I d like to run away From you, But if you didn t come And find me ... I would die. ~ by Shirley Bassey ~
You laugh at me because I'm different, I laugh at you because you're all the same.
India's team for the World Cup in the West Indies was announced on Monday. The selectors included the out-of-form Viredner Sehwag and Irfan Pathan in the team, which comprises six batsmen, five medium-pacers, two spinners and two wicketkeepers.
Here's a look at the track record of the 15-man squad.
Batting & fielding:
| Player | Mts | Inns | NO | Runs | Hs | Avg | SR | 100 | 50 | 0 | Ct | St |
| AB Agarkar | 178 | 107 | 26 | 1240 | 95 | 15.30 | 82.17 | 0 | 3 | 9 | 48 | 0 |
| MS Dhoni (Keeper) | 64 | 57 | 15 | 1891 | 183* | 45.02 | 98.79 | 2 | 11 | 2 | 60 | 12 |
| R Dravid (Captain) | 308 | 286 | 36 | 9978 | 153 | 39.91 | 70.70 | 12 | 76 | 10 | 183 | 14 |
| SC Ganguly | 284 | 274 | 21 | 10364 | 183 | 40.96 | 73.95 | 22 | 63 | 14 | 96 | 0 |
| Harbhajan Singh | 145 | 75 | 21 | 687 | 46 | 12.72 | 79.05 | 0 | 0 | 9 | 41 | 0 |
| KD Karthik | 11 | 7 | 0 | 145 | 63 | 20.71 | 60.16 | 0 | 1 | 0 | 10 | 1 |
| Zaheer Khan | 115 | 63 | 27 | 490 | 34* | 13.61 | 83.62 | 0 | 0 | 10 | 26 | 0 |
| A Kumble | 270 | 136 | 47 | 938 | 26 | 10.53 | 61.06 | 0 | 0 | 18 | 85 | 0 |
| MM Patel | 16 | 7 | 5 | 6 | 2* | 3.00 | 37.50 | 0 | 0 | 1 | 1 | 0 |
| IK Pathan | 73 | 54 | 14 | 1006 | 83 | 25.15 | 80.10 | 0 | 5 | 6 | 12 | 0 |
| V Sehwag | 165 | 160 | 7 | 4775 | 130 | 31.20 | 95.90 | 7 | 24 | 11 | 69 | 0 |
| S Sreesanth | 26 | 9 | 4 | 7 | 3 | 1.40 | 25.00 | 0 | 0 | 3 | 2 | 0 |
| SR Tendulkar | 380 | 370 | 36 | 14782 | 186* | 44.25 | 85.68 | 41 | 76 | 17 | 114 | 0 |
| AR Uthappa | 7 | 6 | 0 | 203 | 86 | 33.83 | 109.13 | 0 | 2 | 1 | 4 | 0 |
| Yuvraj Singh | 161 | 145 | 21 | 4296 | 139 | 34.65 | 85.63 | 7 | 25 | 8 | 54 | 0 |
Bowling:
| Player | Mts | Overs | Mdns | Runs | Wkts | Best | Avg | Econ | 5W |
| AB Agarkar | 178 | 1463.4 | 92 | 7402 | 270 | 6-42 | 27.41 | 5.06 | 2 |
| MS Dhoni | 64 | - | - | - | - | - | - | - | - |
| R Dravid | 308 | 31 | 1 | 170 | 4 | 2-43 | 42.5 | 5.48 | 0 |
| SC Ganguly | 284 | 689.1 | 29 | 3484 | 93 | 5-16 | 37.46 | 5.05 | 2 |
| Harbhajan Singh | 145 | 1296.1 | 66 | 5349 | 168 | 5-31 | 31.83 | 4.12 | 2 |
