchor his team to victory in three matches of the tournament and in the …
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