In world record, Bolt triumphed over air

July 26, 2013

Bolt_triumphedParis, Jul 26: Scientists today said Usain Bolt performed a feat of biomechanics when he ran 100m in a record 9.58sec at the 2009 World Championships in Berlin.

Crossing the line in a time that is still a world record meant Bolt had to muster "truly extraordinary" power and energy to overcome exceptional drag, they said.

Taking into account the altitude of the Berlin track, the temperature at the time of the race and the resistance caused by Bolt's 1.95m (six feet five inch), 94-kilo (207-pound) frame, the researchers calculated he had a drag coefficient of 1.2, which is less aerodynamic than the average human.

Bolt hit peak power after only 0.89 seconds, expending 81.58 kilojoules of energy by the time he finished the race.

But 92.21 percent of this energy was used to overcome air resistance, according to a paper appearing in the European Journal of Physics. Only 7.79 percent was used to achieve motion. After 41 strides, he crossed the line at 43.92 kilometres (27.29 miles) per hour.

"The enormous amount of work that Bolt developed in 2009, and the amount that was absorbed by drag, is truly extraordinary," said scientist Jorge Hernandez from the National Autonomous University of Mexcio.

"It is so hard to break records nowadays, even by hundredths of a second, as the runners must act very powerfully against a tremendous force which increases massively with each bit of additional speed they are able to develop.

"This is all because of the 'physical barrier' imposed by the conditions on Earth. Of course, if Bolt were to run on a planet with a much less dense atmosphere, he could achieve records of fantastic proportions."

The team compared Bolt's time in Berlin with his previous world-record time, of 9.69sec, set during the 2008 Beijing Olympics. In Berlin, he benefited from a tiny tailwind of 3.23 kph (2 mph), the researchers found.

Without this boost, he would have come in at 9.68sec, thus beating the previous mark by 0.01sec. The analysis was made from data provided by the International Association of Athletics Federations (IAAF), whose laser tracker recorded Bolt's position and speed every 0.1 of a second in Berlin.

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News Network
February 24,2020

Feb 24: India captain Virat Kohli had no qualms in admitting that his team was outplayed by New Zealand in the opening Test but said they "can't help" if a few want to make a "big deal" out of the 10-wicket defeat. Hosts New Zealand thrashed India by 10 wickets at the Basin Reverse on Monday to go 1-0 ahead in the two-match series. This was India's first defeat in the World Test Championship, coming after two inept batting efforts. "We know we haven't played well but if people want to make a big deal out of it, make a mountain out of it, we can't help it as we don't think like that," the skipper said at the post-match media interaction.

Kohli said he fails to comprehend why one Test match defeat should be made to look like the end of the world for his team.

"For some people, it might be the end of the world but it's not. For us, it's a game of cricket that we lost and we move on and keep our heads high," Kohli said.

It is the acceptance of defeat that defines the character of a side, the world's premier batsman said.

"We understand that we need to play well to win, also at home. There's no cakewalk at international level as teams will come and beat you. You accept it and that defines our character as a side."

It is the acceptance of defeat that defines the character of a side, the world's premier batsman said. "We understand that we need to play well to win, also at home. There's no cakewalk at international level as teams will come and beat you. You accept it and that defines our character as a side."

If he had given credence to the "outside chatter", he said the team wouldn't have been where it is now.

"That's why we have been able to play this kind of cricket. If we would have paid attention to the outside chatter, we would again be at No. 7 or 8 in the rankings. We don't really bother about what people are saying on the outside," the skipper said.

One defeat can't make a team, which has been winning games of Test cricket, "bad overnight".

"If we have lost then we have no shame in accepting that. It means we didn't play this game well. It doesn't mean that we have become a bad team overnight. People might want to change our thoughts, but it doesn't work like that."

The self-belief is intact and Kohli was confident the team would come back stronger in the second Test, to be held in Christchurch in four days time.

"We will work hard, and after four days play just like we have played all these years. Just because we have lost one match in between all wins, doesn't mean that the belief is gone. The dressing room thinks differently and team atmosphere is different."