| KD Karthik | 11 | - | - | - | - | - | - | - | - |
| Zaheer Khan | 115 | 948.1 | 62 | 4640 | 165 | 4-19 | 28.12 | 4.89 | 0 |
| A Kumble | 270 | 2406.5 | 109 | 10374 | 334 | 6-12 | 31.05 | 4.31 | 2 |
| MM Patel | 16 | 125.4 | 12 | 590 | 21 | 4-49 | 28.09 | 4.69 | 0 |
| IK Pathan | 73 | 592.3 | 41 | 2980 | 115 | 5-27 | 25.91 | 5.03 | 1 |
| V Sehwag | 165 | 549.2 | 12 | 2888 | 71 | 3-25 | 40.67 | 5.25 | 0 |
| S Sreesanth | 26 | 211.3 | 11 | 1218 | 34 | 6-55 | 35.82 | 5.75 | 1 |
| SR Tendulkar | 380 | 1276.5 | 24 | 6439 | 147 | 5-32 | 43.8 | 5.04 | 2 |
| AR Uthappa | 7 | - | - | - | - | - | - | - | - |
| Yuvraj Singh | 161 | 324.1 | 13 | 1590 | 42 | 4-6 | 37.86 | 4.90 | 0 |
Batting & fielding:
| Player | Mts | Inns | NO | Runs | Hs | Avg | SR | 100 | 50 | 0 | Ct | St |
| AB Agarkar | 3 | 1 | 0 | 1 | 1 | 1.00 | 20.00 | 0 | 0 | 0 | 1 | 0 |
| R Dravid | 19 | 18 | 6 | 779 | 145 | 64.92 | 75.27 | 2 | 5 | 0 | 17 | 1 |
| SC Ganguly | 18 | 18 | 3 | 844 | 183 | 56.27 | 81.78 | 4 | 1 | 1 | 1 | 0 |
| Harbhajan Singh | 10 | 6 | 2 | 58 | 28 | 14.50 | 98.31 | 0 | 0 | 0 | 2 | 0 |
| Zaheer Khan | 11 | 5 | 1 | 18 | 13* | 4.50 | 66.67 | 0 | 0 | 2 | 6 | 0 |
| A Kumble | 17 | 8 | 4 | 62 | 17 | 15.50 | 70.45 | 0 | 0 | 0 | 14 | 0 |
| V Sehwag | 11 | 11 | 0 | 299 | 82 | 27.18 | 86.67 | 0 | 2 | 0 | 8 | 0 |
| SR Tendulkar | 33 | 32 | 3 | 1732 | 152 | 59.72 | 87.56 | 4 | 12 | 1 | 10 | 0 |
| Yuvraj Singh | 11 | 10 | 3 | 240 | 58* | 34.29 | 85.41 | 0 | 2 | 1 | 1 | 0 |
Bowling:
| Player | Mts | Overs | Mdns | Runs | Wkts | Best | Ave | Econ | 5W |
| AB Agarkar | 3 | 28 | 0 | 162 | 3 | 1-35 | 54.00 | 5.79 | 0 |
| R Dravid | 19 | - | - | - | - | - | - | - | - |
| SC Ganguly | 18 | 58 | 1 | 283 | 9 | 3-22 | 31.44 | 4.88 | 0 |
| Harbhajan Singh | 10 | 85.2 | 5 | 335 | 11 | 2-28 | 30.45 | 3.93 | 0 |
| Zaheer Khan | 11 | 88.2 | 5 | 374 | 18 | 4-42 | 20.78 | 4.23 | 0 |
| A Kumble | 17 | 164 | 5 | 670 | 28 | 4-32 | 23.93 | 4.09 | 0 |
| V Sehwag | 11 | 22 | 2 | 88 | 2 | 1-3 | 44.00 | 4.00 | 0 |
| SR Tendulkar | 33 | 104 | 1 | 469 | 6 | 2-28 | 78.17 | 4.51 | 0 |
| Yuvraj Singh | 11 | 14.3 | 2 | 70 | 5 | 4-6 | 14.00 | 4.83 | 0 |
Note: Six players - Dhoni, Karthik,Patel,Pathan,Sreesanth and Uthappa- will be making their World Cup debut.
