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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Agencies
February 7,2020

New Delhi, Feb 7: It was on February 7, 1999, that Anil Kumble became just the second bowler in the history of cricket to take all ten wickets in an innings of a Test match.

He achieved the feat against Pakistan at Feroz Shah Kotla Stadium, now known as Arun Jaitley cricket stadium in Delhi during the second Test of the two-match series.

India had set Pakistan a target of 420 runs in the match and the visitors got off to a steady start as openers Shahid Afridi and Saeed Anwar put on 101 runs for the first wicket.

It was then Kumble who came into the attack and wreaked havoc on the Pakistani batting line-up.

The spinner, also known as 'Jumbo' first dismissed Afridi (41) in the 25th over. After the right-handed batter's dismissal, India kept on taking wickets through Kumble and Pakistan was reduced to 128/6 in no time.

Kumble then kept on taking wickets at regular intervals and he got his tenth scalp in the 61st over after dismissing Wasim Akram.

This effort enabled India to register a win by 212 runs, and Kumble became the second bowler after England's Jim Laker to take all ten wickets in a single Test inning.

Kumble finished with the bowling figures of 10-74 from 26.3 overs.

Kumble announced his retirement from international cricket in 2008 and finished with 619 wickets in the longest format of the game.

He has the third-highest number of wickets in Tests, only behind Sri Lanka's Muttiah Muralitharan (800) and Australia's Shane Warne (708).

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Agencies
May 17,2020

Berlin, May 17: Top-flight football in Germany kicked off again on the weekend, becoming the first major sports league in the world to resume play, as parts of Europe took more tentative steps towards normality after the devastation unleashed by the coronavirus pandemic.

With the worldwide death toll past 310,000 and the global economy reeling from the vast damage caused by lockdowns, the reopenings in some of the hardest-hit countries provided much-needed relief from the pandemic.

The French returned to the beach and Italy announced a resumption of European tourism with outbreaks in Europe slowing, but the rising number of fatalities in the United States and Brazil were a grim reminder of the scale of the crisis, with more than 4.6 million infections reported globally.

With governments trying to reopen their economies while avoiding the second wave of infections that could necessitate more lockdowns, Germany's Bundesliga resumed its season on Saturday with games played in vacant, echoing stadiums.

League heavyweights Borussia Dortmund hosted rivals Schalke at the all-but-empty Signal Iduna Park -- which would usually be packed with more than 80,000 raucous fans.

"It's sad that matches are played in empty stadiums, but it's better than nothing," said 45-year-old Borussia Dortmund fan Marco Perz, beer in hand, as he prepared to watch the game on TV.

Dortmund's Erling Braut Haaland became the first player to score a goal after the two-month shutdown and celebrated by dancing alone -- away from his applauding teammates -- in keeping with the strict hygiene guidelines which allowed the league to resume.

The only noise was the cheering and clapping of players and coaches.

League champions Bayern Munich will play Union Berlin in the capital on Sunday, with the resumption in Germany seen as a test case as other top sports competitions try to find ways to resume play without increasing health risks.

"The whole world will be looking at Germany, to see how we get it done," said Bayern boss Hansi Flick.

Prime Minister Giuseppe Conte of Italy, however, said Saturday he needed more guarantees before the government can give the green light for the resumption of its top football league, which is struggling with logistical difficulties as clubs try to arrange training sessions and quarantine facilities.

With the Northern Hemisphere's summer approaching, authorities are moving to help tourism industries salvage something from the wreckage.

Italy, for a long stretch the world's worst-hit country, announced that European Union tourists would be allowed to visit from June 3 and a 14-day mandatory quarantine would be scrapped.

"We're facing a calculated risk in the knowledge that the contagion curve may rise again," Conte said during a televised address.

"We have to accept it otherwise we will never be able to start up again."

In France, the first weekend after the strictest measures were lifted saw many ventures out into the spring sunshine -- and hit the beach.

In the Riviera city of Nice, keen swimmers jumped into the surf at daybreak.

"We were impatient because we swim here all year round," said retiree Gilles, who declined to give his full name.

With the threat of a second wave of infections on their minds, authorities in many countries have asked people not to throng public spaces like beaches as they are made accessible again.

Officials in parts of England on Saturday warned people to stay away from newly reopened beauty spots and avoid overcrowding.

Germany also saw the latest in a growing wave of anti-lockdown protests in many parts of the world, with rallies in major cities bringing together conspiracy theorists, anti-vaccine activists and other extremists.

There were similar protests in France, Switzerland and Poland.

Since emerging in China late last year, the coronavirus has whipped up a catastrophic economic storm, which has left tens of millions unemployed in the United States and many are wondering when a recovery will be possible.

With more than 88,000 deaths and 1.47 million confirmed coronavirus cases, the United States is the worst-hit country on the planet, and the administration of President Donald Trump has faced intense criticism of the way it has handled the crisis.

Former president Barack Obama took a swipe at the response to the pandemic, telling graduates at a virtual commencement ceremony that many leaders today "aren't even pretending to be in charge" -- a remark widely regarded as a rare rebuke of his successor.

Trump is keen to reopen the US economy -- the world's largest -- despite warnings from experts that infections could flare up again if social distancing measures are eased too quickly.

Forty-eight of the 50 US states have now eased lockdown rules to some extent.

Much like Trump and his political allies, Brazil's far-right President Jair Bolsonaro is also keen to end lockdowns, which he claims have unnecessarily damaged the South American nation's economy over a disease he has dismissed as "a little flu".

But the virus has continued its deadly march in Brazil, where the death toll passed 15,000 on Saturday and it became the country with the fourth-largest coronavirus caseload with 230,000 infections.

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News Network
May 19,2020

Karachi, May 19: Babar Azam wants to take a leaf out of Imran Khan's aggressive captaincy and besides cricket, he is also brushing up his English to become a "complete leader" like the World Cup-winning all-rounder.

Last week, the star batsman took over the reins of Pakistan's white-ball cricket after being appointed as the ODI skipper.

Azam, who was one of the world's leading batsmen across formats last year and already the T20 skipper, replaced wicket-keeper batsman Sarfaraz Ahmed as the ODI captain for the 2020-21 season.

"Imran Khan was a very aggressive captain and I want to be like him. It is not an easy job captaining the Pakistan team but I am learning from my seniors and I have also had captaincy experience since my under-19 days," Azam said.

He said that to be a complete captain one must be able to interact comfortably with the media and express oneself properly in front of an audience.

"These days I am also taking English classes besides focussing on my batting," he said on Monday.

The 25-year-old Babar said he was not satisfied with Pakistan's current standing in international cricket.

"I am not happy with where we stand and I want to see this team go up in the rankings."

Babar said captaincy would be a challenge for him but it would not affect his batting.

"It is an honour to lead one's national team so it is not a burden for me at all. In fact, after becoming captain, I have to lead by example and be more responsible in my batting."

Babar hoped the T20 World Cup is held this year in Australia as he wanted to lead his team in the ICC event.

"It would be a disappointment if the event was not held or rescheduled because I am looking forward to playing in the World Cup and doing well in it," he said.

About plans for Pakistan to fly to England in July to play three Tests and three T20 internationals amid the COVID-19 pandemic, Babar said a lot of hard work and planning would be required to make the players feel comfortable and safe.

"Touring England won't be easy. Health and safety of players is of great importance and the tour will only be possible when proper arrangements are in place," he said.

"Both England and Pakistan team fans, along with the cricketers, are missing cricket because of the pandemic."

"We will still try to perform to the best of our ability despite no support from the fans in the stadium," he added.

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