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
May 30,2020

New Delhi, May 30: Former world chess champion Viswanathan Anand will be finally reaching India late on Saturday after being stuck in Germany for over three months due to the travel restrictions imposed in the wake of the COVID-19 pandemic.

"Yes.. Anand will be returning today," the chess maestro's wife Aruna told PTI on Saturday morning. Anand, who boarded an Air India flight (AI-120) from Frankfurt on Friday night will reach Bengaluru via Delhi.

He is expected to reach Bengaluru at 1.15 pm. The five-time world champion will undergo 14 days quarantine as per rules laid down by the Karnataka government.

"He will complete quarantine procedures and come to Chennai as per protocol," Aruna Anand said. The flights from Germany are only scheduled to land only in Delhi and Bengaluru.

The chess ace was in Germany to play in the Bundesliga chess league and was to return to India, but was forced to stay put after the COVID-19 outbreak disrupted sporting schedules across the globe, apart from restricting movement.

He was staying near Frankfurt and was doing online commentary for the Candidates tournament which was called off mid-way due to the pandemic and led the Indian team in the Online Nations Cup early this month.

Anand had been in touch with his family in Chennai on a regular basis via video calls and kept himself busy with chess-related work.

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Agencies
March 25,2020

Lausanne, Mar 25: The World Archery has hailed as a 'brave decision' the International Olympic Committee (IOC) move to postpone the 2020 Tokyo Olympics until next year due to coronavirus pandemic.

"We commend the conscientious and brave decision taken by Tokyo 2020 and the International Olympic Committee to delay this summer's Games in the face of an unprecedented challenge to humanity," Ugur Erdener, the World Archery president, said in an official statement.

The decision to postpone the Summer Olympics was confirmed by the IOC, on Tuesday, after the organising body for the event and Japan's Prime Minister Shinzo Abe agreed to reschedule the quadrennial event in view of the COVID-19 pandemic.

"This is not an easy situation, especially for the athletes who had been training hard for Tokyo 2020. I hope that everyone understands why this decision has been made and I urge archers around the world to retain hope and reset for this new timetable," he added.

The IOC has, however, said that the original name of Tokyo 2020 will remain intact irrespective of the fact that it will take place next year.

The Tokyo Olympic Games were slated to be held from July 24 to August 9.

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News Network
January 31,2020

Wellington, Jan 31: A nervous New Zealand threw it away yet again as a perseverant India prevailed in the Super Over for the second successive time to take a 4-0 lead in the T20 International series on Friday.

Needing just 11 runs off the last two overs with seven wickets in hand, New Zealand dug a hole for themselves yet again, taking the game to a Super Over two nights after doing the same in Hamilton.

New Zealand managed 13 runs in six balls and India got there effortlessly.

KL Rahul smashed 10 runs off the first two balls before he was caught. Then, a fired-up Virat Kohli and Sanju Samson finished the game in style.

Earlier, Manish Pandey proved his value to the team with an unbeaten 50 off 35 balls, taking India to 165 for eight from 88 for six in the 12th over.

India's total wasn't enough considering the batting-friendly conditions but the hosts made life a lot tougher for themselves from a commanding position before succumbing to pressure.

The entertaining knocks from Colin Munro (64 off 47) and Time Seifert went in vain (57 off 39).

Mohammed Shami, who was rested on Friday, had bowled a brilliant 20th over on Wednesday and man of the match Shardul Thakur was up to the task this time, conceding just six runs when the opposition needed seven for victory.

With the series already in the bag, India gave opportunity to Sanju Samson, Washington Sundar and Navdeep Saini for the first time in the five-match series, resting Rohit Sharma, Ravindra Jadeja and Shami. However, none of them was able to make an impact in the game.

Chasing 165, New Zealand lost Martin Guptill early. But Munro and Seifert put on 74 runs for the second wicket to put themselves on track.

Munro scored a half-century of 38 deliveries, inclusive of six fours and three sixes. He was out against the run of play as Kohli's direct hit surprisingly found the target after a relay throw from the deep.

It was the turning point as New Zealand lost regular wickets. Yuzvendra Chahal bowled Tom Bruce (0), but Seifert found a partner in Ross Taylor as they pushed the score past 150 in the 18th over.

Seifert scored a half-century off 32 balls, including four fours and three sixes. But the great choke was yet to come again. Needing 18 off 18, the Black Caps lost four wickets in the last over bowled by Thakur.

Taylor holed out of the first ball, while Seifert was run out two balls later. Daryl Mitchell (4) was caught next and Mitchell Santner (2) couldn't steal two runs off the last ball as the sides engaged in a tie-breaker for the second game running.

This was after New Zealand won a fourth consecutive toss and opted to field. Kane Williamson didn't take part in the match owing to a shoulder niggle.

Tim Southee was the stand-in skipper, with the Black Caps making two changes.

Put in to bat, the visitors were struggling at 88-6 at one stage before Pandey's lonesome rescue act took them to a respectable total. KL Rahul contributed 39 runs off 26 balls, inclusive of three sixes and two fours.

Leg spinner Ish Sodhi got into the act and ran through India's batting order. First to go was Shreyas Iyer (1) and then Shivam Dube (12) was caught at mid-wicket.

Sodhi finished with 3-26 while Santner dismissed Sundar for nought as the New Zealand spinners rounded up a good outing with 4-54 in eight overs.

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