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.

Comments

Add new comment

  • Coastaldigest.com reserves the right to delete or block any comments.
  • Coastaldigset.com is not responsible for its readers’ comments.
  • Comments that are abusive, incendiary or irrelevant are strictly prohibited.
  • Please use a genuine email ID and provide your name to avoid reject.
News Network
March 19,2020

Geneva, Mar 19: Regional Olympic officials are rallying around the IOC and have backed its stance on opening the Tokyo Games as scheduled, as direct criticism from gold medalist athletes built amid the coronavirus outbreak.

Leaders of continental Olympic groups praised the IOC after a conference call Wednesday to update them on coronavirus issues four months before the opening ceremony in Tokyo on July 24.

"We are living through an unpredictable crisis and as such, it is important that we have one policy, expressed by the IOC, and we follow that policy in unison," the Italy-based European Olympic Committees said.

However, when the International Olympic Committee published an interview with its president, Thomas Bach, after a separate call with athlete representatives, it prompted a four-time Olympic champion to urge postponing the games.

Bach acknowledged that many athletes were concerned about qualifying events being canceled, but noted that there were still four months to go until the games are set to be opened.

"We will keep acting in a responsible way in the interests of the athletes," Bach said.

British rowing great Matthew Pinsent wrote on Twitter that the comments from Bach, his former IOC colleague, were "tone deaf."

"The instinct to keep safe (not to mention obey govt instructions to lock down) is not compatible with athlete training, travel and focus that a looming Olympics demands of athletes, spectators organisers," Pinsent wrote.

Responding to the criticism from Hayley Wickenheiser, a four-time Olympic hockey gold medalist, the IOC said it was "counting on the responsibility and solidarity of the athletes."

Members reinforce faith in IOC

The IOC repeated its steadfast stance after a conference call with sports governing bodies, many of which have not completed qualification events for Tokyo.

"There is no need for any drastic decisions at this stage; and any speculation at this moment would be counter-productive," the IOC said.

That message was repeated after Wednesday's conference call by IOC executive board member Robin Mitchell, the interim leader of the group of national Olympic bodies known as ANOC.

"We share the view that we must be realistic, but not panic," Mitchell said in a statement released by the IOC on behalf of the Oceania Olympic group.

Offering unanimous support for the IOC's efforts to resolve qualification issues, the 41-nation Pan-American group noted challenges facing potential Olympians.

Australian Olympic Committee chief executive Matt Carroll said his organized recognized there was a global health crisis, but equally was assured by the IOC that the games would go ahead.

"We recognize people are suffering -- people are sick, people are losing jobs, businesses are struggling amid enormous community uncertainty. Things are changing everyday and we all must adapt," Carroll said.

"We owe it to our Australian athletes to do everything we can to ensure they will participate with the best opportunity in those Games."

Australia's team delegation leader said the focus now was "moving to the planning of our pre-Games preparation to ensure we get our athletes to the Games healthy, prepared and virus free."

"Clearly that is a major challenge for all National Olympic Committees," he said.

Comments

Add new comment

  • Coastaldigest.com reserves the right to delete or block any comments.
  • Coastaldigset.com is not responsible for its readers’ comments.
  • Comments that are abusive, incendiary or irrelevant are strictly prohibited.
  • Please use a genuine email ID and provide your name to avoid reject.
News Network
February 21,2020

Wellington, Feb 22: shant Sharma's lion-hearted bowling effort met its match in Kane Williamson's elegance as New Zealand ended an attritional second day of the opening Test against India with a slight upper-hand, here on Saturday.

After another lower-order collapse that saw India get bundled out for 165, Ishant, coming straight back from an ankle injury, took three for 31 in 15 overs despite Williamson's effortless 89 in New Zealand's day-end score of 216 for 5.

New Zealand now lead by 51 runs.

Mohammed Shami (1/61 in 17 overs), during his final spell of the day, removed Williamson, who couldn't check an uppish drive. Henry Nicholls' (17 off 62 balls) struggle seemed to have hampered Williamson's rhythm.

During the final hour, Ravichandran Ashwin (1/60 in 21 overs), who also bowled beautifully throughout the day, relieved Nicholls' of his agony with a delivery that had drift and a hint of turn as India skipper Virat Kohli snapped the low catch at second slip.

Williamson looked good as he hit some delightful strokes square off the wicket. The square drive on the rise off Jasprit Bumrah (0/62 in 18.1 overs), followed by a cover drive, showed his class.

In all, the New Zealand skipper hit 11 boundaries off 153 balls.

Bumrah, in particular, was punished by Williamson, who also back-cut him for a boundary and Taylor then punished another half volley through the covers.

There were quite a few loose deliveries on offer from the Indian pacers and in between a few did beat the bat. With the 'Basin' baked in sunshine, batting became lot more easier and Black Caps seized the initiative.

Bumrah, in particular, failed to find his length consistently. Either he bowled too full and drivable length deliveries or too short that even Rishabh Pant failed to gather with the ball going a couple feet over his head.

This is where Ishant came into the picture. While he was lucky to get opener Tom Latham out with a delivery drifting on leg-stump, the other opener Tom Blundell (30) had a typical Ishant dismissal written all over it.

The ball was full on the off-stump channel and jagged back enough to find the gap between his bat and pad.

Williamson and Taylor then had a partnership of 93 runs during which New Zealand also got the lead before Ishant, coming back for his third spell, bowled one that reared up from good length and proved to be an easy catch for Cheteshwar Pujara at short-leg.

Once Nicholls came in, Williamson, who was batting fluently, suddenly had a player at the opposite end who scored only 4 off 34 balls.

