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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June 6,2020

Mumbai, Jun 6: Reminiscing about his 'special knock' of 208 runs from 153 balls, Indian cricketer Rohit Sharma revealed why his wife Ritika had got emotional after he smashed his third double century in ODIs.

Rohit narrated the incident during his appearance in Episode 2 of the 'Open nets with Mayank'.

The batsman, who was accompanied by Shikhar Dhawan and Mayank on the show, said his wife thought that he had twisted his hand while diving for the 196th run during the innings.

"As you can see my wife got emotional there, this day was special as it was my anniversary. Probably the best gift I could give it to her while I am on the field, it was quite emotional though," said Rohit during the candid chat.

"When I came from the ground, I just asked her why did you (Ritika) cry? So she told me that she thought I (Rohit) twisted my hand when I dived for my 196th run and that was a little worrying factor for her, she got little emotional of because of that I guess," Rohit added.

In the match, the 32-year-old scored 208 runs with 13 fours and 12 sixes against Sri Lanka at Punjab Cricket Association IS Bindra Stadium in Mohali.

This enabled India to post a score of 392/4 in the allotted fifty overs.

India then went on to win the match by 141 runs.

"To be honest I was going pretty slow, I never thought I will get to a double hundred but once you cross 125, I feel it gets easier for you because bowlers are under pressure. Unless you make a mistake I don't think you can get out," said Rohit.

Rohit has scored two double hundreds against Sri Lanka and one against Australia in ODIs. The right-handed batsman is the only cricketer to make three double hundreds in ODI history.

Rohit, Shikhar, and Mayank would have been in action for Mumbai Indians, Delhi Capitals, and Kings XI Punjab respectively, had the Indian Premier League (IPL) commenced from March 29. However, the tournament was suspended indefinitely due to the coronavirus pandemic.

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May 6,2020

May 6: They have similar impact on their teams but Virat Kohli is driven by sheer passion to subdue the rivals while Steve Smith just enjoys batting, says Australia opener David Warner.

India skipper Kohli and top Australian batsman Smith are arguably the top two cricketers of the current era. They achieve new milestones consistently, invoking debates, who is better between them.

"Virat's passion and drive to score runs is different to what Steve's would be," Warner said while speaking to Harsha Bhogle on 'Cricbuzz in Conversation'.

"Steve is going out there for a hit in the middle, that's how he sees things. He's hitting them out in the middle, he's having fun, he's enjoying himself, just does not want to get out."

Warner feels, while Kohli is batting he is aware that if he sticks around the middle his team will be on top of the proceedings.

"Virat obviously doesn't want to get out but he knows if he spends a certain amount of time out there, he's going to score plenty of runs at a rapid rate. He's going to get on top of you. That allows the guys coming in, especially in the Indian team you've got a lot of players who can be flamboyant as well."

The Australian opener added that both men are mentally strong and a good knock by them boosts the morale of the entire team.

"When it comes to cricket, they both have got the mental strength, the mental capacity to score runs. They both love spending time in the middle.

"They stabilise, they boost morale - if they score runs, everyone else's moral is up. If they are out cheaply you almost sense that on the field that everyone is (down on morale and thinking) 'now we all have to step up'. It's a very bizarre situation," he added.

Asked about the similarities between himself and Kohli, who are both live wires on the field, Warner said the passion to do better than the opponent keeps him going.

"I can't speak for Virat, obviously, but it's almost like we got this thing in us when we go (out to the middle) we need to prove people wrong, prove someone wrong."

"If you're in that contest, and if I'm going at him for example, you're thinking, 'Alright, I'm going to score more runs than him, I'm going to take a quick single on him'. You are trying to better that person in that game. That's where the passion comes from."

Warner also explained how he breaks down a match into smaller competitions.

"Obviously you want to win the game but you almost break it down to: If I can score more runs than Virat, or if Pujara scores more runs than Steve Smith, you have these little contests and that's how you try to narrow the game in the sense that if we do these little things, we can be ahead of the game or we can be behind the game.

"The passion is driven by...I know my sense - one, the will to win and two, wanting to do better than that person in the opposition," said Warner.

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February 10,2020

Potchefstroom, Feb 10: India's under-19 cricket team manager Anil Patel says the ICC has taken a serious view of the aggressive celebrations by Bangladesh players after their World Cup triumph and will be reviewing the footage of the final game's "last few minutes".

Some Bangladeshi players got carried away while celebrating their historic three-wicket win over India in the final on Sunday. While their captain Akbar Ali apologised for the "unfortunate incident", his Indian counterpart Priyam Garg said their reaction was "dirty".

"We don't know what actually happened," Patel told 'ESPNCricinfo' on Sunday.

"Everybody was in a shock, absolutely, but we don't know what happened exactly. The ICC officials are going to watch the footage of the last few minutes and they are going to let us know," he said.

Even when the match was on, the Bangladesh players were overly aggressive while fielding and their lead pacer Shoriful Islam sledged the Indian batsmen after every delivery.

As soon as the match ended, it became tense with Bangladeshi players rushing to the ground and displaying aggressive body language. The two teams nearly came to blows before the situation was defused by the coaching staff and on-field officials.

Patel claimed that match referee Graeme Labrooy met him and expressed regret at what transpired on the field.

"The referee came to me. He was sorry about the incident. He clarified the ICC is going to take very seriously what has happened during the match and the last session. They are going to witness the footage and they will tell us in the morning (Monday)."

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