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 12,2020

New Delhi, May 12: Chennai Super Kings have rejected the idea of an IPL with only Indian players in the near future, differing with Rajasthan Royals, the franchise which is keen on the option given the circumstances caused by the COVID-19 pandemic.

The IPL, which is indefinitely postponed, can be held in the September-October window if the scheduled T20 World Cup in Australia doesn't take place.

"CSK is not keen to do an IPL with only Indian players. That way it would be playing another Syed Mushtaq Ali Trophy (domestic T20 competition). The franchise has not been in touch with the BCCI of late as the situation is worsening," a CSK source said on conditions of anonymity.

"Let's hope we can have the IPL later this year," he added.

CSK are three-time IPL champions, making them the second most successful team in the event's history after Mumbai Indians, who have won the tournament four times.

The BCCI is also very keen to stage the IPL and if it doesn't happen, the world's richest board would be in financial trouble like Cricket Australia.

"The board will take a revenue hit of Rs 4000 crore if it doesn't happen. The board will be in a big problem," BCCI treasurer Arun Dhumal said earlier this week.

With COVID-19 cases continuing to rise in India, the board and IPL team officials see little point in discussing when the event can be held.

"There has been no discussion with the BCCI ever since it postponed the IPL. There is no point in discussing also as things are unlikely to be okay anytime soon," the CSK source said.

"We expect the BCCI to take the best possible decision when the time comes," he added.

For the IPL to happen with foreign players, travel restrictions, which are currently in place, will have to be eased.

There is an option of conducting the IPL outside India and Sri Lanka Cricket has even offered to host the biggest T20 league in the world.

M S Dhoni was expected to make a much-awaited comeback with the IPL but that too has been postponed indefinitely.

Teammates like Suresh Raina and Piyush Chawla have already spoken about how eager Dhoni was to return.

According to them, Dhoni had the determination of a youngster before the league was suspended due to the lockdown imposed to contain the pandemic.

"Dhoni is his own man but I see him playing the IPL for at least two three years. When it comes to playing for India, only he knows best," the source added.

Last month, Rajasthan Royals executive chairman Ranjit Barthakur had said the franchise was open to a shortened IPL with only Indian players.

"Earlier we could not think of an Indians-only IPL but now there is enough quality to choose from. It is better to have an Indians-only IPL than not have it at all," he had told news agency.

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News Network
July 20,2020

The International Cricket Council (ICC) today confirmed the ICC Men’s T20 World Cup in Australia 2020 has been postponed due to the ongoing COVID-19 pandemic

At today’s meeting of the IBC Board (the commercial subsidiary of the ICC), windows for the next three ICC men’s events were also agreed to bring clarity to the calendar and give the sport the best possible opportunity over the next three years to recover from the disruption caused by COVID-19.

The windows for the Men’s events are:

1. ICC Men’s T20 World Cup 2021 will be held October – November 2021 with the final on 14 November 2021

2. ICC Men’s T20 World Cup 2022 will be held October – November 2022 with the final on 13 November 2022

3. ICC Men’s Cricket World Cup 2023 will be held in India October – November 2023 with the final on 26 November 2023

The IBC Board agreed to continue to monitor the rapidly changing situation and assess all the information available in order to make a considered decision on future hosts to ensure the sport is able to stage safe and successful global events in 2021 and 2022.

The IBC Board will also continue to evaluate the situation in relation to being able to stage the ICC Women’s Cricket World Cup 2021 in New Zealand in February next year. In the meantime, planning for this event continues as scheduled.

The Board will also continue to evaluate the situation in relation to being able to stage the ICC Women’s Cricket World Cup 2021.

ICC Chief Executive Manu Sawhney said: “We have undertaken a comprehensive and complex contingency planning exercise and through this process, our number one priority has been to protect the health and safety of everyone involved in the sport.

“The decision to postpone the ICC Men’s T20 World Cup was taken after careful consideration of all of the options available to us and gives us the best possible opportunity of delivering two safe and successful T20 World Cups for fans around the world.

“Our Members now have the clarity they need around event windows to enable them to reschedule lost bilateral and domestic cricket. Moving the Men’s Cricket World Cup to a later window is a critical element of this and gives us a better chance of maintaining the integrity of the qualification process. This additional time will be used to reschedule games that might be lost because of the pandemic ensuring qualification can be decided on the field of play.

“Throughout this process we have worked closely with our key stakeholders including governments, Members, broadcasters, partners and medical experts to enable us to reach a collective decision for the good of the game and our fans. I would like to thank everyone involved for their commitment to a safe return to cricket.”

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News Network
February 21,2020

New Delhi, Feb 21: Vinesh Phogat yet again fell to Japanese nemesis Mayu Muakida to go out of the gold medal race but Sakshi Malik will fight for the title after winning her semifinal bout at the Asian Wrestling Championship, here on Friday.

Vinesh had lost twice to Mukaida in 2019 – at World Championship and Asian Championships —and the trend continued as the gritty Indian yet again struggled to break the strong defence of the Japanese.

In a tough opening round, Vinesh tried single leg attacks a number of times but every time Mukaida blocked her move and eventually got the upper body lock to subdue the home favourite.

In her last two meetings, Vinesh had not scored a single point against the 2019 world silver medallist. She managed a takedown this time before eventually losing 2-6.

The hard-working Vinesh will now fight for bronze against Vietnam's Thi Ly Kieu but even a medal won't suffice to lift her mood as she and the fans have high expectations from her.

Rio Olympic bronze medallist Sakshi Malik, who has been struggling of late, lost her opening round 1-2 to Naomi Ruike from Japan but later overcame two weak opponents to eventually reach the final of the non-Olympic 65kg category.

She could hardly attack Naomi but outplayed Korea's Ohyoung Ha in the next round, winning by technical superiority.

In her semifinal against Uzbekistan's Nabira Esenbaeva, Sakshi led 5-0 but her rival pulled off consecutive two-point moves to make it 5-4.

Sakshi has been losing in closing stages of late but this time she managed to hold on to her narrow lead, surviving anxious last two seconds.

Also in medal contention are India's brightest youngsters Sonam Malik (62kg) and Anshu Malik (57kg).

Sonam, who had defeated Sakshi in the trials, showed good tactical mind in her resounding win against Korea's Hanbit Lee and also in the 2-5 defeat against world bronze medallist Yukako Kawai.

She pulled off a superb point-scoring move from a disadvantageous position and resisted the 2018 U-23 world champion Yukako in a good fashion.

She will now fight for bronze against Aisuluu Tynbekova.

Anshu Malik opened up her campaign against Kyrgyzstan's Nuraida Anarkulova, winning by technical superiority but was outplayed by reigning world champion from Japan Riskao Kawai.

She will have to beat Sevara Eshmuratova from Uzbekistan to grab a bronze.

In the non-olympic 72kg, Gursharanpreet Kaur is in bronze medal contention. She beat Uzbekistan's Svetlana Oknazarova but lost to Kazakhstan's Zhamila Bakberzenova.

She still made it to the semifinal in which she lost to Japan's Mei Shindo.

She is now up against Mongloia's Tsevegmed Enkhbayar.

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