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
June 2,2020

Bengaluru, Jun 2: Bangladesh opening batsman Tamim Iqbal has said that he was ashamed on seeing the training regime of Indian skipper Virat Kohli.

Iqbal said that the incident happened two-three years back as he thought to himself that why he cannot do the same even when he is the same age as Kohli.

"I must say this, it is not because I am talking to an Indian commentator, India is our neighbour so whatever things they do, it affects Bangladesh as well. We follow what is happening in India, when India changed its approach towards fitness, it impacted Bangladesh the most," Iqbal told Sanjay Manjrekar in a videocast hosted by ESPNCricinfo.

"I have no shame in admitting this, when I saw Virat Kohli running around two-three years ago, I was ashamed of myself, I thought this is a guy who is probably my age, but he is training so much and I have not doing even half of it. We have a great example in our team as well, Mushfiqur Rahim manages himself well regarding fitness," he added.

During his initial days of international cricket, Kohli was fond of chicken which he has admitted several times during media interaction.

But in 2013, the 31-year-old batsman intentionally shifted his focus to fitness, diet, and training.

Now he has become punctual about his diet which has given him a different character on and off the field.

The comparisons between Kohli and Sachin Tendulkar have also kept on growing and many have picked the current Indian skipper to break the records set by Tendulkar.

Tendulkar managed to call time on his career after registering 100 international centuries, while Kohli currently has 70 centuries across all formats.

Currently, Kohli is ranked at the top spot in the ICC ODI rankings while he is in the second place in Tests rankings.

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News Network
March 3,2020

Sydney, Mar 3: Former Australia pacer Brett Lee foresees a "different" looking India making their maiden T20 Women's World Cup final and attributed their rise to the emergence of star players like 16-year-old Shafali Verma.

Besides opener Shafali, experienced leg-spinner Poonam Yadav has been the other match-winner for India in the competition. The Harmanpreet Kaur-led side topped the group stage with four wins in as many games and play their semifinal here on Thursday.

"They've never reached the final but this is a different India team from the one they’ve seen before. They've combined match-winners in Shafali Verma and Poonam Yadav with consistent players with both bat and ball," Lee was quoted as saying by ICC.

"We've always known they have some of the best players in the world but now Harmanpreet Kaur has a team around her that can support the big players, and fill in the gaps when they have an off day."

Only a special effort from their opponents can stop India from reaching their maiden final, feels Lee.

They'll go into the semi-finals full of confidence and it will take an excellent team to stop them from reaching the Final."

Talking more about Shafali, who has got 47, 46, 39, and 29 so far, Lee backed the teen sensation to make a bigger score in the semifinal.

"Shafali Verma has been excellent at the top of the order, she’s brought a fearless energy to India’s batting and been brilliant to watch.

"You feel she can go even bigger as well – she hasn't reached 50 yet, which is both exciting for those watching and worrying for the bowlers.

"We saw from the opener against Australia just how good India can be, and it’s no surprise they’ve continued that form to top Group A," he added.

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Agencies
July 7,2020

Mumbai, Jul 7: Australias second largest city Melbourne is set to go for another round of lockdown — for six weeks — from midnight Wednesday as the coronavirus has reared its ugly head in Victoria. And this has further confirmed that this years T20 World Cup in Australia is practically not possible. Even as the ICC keeps delaying the announcement, BCCI hopes that the official call will now be taken with this latest development.

Despite ICC's Financial and Commercial Affairs Committee (F&CA) chief Ehsan Mani as well as Cricket Australia making it clear time and again that hosting a T20 World Cup in the October-November window is practically impossible, the ICC hasn't made an official announcement and that hasn't impressed the Board of Control for Cricket in India (BCCI).

Speaking to media persons, a BCCI official said that it is only the ICC which has kept speaking about delaying the inevitable — announcing a postponement — even as Cricket Australia chairman Earl Eddings wrote to the international body that it looks highly unlikely that a T20 World Cup can be hosted in these trying times.

"As it is there were so many logistical difficulties and that is perfectly understandable. The Australian government has been addressing the public health issue efficiently and there are regulations in place which are crucial to address the challenges. In that background even Cricket Australia has been practical in their assessment of the situation.

"With this present situation where Melbourne is in lockdown, the ICC really must take the final call of closure on the issue if they have any concept of responsible decision making," the official said.

Not just CA chairman Eddings, but also Mani — who is also the PCB chief — recently told the media that the T20 World Cup cannot be held in a bio-secure environment.

"We have had a lot of discussions and the feeling is it (T20 World Cup) would not be possible this year. ICC has World Cups lined up in 2021 and 2023, so we have a gap year where we can adjust this event. God forbid if some player(s) falls ill or mishap occurs during the tournament, it will have a big impact and create panic in the cricket world and we can't take that risk. Having a bio-bubble environment is feasible for say a bilateral series like Pakistan in England, but it is very difficult when 16 teams are involved," he had said.

Cricket Australia's interim CEO Nick Hockley echoed the sentiments when he said the biggest challenge was to get the players from so many teams into the country.

"Our biggest challenge is getting 15 teams into the country. If I compare it with the prospect of a bilateral tour, you're talking about bringing one team in and then playing individual matches. But the prospect of bringing 15 teams in and having six or seven teams in one city at the same time, it's a much more complex exercise," he had said.

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