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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March 23,2020

Colombo, Mar 23: Sri Lankan batting great Kumar Sangakkara has said he is currently in self-quarantine, following his government's guidelines for those recently returning from Europe, which has now become the epicentre of the COVID-19 pandemic.

The authorities are concerned over people returning from the most-affected COVID-19 countries in Europe not registering with the police and practising isolation.

"I have no symptoms or anything like that, but I'm following government guidelines," Sangakkara told News First.

"I arrived from London over a week ago and the first thing was there was a news bulletin saying that anyone who had travelled from within March 1 to 15 should register themselves with the police and undergo self-quarantine. I registered myself with the police."

The former captain said this even as the government confirmed there have been at least three cases of recent returnees attempting to hide the novel coronavirus symptoms from authorities.

Both Sangakkara and his former teammate Mahela Jayawardene have been active on social media, urging Sri Lankans to avoid panic and to exercise proper social distancing, as the country went into curfew on Friday evening.

Sri Lanka has so far reported more than 80 active COVID-19 positive cases in the country.

Across the world, the number of infected has crossed three lakh besides a death toll of more than 14,000 people.

Meanwhile, former Australia pacer Jason Gillespie has also gone into a two-week isolation after returning from the United Kingdom.

Gillespie, who is the head coach at Sussex, had been in Cape Town with the team for a pre-season tour, which was cut short as a result of the coronavirus outbreak.

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April 25,2020

New Delhi, Apr 25: The love and loyalty of the fans will never let him leave Royal Challengers Bangalore till the time he is playing IPL, skipper Virat Kohli said on Friday.

RCB have reached the IPL final thrice but have not gone on to win the trophy.

During a live session on Instagram with former South African captain and RCB teammate AB de Villiers, Kohli said winning the tournament remains the goal but he would not leave the team irrespective of the results.

"It has been such an amazing journey. It is always going to be our dream, winning the IPL together. There is no scenario where I could think of leaving the team ever.

"You can feel emotional about the season not going well but till the time I am playing IPL, I am never leaving this team. The fans, their loyalty has been amazing," said the India skipper.

Responding to Kohli's feelings towards RCB, De Villiers too acknowledged the support of fans over the past nine years. Kohli, on the other hand, has been with RCB since 2008.

"Same for me. I never want to leave RCB but to do that I got to keep scoring runs. I am not the captain you see," said the South African in jest.

Both recalled their early days in international cricket and their growth as cricketers and friends.

Kohli said at times, the youngsters coming in have too much regard for the "system" and he wants to see them break the norm.

"I want to see youngsters coming in scoring 500-600 runs. I want people to break the norm. Sometimes I feel people have too much regard for the system in sport. When you break the shackles, you do something special."

Kohli also acknowledged contribution of Mark Boucher, Gary Kirsten and Duncan Fletcher early on in his international career.

"Gary always gave me positive feedback. Boucher told me in 2008 to improve my game against the short ball. He had the vision. Then Fletcher, he had a keen eye for the game. So many people who have contributed (to my growth)," said Kohli.

De Villiers picked the 119 at Wankhede in the 2015 series decider as his best knock against India. Kohli picked the 119 he scored in Johannesburg Test in 2013.

"I was always really motivated to win the series after 2-2 . I was incredibly motivated to do something special," de Villiers said.

They also picked their combined South Africa and India ODI team. It included Sachin Tendulkar, Rohit Sharma, Virat Kohli, Ab de Villiers, Jacques Kallis, M S Dhoni (captain), Yuvraj Singh, Yuzvendra Chahal, Dale Steyn, Jasprit Bumrah and Kagiso Rabada.

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June 5,2020

Jun 5: The Asian Football Confederation has awarded the hosting rights of the 2022 Women's Asian Cup to India for the first time since 1979.

The decision was taken at the AFC Women's Football Committee meeting. In February, the AFC Women's Football Committee had recommended India to be hosts.

In a letter to the All India Football Federation, Dato Windsor John, General Secretary, AFC wrote: "The Committee awarded the hosting rights of the AFC Women's Asian Cup 2022 Finals to the All India Football Federation."

The tournament will likely be held in the second half of the year. In the 1979 edition, India had finished as runners-up.

"I need to thank the Asian Football Confederation for finding us suitable to host the AFC Women's Asian Cup in 2022," AIFF President, Praful Patel said.

"The tournament will galvanise the aspiring women players and bring in a holistic social revolution as far as women's football in the country is concerned," he added.

The tournament will feature 12 teams, expanded from the previous slot of eight teams.

India qualifies directly as hosts. The event will also serve as the final qualification tournament for the 2023 FIFA Women's World Cup.

The tournament comes as the latest boost to AIFF as India is slated to host the FIFA U-17 Women's World Cup next year.

India had also hosted the AFC U-16 Championships in 2016 and the FIFA U-17 World Cup in 2017.

"The tournament will play a huge role in further popularising women's football in India. The Women’s Asian Cup 2022 comes on the back of the FIFA U-17 Women's World Cup India 2020, and will help us sustain, and build on the momentum gained," AIFF General Secretary, Kushal Das said.

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