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
January 26,2020

Mumbai, Jan 26: Boxing great Mary Kom has been selected for the Padma Vibhushan, the country's second highest civilian award. Olympic silver medallist and reigning badminton World Champion PV Sindhu has been named for Padma Bhushan as the names of Padma awardees were disclosed on Saturday on the eve of the 71st Republic Day.

Rated as one of the most successful amateur boxers of all time, Mary Kom won bronze at the 2012 London Olympics and has won gold at the boxing World Championships for a record six times. She has won a total of eight medals at the World Championships, the most recent of which came in October 2019 in Ulan Ude, Russia. The 36-year-old is now looking to qualify for the 2020 Tokyo Olympics.

Sindhu became the only Indian woman to win an Olympic silver when she reached the final of the women's singles event at the 2016 Olympics in Rio de Janeiro, Brazi. In August last year, the 24-year-old became the first Indian to win gold at the badminton World Championships.

She has also won two silver and two bronze medals at the World's in the past, thus making her only the second woman after Chinese two-time Olympic gold medallist Zhang Ning to win five medals in the competition.

Indian women's hockey captain Rani Rampal, who has been the face of women's hockey in the country and played a pivotal role in the team qualifying for the 2020 Tokyo Olympics, is among those who have been nominated for the Padma Shri award.

Women's football stalwart Oinam Bembem Devi, former cricketer Zaheer Khan, shooter Jitu Rai, former hockey captain and coach M.P. Ganesh and archer Tarundeep Rai are the other sportspersons to be selected for the Padma Shri award.

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News Network
May 11,2020

Karachi, May 11: Pakistan might play more Test matches during their tour of England if it goes ahead as scheduled in July after the West Indies pulled out of an assignment there in June owing to the COVID-19 pandemic.

The Pakistan Cricket Board and the England and Wales Cricket Board officials are due to have a video conference on May 18 to discuss how they should proceed with the tour given the situation because of the pandemic.

"At present we have to play three Tests and three T20 internationals but the number of Tests could be increased and the tour could start a bit early in July," a PCB source said.

The source said that the ECB could offer to organise a four or five Test series against Pakistan if the West Indies tour didn’t go ahead.

Issues that are likely to be discussed in the May 18 meet are a quarantine period for Pakistani players when they arrive in England in July and limiting the venues for the matches and playing before empty stadiums.

PCB CEO Wasim Khan confirmed the video conference but said so far, the ECB has not spoken to them on increasing the number of matches on the tour which is scheduled between July and September.

"Things will be clear after the meeting but whatever decision we take we will consult our captains and head coaches before giving any confirmation," Khan said.

The PCB has so far kept mum on the chances of the series taking place in England because of the COVID-19 situation.

But with the British government due to announce measures to ease the lockdown in the country, it appears Pakistan could be touring on schedule.

Some former players have, however, asked the PCB to tread on the side of caution.

"If the West Indies have decided to postpone their series in June because of safety reasons and because of the situation then the PCB should also be very careful before taking up any offer from the ECB," a former captain said.

The West Indies Cricket Board said its players have to be convinced of their safety for it to commit to the assignment, which "is not possible in June."

"...we will continue our discussions with the ECB and other Internationals Boards on trying to find new dates," it said in a recent press release.

"We will only travel to England to play the series if our players can be assured that it is safe to do so," it added.

Pakistan is also scheduled to play an ODI series against Ireland while in UK but that series could be rescheduled and also be held in England.

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News Network
January 27,2020

Auckland, Jan 27: : K.L. Rahul made an unbeaten 57 Sunday to steer India to a seven-wicket win over New Zealand in the second Twenty20 international and to a 2-0 lead in the five-match series.

Rahul and Shreyas Iyer put on 86 for the third wicket as India cruised past New Zealand's total of 132-5 with 2.3 overs to spare. Shivam Dube (13 not out) hit a six from the bowling of Tim Southeein in the 18th over to lift India to 135-3.

Iyer made 58 not out and Rahul 56 as India beat New Zealand by six wickets with an over to spare in the first match of the series.

New Zealand made 203-5 batting first in that match but on Sunday, on the same pitch, it struggled to achieve any real momentum. During the second match the pitch played much slower and India bowled expertly to restrict New Zealand's total.

Martin Guptill made 33 in a 48-run opening partnership with Colin Munro and Tim Seifert made an unbeaten 33 at the end of the innings but New Zealand wasn't able to reach a total that could stretch India's deep batting lineup.

Rohit Sharma (8) and captain Virat Kohli (11) were out relatively cheaply but Rahul and Iyer (44) sped India towards a comprehensive victory.

Dube came to the crease shortly before the end and quickly brought the match to a conclusion.

"I think we backed up the first match with a very good performance today, especially with the ball," Kohli said. "We demanded that the bowlers stood up and took control of what we wanted to do out there.

"I think our line and length and the way we wanted to bowl on that wicket, sticking to one side of the wicket and being shorter was a very good feature of us as a team and helped us restrict a very good New Zealand team."

New Zealand's total was inadequate, even on a slower pitch, and India almost toyed with the home side as it made its way to a comfortable win.

New Zealand named the same team that lost the first match of the series and batted after winning the toss, just as it batted when it was outplayed in the first match of the series.

The match raised further questions about the coaching and captaincy of the New Zealand team after its humiliating test series loss in Australia last month. New Zealand showed again Sunday it hasn't the talent to compete with the best teams in the world.

"As a batting unit we probably needed another 15 or 20 to make that total more competitive," said New Zealand captain Kane Williamson. "But credit to the way the India side bowled, they're a class side in all departments and they put us under pressure throughout that middle period."

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