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
June 7,2020

Mumbai, Jun 7: The Mumbai airport became home for a 23-year-old Ghanaian footballer for 74 days after he got stranded there due to the coronavirus-induced lockdown that led to cancellation of flights.

The ordeal of Randy Juan Muller reminded people of Tom Hank's character in the Hollywood film "The Terminal", and it ended after Yuva Sena, the youth wing of the Shiv Sena, reached out to help him.

Muller has now shifted to a local hotel and is waiting for airlines to resume operations so that he can fly home.

The Mumbai International Airport Ltd (MIAL) also provided him all help, including food, and allowed him to use the airport WiFi network to make calls, an official said.

Muller, a Ghana national who used to play for a club in Kerala, was scheduled to fly home by Kenya Airways flight when the lockdown was announced and he found himself stranded at the Mumbai airport.

"He would spend his time at the airport's fancy artificial gardens and somehow buy food from stalls and pass his time with the airport staff. Muller told me the airport staff was very helpful," Yuva Sena office-bearer Rahul Kanal said.

A security officer at the airport gave him mobile phone to call his family back home.

A Twitter user brought Muller's plight to the notice of Maharashtra Tourism Minister Aaditya Thackeray following which Kanal reached out to the footballer and helped him move into a hotel.

On Saturday, Muller thanked Thackeray and Kanal for their help.

"Thank you Aaditya Thackeray, Rahul Kanal. Thank you very very so much. I appreciate what you have done. Salute," he said.

Kanal in a tweet said when he met Muller at the airport, the latter cried with happiness.

"Have no words to salute his willpower and fight for survival in such circumstances at this age," Kanal said.

An official at the Mumbai International Airport Ltd said the footballer was provided all help.

"All personnel at the airport, including from MIAL and CISF, gave him every possible help during his stay at the airport. Besides food, he was also allowed to use the airport WiFi network to make calls. Airport staff would recharge his phone at their own expense," the official said.

The 2004 film "Terminal" of Steven Spielberg was about a man stranded at a US airport after being denied entry into the country and a military coup back home.

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News Network
March 10,2020

New Delhi, Mar 10: Six-time world champion M C Mary Kom (51kg) and world number one Amit Panghal (52kg) were among three Indian boxers who secured Olympic berths by advancing to semifinals of the Asian Qualifiers here on Monday, taking the total number of the country's Tokyo-bound pugilists to eight.

Second-seeded Mary Kom notched up a comfortable 5-0 win over Philippines' Irish Magno in her quarterfinal bout for a ticket to her second Olympic Games. She won a bronze in the 2012 London Olympics when women's boxing was first introduced at the showpiece.

The 37-year-old will square off against China's Yuan Chang in the semifinals. Chang is a former Youth Olympics champion.

Earlier, world silver-medallist and top seed Panghal edged out familiar foe Carlo Paalam of Philippines in a 4-1 split verdict to be assured of his maiden Olympic appearance and a medal at the qualifiers.

In the last Indian bout of the day, world bronze-medallist Simranjit Kaur (60kg) upstaged second seed Namuun Monkhor of Mongolia 5-0 to secure her first Olympic place.

With this, the number of Indian boxers securing Olympic berths went up to eight after Satish Kumar (+91kg), Pooja Rani (75kg), Vikas Krishan (69kg), Lovlina Borgohain (69kg) and Ashish Kumar (75kg) advanced to the semifinals on Sunday.

"I dedicate my Olympic quota to my uncle Raj Narayan, it's his birthday and he is someone who gives me a lot of courage," said Panghal after his bout.

World bronze-winner and Commonwealth Games silver-medallist Manish Kaushik, however, lost 2-3 to third seed Chinzorig Baatarsukh of Mongolia after an intense battle but is not out of contention for an Olympic berth just yet.

Kaushik has to win the box-off between losing quarterfinalists as the top six boxers will claim Tokyo tickets in the 63kg category. He will face Australia's Commonwealth Games champion Harrison Garside in the box-off. The two clashed in the CWG final in 2018 with Garside ending up on the winning side.

Panghal started India's winning run on Monday by managing to pull off a close win.

The 23-year-old, who is the reigning Asian Games and Asian Championships gold-medallist, had earlier beaten Paalam in the semifinals of the 2018 Asian Games and the quarterfinals of 2019 world championships, which were also split decisions.

"I followed the instructions given by my coaches. I ensured that he didn't get on top of me. I think I was pretty consistent in all three rounds," Panghal said.

Next up for Panghal is China's Jianguan Hu, who stunned world bronze-medallist and fourth seed Kazakh Saken Bibossinov 5-0.

"I have beaten him in the Asian Championships and I know how to get the better of him," Panghal said of his next opponent.

The Haryana lad didn't exactly look at his best during the bout but his trademark counter-attacking game fetched him the desired result against a rival, who is challenging him more with every fresh encounter.

Mary Kom, on the other hand, put out a near-perfect performance against the very spirited Magno. The Manipuri dictated the pace of the bout, drawing from her huge reservoir of experience to put Magno on the backfoot with a very effective counter-attacking strategy.

Simranjjit, also an Asian silver-medallist, will face third seed Shih-Yi Wu of Taiwan in the semifinals after a fine performance against Monkhor. Simranjit's right hand connected accurately all through.

Kaushik, who was up against an Asian Games silver-medallist, started well but lost steam in the face of relentless body shots by Baatarsukh, a two-time podium finisher at the Asian Championships.

Baatarsukh had lost to Kaushik in the second round of the world championships last year and he exacted revenge with an aggressive takedown of the Indian, especially in the final three minutes.

However, former junior world champion Sakshi Chaudhary (57kg) failed to secure an Olympic berth after going down to Korea's Im Aeji in the quarterfinals.

The 19-year-old Chaudhary lost 0-5 to Im, who is also a former world youth champion. Only the semifinalists are entitled to an Olympic berth in the women's 57kg category of the ongoing event.

Her next shot at Tokyo qualification would be the world qualifiers in May, provided she is selected for it.

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News Network
February 11,2020

Mt. Maunganui (New Zealand), Feb 11: KL Rahul struck a combative 112 but New Zealand completed a 3-0 whitewash of India by winning the third ODI by five wickets, here on Tuesday.

Rahul helped India recover from a shaky start to post a challenging 296 for 7 but the Kiwis overhauled the target with 17 balls to spare.

This is the first whitewash that India has suffered in an ODI series in more than a decade.

Sent in to bat, India were down 62 for 3 in the 13th over after the dismissals of Mayank Agarwal (1), captain Virat Kohli (9) and Prithvi Shaw (40) but Rahul got a useful ally in in-form Shreyas Iyer (62) to take India to a competitive total.

Rahul, who hit nine fours and two sixes during his 113-ball innings, and Iyer stitched exactly 100 runs from 18.2 overs for the fourth wicket to revive the Indian innings.

After the end of the promising innings of Iyer, Rahul shared another 107 runs for the fifth wicket with Manish Pandey (42).

The Kiwis were off to a confident start in their chase with Martin Guptill (66) and Henry Nicholls (80) and putting on a 106-run stand. However, wrist spinner Yuzvendra Chahal took three wickets to bring India back in the game.

Colin de Grandhomme (58) and Tom Latham (32), though, took their side past the finish line with an unbeaten 80-run partnership.

Brief Scores:

India: 296 for 7 in 50 overs (KL Rahul 112, Shreyas Iyer 62; Hamish Bennett 4/64).

New Zealand: 300 for 5 in 47.1 overs. (H Nicholls 80, M Guptill 66; Y Chahal 3/47).

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