Kohli felt that there is a very thin line between being ultra-defensive and over-attacking, something that his team didn't get it right in this Test match.

"New Zealand got into the mind of the batsmen and make the batsmen do something that they don't want to. think that's a very thin line and a very delicate balance of when to attack and when to put bowlers under pressure which we failed to do in this match and there is no harm in accepting that."

According to Kohli, it was a combination of both good bowling from the Kiwis and Indian batsmen not putting the pressure back on bowlers, which led to the drubbing.

"That has got to do with partly good bowling from New Zealand and partly us not pressing that momentum on to them when required. "It was perfect for them because they bowled well and we allowed them to bowl well for longer periods rather than doing something about it in a partnership."

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Agencies
February 20,2020

New Delhi, Feb 20: Grappler Divya Kakran on Thursday became the second Indian woman to win a gold medal at the ongoing Asian Wrestling Championship.

Divya, a bronze medallist at Asian Games 2018, earned her first gold by winning all her four bouts against Kazakhstan, Mongolia, Uzbekistan and Japan.

Her final bout against Naruha Matsuyuki of Japan was the closest one but she managed to outclass her opponent 6-4 to seal her name on the gold medal. The 68 kg category was played in round-robin format as only five wrestlers were in the fray.

India is likely to add some more medals to its tally when Nirmala Devi, Pinki, and Sarita go out to grapple for the yellow metal in their respective weight categories.

Three-time Commonwealth championship gold medallist, Nirmala Devi (50 kg) first defeated Munkhnar Byambasuren of Mongolia in the quarterfinals by 6-4 to reach the semis.

In the semi-finals, Nirmala got the better of Dauletbike Yakhshimuratova of Uzbekistan by 10-0 and will play against 2018 Under-23 World Champion Miho Igarashi of Japan for the gold medal.

Pinki (55 kg) started her day on a winning note against Shokhida Akhmedova of Uzbekistan by 12-4 in round 3 and lost to Kana Higashikawa of Japan to enter the semis where she defeated Marina Zuyeva of Kazakistan by a score of 6-0.

Pinki will play in the gold medal bout against Dulguun Bolormaa of Mongolia.

Sarita (59 kg) will now face Battsetseg Altantsetseg of Mongolia in the gold medal bout after winning against her opponents in the qualifiers, quarterfinals and semi-final by a score of 10-0, 11-0 and 10-3, respectively.

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coastaldigest.com web desk
August 3,2020

The Board of Control for Cricket in India (BCCI) will not end its partnership with Chinese companies. Vivo, the Chinese smartphone maker, is the main sponsor of the new IPL season as well. Apart from Vivo, PayTM and Dream 11 will also be at the helm of the 13th edition of the IPL. The IPL governing council meeting on Sunday decided to retain the old sponsors.

As soon as the IPL GC announced the decision of retaining the sponsors, a huge number of fans took to Twitter to slam the board for the same. #BoycottIPL started trending as the users urged others to boycott the tournament for the Chinese connection.

Earlier, the demand for exclusion of Chinese companies from the IPL was strong in the wake of the India-China border dispute. But the BCCI cannot abruptly end its collaboration with them. Because of the signed contract itself. And in this age of declining economy, it is difficult to find new sponsors quickly.

The current BCCI contract with Vivo is for five years. Vivo has invested Rs 2,199 crore to become the main sponsor of the IPL. The contract was signed in 2017. However, the BCCI’s move is paving the way for new discussions as calls are mounting across the country to boycott Chinese companies.

The BCCI announced other important decisions besides retaining sponsors. The IPL will be held from September 19 to November 10. The Indian government has given permission to the BCCI to hold the IPL in the UAE. With this, all obstacles in the way of organizing the tournament were removed.

The IPL matches will be played at 7.30 pm Indian time (6 pm UAE time). Most matches are about one match a day. There are a total of ten ‘double headers’ (two matches a day) in the tournament. Franchisees are allowed to appoint as many replacements as they want in the new season in view of the new health situation. At the same time, the maximum number of players a franchise can accommodate is 24. The BCCI is also planning to host a women’s IPL tournament.

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