Heavy water is the key to one type of reactor in which plutonium can be bred from natural uranium. As such, the production of heavy water has always been monitored, and the material is export controlled. In addition, a source of deuterium is essential for the production of tritium and 6LiD, two ingredients of thermonuclear weapons. A nation seeking large quantities of heavy water probably wishes to use the material to moderate a reactor, and may be planning to produce plutonium. However, CANDU (CANadian Deuterium Uranium) reactors designed and built in Canada are used for commercial electric power production.
Heavy water, D2O, is water in which both hydrogen atoms have been replaced with deuterium, the isotope of hydrogen containing one proton and one neutron. It is present naturally in water, but in only small amounts, less than 1 part in 5,000. Heavy water is one of the two principal moderators which allow a nuclear reactor to operate with natural uranium as its fuel. The other moderator is reactor-grade graphite (graphite containing less than 5 ppm boron and with a density exceeding 1.50 gm/cm 3 ). The first nuclear reactor built in 1942 used graphite as the moderator; German efforts during World War II concentrated on using heavy water to moderate a reactor using natural uranium.
The importance of heavy water to a nuclear proliferator is that it provides one more route to produce plutonium for use in weapons, entirely bypassing uranium enrichment and all of the related technological infrastructure. In addition, heavy-water-moderated reactors can be used to make tritium.
Although one speaks of "making" heavy water, deuterium is not made in the process; rather, molecules of heavy water are separated from the vast quantity of water consisting of H2O or HDO (singly deuterated water), and the "dross" is discarded. Alternatively, the water may be electrolyzed to make oxygen and hydrogen containing normal gas and deuterium. The hydrogen can then be liquefied and distilled to separate the two species. Finally, the resulting deuterium is reacted with oxygen to form heavy water. No nuclear transformations occur.
The production of heavy water in significant amounts requires a technical infrastructure, but one which has similarities to ammonia production, alcohol distillation, and other common industrial processes. One may separate heavy water directly from natural water or first "enrich" the deuterium content in hydrogen gas. It is possible to take advantage of the different boiling points of heavy water (101.4 °C) and normal water (100 °C) or the difference in boiling points between deuterium (-249.7 °C) and hydrogen (-252.5 °C). However, because of the low abundance of deuterium, an enormous amount of water would have to be boiled to obtain useful amounts of deuterium. Because of the high heat of vaporization of water, this process would use enormous quantities of fuel or electricity. Practical facilities which exploit chemical differences use processes requiring much smaller amounts of energy. Separation methods include distillation of liquid hydrogen and various chemical exchange processes which exploit the differing affinities of deuterium and hydrogen for various compounds. These include the ammonia/hydrogen system, which uses potassium amide as the catalyst, and the hydrogen sulfide/water system (Girdler Sulfide process).
Separation factors per stage are significantly larger for deuterium enrichment than for uranium enrichment because of the larger relative mass difference. However, this is compensated for because the total enrichment needed is much greater. While 235U is 0.72 percent of natural uranium, and must be enriched to 90 percent of the product, deuterium is only .015 percent of the hydrogen in water and must be enriched to greater than 99 percent. If the input stream has at least 5 percent heavy water, vacuum distillation is a preferred way to separate heavy from normal water.
This process is virtually identical to that used to distill brandy from wine. The principal visible difference is the use of a phosphor-bronze packing that has been chemically treated to improve wettability for the distillation column rather than a copper packing. Most organic liquids are non-polar and wet virtually any metal, while water, being a highly polar molecule with a high surface tension, wets very few metals. The process works best at low temperatures where water flows are small, so wetting the packing in the column is of particular importance. Phosphor-bronze is an alloy of copper with .02-.05 percent lead, .05-.15 percent iron, .5-.11 percent tin, and .01-.35 percent phosphorus.
Heavy water is produced in Argentina, Canada, India, and Norway. Presumably, all five declared nuclear weapons states can produce the material. The first commercial heavy water plant was the Norsk Hydro facility in Norway (built 1934, capacity 12 metric metric tons per year); this is the plant which was attacked by the Allies to deny heavy water to Germany. As stated above, the largest plant, is the Bruce Plant in Canada (1979; 700 metric tons/year). India's apparent capacity is very high, but its program has been troubled. Accidents and shutdowns have led to effective limitations on production.