Looking good for his 22nd Test hundred, Williamson, in his bid to get another boundary, couldn't check a cover drive and the low catch was taken by substitute fielder Ravindra Jadeja.

Earlier, New Zealand's debutant Kyle Jamieson and veteran Tim Southee took four wickets apiece as Indian innings folded in 68.1 overs.

Jamieson (4/49 in 16 overs) and Southee (4/49 in 20.1 overs) took four of the five wickets that fell on the second morning with India adding only 43 runs to their overnight score of 122 for 5.

Rishabh Pant (19) started with a six but then a horrible mix-up with senior partner Ajinkya Rahane (46) resulted in a run-out and the little chance of recovery was gone for good.

It was a poor call from the senior player and Pant had to sacrifice his wicket in the process.

Ashwin then received a beauty from Southee, pretty similar to what Prithvi Shaw got, while Rahane inside edged one while trying to leave it alone.

With India at 132 for 7, Rahane knew that time was running out as he played a square drive off Trent Boult to get him a boundary.

Southee then got rid of Rahane when he tried to shoulder arm a delivery that made a late inward movement. Mohammed Shami's entertaining 21 then enabled the visitors to cross the 150-run mark.

Comments

Add new comment

  • Coastaldigest.com reserves the right to delete or block any comments.
  • Coastaldigset.com is not responsible for its readers’ comments.
  • Comments that are abusive, incendiary or irrelevant are strictly prohibited.
  • Please use a genuine email ID and provide your name to avoid reject.
News Network
February 11,2020

Melbourne, Feb 11: Opener David Warner received Allan Border Medal, while all-rounder Ellyse Perry bagged Belinda Clarke medal in the 2020 Australian Cricket Awards on Monday.

Warner secured his third (2016, 2017, 2019) Allan Border Medal and Perry a trio of Belinda Clarke Awards (2016, 2018, 2019) as voted by their peers, umpires and the media across all forms and every game of international cricket in 2019.

Warner dominated the ICC World Cup with 647 runs including a highest score of 166 at an average of 71.88, including three centuries. He then rebounded from a challenging Ashes series to dominate at home in the T20I series against Sri Lanka and Pakistan, the Test series against Pakistan - which included his memorable innings of 335 not out in Adelaide - and the Test series against New Zealand.

Warner (194) outpolled Ashes hero Steve Smith by a single vote for the Allan Border Medal with paceman Pat Cummins, the ICC International Cricketer of the Year, third in the polling with 185 votes.

Perry enjoyed an incredible year with both bat and ball, starting with dominant Ashes performances which included an innings of 116 in the Test in Taunton and 11 wickets in the three ODIs.

Her figures of 7-22 at Canterbury were the best ODI figures by an Australian woman's player. She backed that up against the West Indies by taking 3-17 in the opening ODI and then scoring 112 not out in Antigua before finishing the year with a solid series against Sri Lanka at home. Perry (161) was a comfortable winner of her third Belinda Clarke Award from Alyssa Healy (153) and Jess Jonassen (87) taking second and third place respectively in the voting.

Breakout batsman Marnus Labuschagne's superlative Test summer and Ashes series secured him the Male Test Player of the Year. Having replaced Steve Smith as a concussion substitute in the Lord's Test, Labuschagne went on to make 353 runs at 50.42 in the Ashes.

His outstanding form continued at home with a first-up 185 against Pakistan at the Gabba and a Test high 215 against New Zealand in Sydney. He scored 347 runs at an average of 173.5 against Pakistan and 549 runs at 91.5 against New Zealand. Limited overs captain Aaron Finch (38) capped a stellar year by being voted the Men's One-Day International Player of the Year ahead of Usman Khawaja (33) and Warner (24).

Finch's year included a massive series against Pakistan in the UAE with 451 runs at 112.75, including knocks of 116, 153 not out and 90. He then dominated the World Cup with 507 runs at 50.7, including 153 against Sri Lanka and 100 against England at Lords. Warner (19) continued his magical year in the T20I game to become the Men's T20 International Player of the Year from Glenn Maxwell (16). Kane Richardson and Steve Smith (8) tied for third.

Alyssa Healy claimed top honours as the women's One-Day International Player of the Year with 39 votes ahead of Perry (33) and Jonassen (19). Healy scored a double by also claiming the women's T20 Player of the Year with 18 votes, ahead of Jonassen and Meg Lanning who were tied on 15. It was the second consecutive year that Healy has won the women's ODI and T20 Awards.

West Australian veteran Shaun Marsh was voted Men's Domestic Player of the Year with 1322 runs at 52.88 in all forms of the game, including the highest score of 214, while breakout paceman Wes Agar was named the Bradman Young Cricketer for his 41 wickets at 22.62 in the year.

Molly Strano and Tayla Vlaeminck took the prized Women's Domestic Player of the Year and Betty Wilson Young Cricketer of the Year awards respectively.

Strano took 28 wickets in 22 games while Vlaeminck's 19 wickets for the year reinforced her enormous potential.

Former Hobart Hurricane Corrine Hall was named Community Champion for her work as an Ambassador of the Kindness Factory, grassroots cricket, and upcoming book Victress, which features 35 iconic female athletes and their stories. Each portrait is accompanied by the athlete's story, with a particular focus on how kindness impacted their journey.

The awards for international cricket are based on votes from players, umpires and the media on a 3-2-1 basis from each match. For the domestic awards, the votes are collected from all players.

Comments

Add new comment

  • Coastaldigest.com reserves the right to delete or block any comments.
  • Coastaldigset.com is not responsible for its readers’ comments.
  • Comments that are abusive, incendiary or irrelevant are strictly prohibited.
  • Please use a genuine email ID and provide your name to avoid reject.