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
June 13,2020

Melbourne, Jun 13: Former Australia wicketkeeper-batsman Adam Gilchrist and current opener David Warner have expressed gratitude to two Indian students for helping people in the country during the COVID-19 pandemic.

Gilchrist thanked Sharon Varghese, an Indian student who did her Bachelors in Nursing from the University of Wollongong.

Varghese has been was working on the frontline along with other health care workers to look after the residents of aged-care during the global health crisis.

"She gave up her time to work as an aged-care worker throughout that time. Sharon, I want to say congratulations on the selfless act and for wanting to thank people in Australia because you have enjoyed three and a half years living here. And that’s wonderful to hear," Gilchrist said in a video message.

"Just want to let you know, all of Australia, all of India and more importantly, your family will be so very proud of your efforts."

In another short video, Warner thanked Queensland-based Indian student, Shreyas Sheth.

"Namaste. I am here to say thank you to Shreyas Sheth who is doing selfless work to help others during the COVID crisis. Shreyas is doing his Masters in Computer Science at the University of Queensland and he has been part of University’s outreach program, preparing and delivering food packets to students in need right now," Warner said in the video.

"So I just want to say ‘good on ya’. I am sure your mum and dad and India are proud of you. Keep up the great work."

The videos were shared by Austrade India official twitter account, which have hit almost 10 thousand views in last one week.

Apart from the two cricketers, another Social Media Influencer Amy Aela also sent her thank you note to Liya, an Indian student from Griffith university for her work in providing mental health support to communities in Australia during the pandemic.

"Liya I just want to thank you...we definately need more people like you...just remember that Australia is so so proud of you, India is proud of you..please keep up the good work," Aela said.

Former Australian footballer Craig Foster also sent his thank you message to another Indian origin nurse Arushi from Deakin University. More than 100,000 Indian students are studying in Australia, currently making them one of the biggest cohorts of international students in the country.

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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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News Network
June 27,2020

Jun 27: India's Test batting mainstay Cheteshwar Pujara cannot describe in words the influence that Rahul Dravid has had on his life but says he will always remain grateful to him for teaching the importance of switching off from cricket.

Often compared to Dravid, who was considered the 'wall' of Indian cricket, Pujara said he is thankful to Dravid for teaching him how to keep personal and professional lives separate.

"He helped me understand the importance of switching off from cricket. I had the same thought, more or less, but when I spoke to him, it gave me a lot of clarity about it and I was sure of what I needed to do," he told ESPNcricinfo.

"I also saw in county cricket how they keep personal and professional lives separate. I value that advice a lot. Many people consider me to be focused. Yes, I am focused, But I also know when to switch off. There is life beyond cricket."

In his illustrious international career, Dravid amassed 13288 runs in 164 Tests and 10889 runs in 344 ODIs. He also captained India in 79 ODIs, winning 42 of them, which includes the world record of 14 successive wins while chasing.

"I cannot say in one line what Rahul bhai means to me. He has always been an inspiration, and will remain one," Pujara said.

His mental fortitude and batting technique is often compared to Dravid but Pujara said "despite my enchantment with him" he never tried to "copy him."

"There is a similarity in our games, but that's not because of my fascination with him. That came mainly through my experiences with Saurashtra, where I learned that scoring a hundred alone isn't enough, you have to carry your team," he said.

"That is how I learned responsibility - it is about helping my team to raise a big total, and for that I ought to attach importance to my wicket. I learned that from my junior cricket days with Saurashtra, which was a weaker team in domestic cricket."

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