engine (2)

101104-qantas-jetliner-hmed-1215a.grid-6x2.jpg A Qantas Airways jet was forced to make an emergency landing after an engine appeared to explode Thursday — showering debris onto houses and a shopping mall below — shortly after take-off from Singapore.

Qantas said the Airbus A380 — which had stopped off en route from London, U.K., to Sydney, Australia — suffered a "significant engine failure" and grounded its fleet of six A380s.

The carrier said there had not been any explosion and landed safely with no injuries. Australian officials said no one on board was injured.

However, passengers among the 459 people on board variously reported hearing a "massive bang" or a "loud boom," with one describing the incident as "the scariest thing I had seen." The giant jet was forced to return to Singapore to make an emergency landing.

Witnesses on the western Indonesian island of Batam, near Singapore, reported hearing a large blast and seeing pieces of debris — including panels painted white and red — falling onto houses and a nearby shopping mall...

Pictures of metal, some the size of a door, were shown on Indonesia's MetroTV broadcaster, with people milling around.

"I heard a big explosion at around 9:15 a.m. and saw a commercial passenger plane flying low in the distance with smoke on one of its wings," Rusdi, a local resident, told MetroTV. "The debris started falling on my house."


'Like a shotgun'
The A380 has four engines and passengers said while the incident was frightening, the plane coped remarkably well...

"I just heard this massive bang, like a shotgun going off," Tyler Wooster told Australia's Network Nine television. "Part of the skin had peeled off and you could see the foam underneath, pieces of broken wires sticking out."

"My whole body just went to jelly and I didn't know what was going to happen as we were going down, if we were going to be OK," he added.

"I was sitting over the wing, where the No. 2 engine is. I was looking out of the window on the tarmac as we took off," Ulf Waschbusch, another passenger, told Reuters.

"Five minutes after take-off there was a loud boom, small pieces flying around (outside), it was the scariest thing I had seen. The plane was surprisingly stable all through. There was no panic," he said.

Christopher Lee told Australia's ABC radio the passengers heard a bang, and reported rattling in the cabin.

"Some of the passengers then alerted cabin staff that there was an explosion, there was smoke ... We circled in a holding pattern above Singapore for about an hour," he said. Passengers were kept informed at all times, he said.

Rosemary Hegardy, 60, of Sydney, told The Associated Press that she heard two bangs and saw yellow flames from her window.

"There was flames — yellow flames came out, and debris came off. ... You could see black things shooting through the smoke, like bits of debris," she said.

Investigation pending
The plane circled Singapore to burn fuel before making an emergency landing. Passengers evacuated andwere in Singapore's Changi airport. A Reuters reporter said the plane was surrounded on the ground by emergency vehicles, but there was no sign of smoke or fire.

Thursday's incident was one of most serious for the A380, the world's biggest passenger jet, in its three years of commercial flight.

Qantas said it was grounding its A380 fleet pending a full investigation.


A Qantas statement said the double-decker plane experienced an "engine issue" soon after taking off from Singapore for Sydney. It made a safe emergency landing in Singapore at 11:45 a.m. local time with 433 passengers and 26 crew on board, the statement said.

Qantas Chief Executive Alan Joyce told a news conference in Sydney that the suspension would remain in place until Qantas was satisfied that it was safe for its A380s to fly.

"We will suspend those A380 services until we are completely confident that Qantas safety requirements have been met," Joyce said.

"The A380 is a fantastic aircraft. This issue of an engine failure is one we have not seen before. We are obviously taking this very seriously, because it was a significant engine failure," he added.

Separately, Singapore's Changi airport said in a statement that flight QF 32 left for Sydney at 9:56 a.m., and "for technical reasons the aircraft turned back to Changi," landing safely one hour and 50 minutes later.

Qantas spokeswoman Emma Kearns in Sydney, Australia, said there were no reports of injuries or an explosion on board.

Did volcanic ash affect engine?
When asked if the engine trouble was related to ash hurled from the Mount Merapi volcano, which has been erupting since last week, Kearns said she had no further details.

The series of powerful eruptions, which has spewed massive clouds of gray ash up to 310 miles west of
Read more…

British search engine 'could rival Google'

A British physicist has revealed his plan to launch a new internet search engine so powerful that one expert has suggested it "could be as important as Google". London-born scientist Stephen Wolfram says that his company, Wolfram Research, is preparing to unveil the system in two months' time. Known as Wolfram Alpha, the site is an attempt to address some of the deficiencies of current web search by understanding people's questions and answering them directly. "Fifty years ago, when computers were young, people assumed that they'd quickly be able to handle all these kinds of things … and that one would be able to ask a computer any factual question and have it compute the answer," he wrote on the Wolfram Research website. "But it didn't work out that way … I'd always thought, though, that eventually it should be possible. And a few years ago, I realised that I was finally in a position to try and do it." According to its creator, the system understands questions that users input and then calculates the answers based on its extensive mathematical and scientific engine. Natural language processing – the ability to determine – has long been a holy grail for computer scientists, who believe for interacting with machines in an instinctive way. And that, says Wolfram, is part of the code that Alpha has cracked. "The way humans normally communicate is through natural language – and when one's dealing with the whole spectrum of knowledge, I think that's the only realistic option for communicating with computers too," he wrote. "Of course, getting computers to deal with natural language has turned out to be incredibly difficult. And, for example, we're still very far away from having computers systematically understand large volumes of natural language text on the web." Other search engines, such as Google, compare search terms against billions of documents stored on its servers, before pointing to the pages on which the correct answer is probably kept. Although this method has proved phenomenally successful, many computer scientists have continued trying to create a system that can understand human language. One of the most recent to claim a breakthrough was Powerset, which raised $12.5m (£8.9m) in funding and was under development for several years – but only released a limited search engine for Wikipedia before being bought by Microsoft for $100m last year. According to Nova Spivack, the founder of another intelligent web service, Twine, Alpha is far more impressive than what has gone before. "Wolfram Alpha is like plugging into a vast electronic brain," he wrote. "It provides extremely impressive and thorough questions asked in many different ways, and it computes answers – it doesn't merely look them up in a big database." The plan is already gaining media attention, but the 49-year-old is used to getting noticed for his exploits. After studying at Eton and Oxford, Wolfram went on to receive his PhD in theoretical physics from the California Institute of Technology at the age of 20 . As a result he was awarded a Macarthur genius grant in 1981, and later generated a mixture of applause and opprobrium with his famous book, A New Kind of Science. In it, he suggested that simple algorithms, rather than complex rules and structures, could be at the root of all science. Reaction to the idea – which Wolfram said could boil down to a computer program consisting of just "three or four lines of code" – was mixed. Some critics felt that Wolfram unfairly refused to submit his theories to peer review in the decade that he worked on the book, while others claimed he courted publicity by building up the image of a reclusive genius. Whatever the outcome of Wolfram's audacious claims, however, his track record is strong. One of his previous creations, the computer program Mathematica, is now used by many scientists to help them with their work.
Read more…

Blog Topics by Tags

  • in (506)
  • to (479)
  • of (339)
  • ! (213)
  • as (166)
  • is (157)
  • a (156)

Monthly Archives