The Bruce Heavy Water Plant in Ontario, Canada, is the world's largest producer of D2O. It uses the Girdler Sulfide (GS) process which incorporates a double cascade in each step. In the upper ("cold," 30-40 °C) section, deuterium from hydrogen sulfide preferentially migrates into water. In the lower ("hot," 120-140 °C) section, deuterium preferentially migrates from water into hydrogen sulfide. An appropriate cas-cade arrangement actually accomplishes enrichment. In the first stage the gas is enriched from 0.015% deuterium to 0.07%. The second column enriches this to 0.35% , and the third column achieves an enrichment between 10% and 30% deuterium. This product is sent to a distillation unit for finishing to 99.75% "reactor-grade" heavy water. Only about one-fifth of the deuterium in the plant feed water becomes heavy water product. The production of a single pound of heavy water requires 340,000 pounds of feed water.
Houston: An Indian American professor of electrical and computer engineering at Louisiana State University has claimed to have solved Einstein's twin paradox, known as one of the most enduring puzzles of modern-day physics.
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First suggested by Albert Einstein more than 100 years ago, the paradox deals with the effects of time in the context of travel at near the speed of light.
Einstein originally used the example of two clocks, one motionless, one in transit. The paradox has been described using the analogy of twins, if one twin is placed on a spacecraft travelling near the speed of light while the other twin remains earthbound, the unmoved twin would have aged dramatically compared with his interstellar sibling.
"I solved the paradox by incorporating a new principle within the relativity framework that defines motion not in relation to individual objects, such as the two twins with respect to each other, but in relation to distant stars," said the scientist Subhask Kak.
In his work, he uses probabilistic relationships to assume that general properties of the universe do not vary by location.
His formula completes attempts by others, as well as Einstein himself.
Professor Kak, who hails from Jammu and Kashmir, is currently Delaune Distinguished Professor of Electrical Engineering and Professor in the Asian Studies and Cognitive Science Programs at LSU, Baton Rouge.
Kak said the implications of his resolution will be widespread, generally enhancing the scientific community's comprehension of relativity and possibly impacting quantum communications.
From a neuroscience laboratory in Gurgaon, one scientist is busy conducting experiments on rodents to find cure for a viral disease that kills over 1,000 children every year in India. Most of the victims are those living in Western Uttar Pradesh, Maharashtra and Assam.
Since 2004, Dr Anirban Basu is searching for a cure for Japanese encephalitis, a viral disease spread by mosquitoes that transfer the virus from infected pigs and wading birds to humans. Japanese encephalitis is the leading cause of viral encephalitis in Asia, with 30,000 to 50,000 cases reported annually.
Basu’s experiments for a cure have been successfully tested on rodents. “This research needs more time before it can be tested on humans,’’ said Basu, a scientist at the National Brain Research Centre. Talking to the Hindustan Times he said, “I want to see the results of my experiment improve treatment for Japanese encephalitis some day.”
The virus can infect both humans and animals including birds, bats, snakes, and frogs. After infection, the virus invades the central nervous system, including the brain and spinal cord. The illness can lead to a serious infection of the brain and can be fatal in 30 per cent cases. Among the survivors, another 30 per cent suffer from serious brain damage, including paralysis.
These statistics prompted Basu to spend most of his time studying the mechanism of inflammation in the brain in experiments on rodents. “When a person is infected with this virus, neurons start dying very quickly,’’ he explained. “Inflammation and the resulting damage to neurons is very different from inflammation in the liver, as neurons do not regenerate and the damage is permanent.’’
“Microglia — cell that kills bacteria and virus during viral infections in the brain — plays a crucial role as it initiates the process of inflammation. My focus is to find a way to reduce the microglial activation so that the neurons are not damaged.’’
After postdoctoral studies at the Pennsylvania State University College of Medicine, USA, Basu returned to India to work on diseases in developing nations.