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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April 30,2020

New Delhi, Apr 30: Indian skipper Virat Kohli on Thursday mourned the demise of veteran Bollywood actor Rishi Kapoor, called his death 'unreal and unbelievable' loss.

"This is unreal and unbelievable. Yesterday Irrfan Khan and today Rishi Kapoor ji. It's hard to accept this as a legend passes away today. My condolences to the family and may his soul rest in peace," Kohli tweeted.

Opening batsman Shikhar Dhawan also expressed his heartfelt condolences to the family and friends of the deceased.
"It's shocking to hear about the sudden demise of #RishiKapoor ji. My heartfelt condolences to his family and friends. May his soul rest in peace," Dhawan tweeted.

Earlier today, actor Amitabh Bachchan confirmed the news of the demise of the 67-year-old Rishi Kapoor. Rishi Kapoor was admitted to the Sir HN Reliance Foundation Hospital in Mumbai on Wednesday.

In September 2019, the veteran actor returned to Mumbai after staying in New York for almost a year for cancer treatment.

He was last seen in the 2019 film 'The Body' alongside Emraan Hashmi and Shobita Sobhita Dhulipala.

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January 22,2020

New Delhi, Jan 22: The pitches in New Zealand have become a lot more batting-friendly over the years, says iconic former batsman Sachin Tendulkar, insisting that India have the “ammunition” to trouble the sprightly hosts during the upcoming series.

Tendulkar, who has been on a record five New Zealand tours since 1990, feels that from seaming tracks during his early trips years, the tracks became high-scoring hard ones during his last tour back in 2009.

“Of late, the Tests in New Zealand have been high scoring and surfaces have changed,” Tendulkar told PTI during an exclusive interview.

India will play five T20 Internationals, three ODIs and two Tests during the tour starting with the shortest format on January 24.

From 2002, when India played ODIs and Tests on green tops, to 2009, when India won only their second Test series in 32 years, Tendulkar has seen it all in New Zealand.

“I remember when we played in 2009, the Hamilton pitch was different compared to other pitches. Other pitches got harder (Wellington and Napier) but not Hamilton. It remained soft.

“But Napier became hard with passage of time (where Gautam Gambhir scored an epic match-saving 12-hour hundred in 2009). So, from my first tour (in 1990 till 2009), I realised pitches got harder with passage of time,” Tendulkar said.

Tendulkar is confident that the Indian bowling attack, spearheaded by Jasprit Bumrah, has the ammunition to put New Zealand in trouble.

“We have a good bowling attack with quality fast bowlers as well as spinners. I believe we have the ammunition to compete in New Zealand.”

However, in Wellington, Tendulkar wants the team to be well-prepared to counter the breeze factor.

“Wellington, I have played and it makes a huge difference if you are bowling with the wind or against the wind. The batsman needs to be judicious in the choice of which end he wants to attack, it is very important,” he said.

Tendulkar said he would prefer spinners to bowl against the breeze.

“...the seamers bowling against the strong breeze need to be smart. So I would prefer that if there is strong breeze, let the spinner bowl from that end and from the opposite end, the fast bowler bowls with the breeze behind him,” he said.

The maestro is confident that Rohit Sharma's white ball experience will hold him in good stead in the Tests as well, an assignment that has been kept for the last leg of the trip, which begins with five T20 Internationals from January 24.

“The challenge would be to go out and open in different conditions. I think Rohit had opened in New Zealand in ODIs and has been there quite a few times, he knows the conditions well. Eventually, Test cricket is Test cricket,” he said.

“But all depends on surfaces that they provide. If they provide green tops, then it's a challenge.”

There is no Bhuvneshwar Kumar or Deepak Chahar in limited-overs series but Tendulkar is not ready to press the panic button.

“Injuries are part and parcel of the game when you play and push your body to the limits.

“When you play for your country you need to give your best and while you give your best, you can get injured. That's okay,” he concluded.

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January 10,2020

Srinagar, Jan 10: Real Kashmir FC made a strong comeback in the second half to play out a 1-1 draw against former champions Punjab FC in their home I-League match here on Friday.

The 'Snow Leopards' equalised in the 62nd minute through Gnohere Krizo in front of a partisan crowd of 8,500 spectators after Makan Chothe had given Punjab FC the lead in the 21st minute at the TRC ground.

After Thursday's draw, Punjab FC is placed third on the table with 10 points from seven games. Real Kashmir FC remained at eighth with six points from five matches. This was Real Kashmir's third home match on the trot.

The match was a story of two halves as the first belonged to the visitors who enjoyed a 62 per cent possession of the ball, whereas the second belonged to the home side.

Both the teams were looking to gain an early advantage and Punjab FC took the lead after 21 minutes.

Confusion inside the Real Kashmir box because of a long ball from Punjab opened up an opportunity for Chothe and he made no mistake as he smashed the ball at the back of the net.

As the fans cheered on, Real Kashmir created a flurry of chances, but none of the home side players could find the back of the net. Punjab was able to hold on to their slender lead heading into the tunnel.

The second half resumed with Real Kashmir pressing high up the field and pressurising Punjab.

In the 56th minute, Real Kashmir playmaker Kallum Higginbotham cut through two defenders on the left side of the box and the ball fell to Mason Robertson, whose shot was too weak to trouble the Punjab goalkeeper.

Soon after, it was Danish Farooq who tried a curler from a distance but his shot did not have enough bend to trouble the Punjab goalkeeper. The home team's effort finally paid off in the 62nd minute.

A miscalculated header by Danilo Augusto fell at the feet of Gnohere Krizo, who was one-on-one with the keeper. He made no mistake in striking the ball into the opponent's goal to score the equaliser.

Real Kashmir was in their groove now, and Kallum came in from the right with a beautiful low cross across the face of the goal but Mason could not get a touch as the chance went begging.

The duo of Kallum and Mason were proving difficult for Punjab to deal with. In the 82nd minute, a beautiful long ball by Kallum found the head of a towering Mason, but the effort went just over the crossbar.

Within a few moments, Punjab again had another nervous moment as Chesterpoul Lyngdoh's cross from the right side hit the arm of Thoiba Singh but the referee turned down an appeal for penalty.

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