Monthly Archives: April 2022

Sunday, March 2, 2008

The President of Palestine, Mahmoud Abbas has cut all diplomatic ties and relations with Israel including any and all communications.

Abbas made his decision after recent Israeli crackdown on Palestinian militants has left over 100 people dead and dozens injured. On Saturday March 1, 70 Palestinians were killed in clashes. At least two soldiers of the Israeli Defense Force were also killed.

Abbas says that he will continue his silence towards Israel until “all aggression” against Palestine is stopped.

“The negotiations are suspended, as are all contacts on all levels, because in light of the Israeli aggression such communication has no meaning. The Israeli government has decided to prosecute an unjust war and the open slaughter of our people. It bears sole responsibility for the hindering the peace process and all the effects and consequences of this decision,” said Nabil Abu Rudeina, a spokesman for Abbas in a statement to the media.

According to reports by Africasia quoting Agence France-Presse (AFP), Israel calls the move by Abbas a mistake.

“Suspending peace talks is a mistake and it gives the keys to the negotiations to Hamas,” said an Israeli official to AFP who was not named.

The United States among other nations have called for Israel to stop its strikes, but Prime Minister Ehud Olmert said that “nothing will prevent us from continuing operations to protect our citizens.”

Sunday, May 28, 2006

Stardust is a NASA space capsule that collected samples from comet 81P/Wild (also known as “Wild 2) in deep space and landed back on Earth on January 15, 2006. It was decided that a collaborative online review process would be used to “discover” the microscopically small samples the capsule collected. The project is called Stardust@home. Unlike distributed computing projects like SETI@home, Stardust@home relies entirely on human intelligence.

Andrew Westphal is the director of Stardust@home. Wikinews interviewed him for May’s Interview of the Month (IOTM) on May 18, 2006. As always, the interview was conducted on IRC, with multiple people asking questions.

Some may not know exactly what Stardust or Stardust@home is. Can you explain more about it for us?

Stardust is a NASA Discovery mission that was launched in 1999. It is really two missions in one. The primary science goal of the mission was to collect a sample from a known primitive solar-system body, a comet called Wild 2 (pronounced “Vilt-two” — the discoverer was German, I believe). This is the first [US]] “sample return” mission since Apollo, and the first ever from beyond the moon. This gives a little context. By “sample return” of course I mean a mission that brings back extraterrestrial material. I should have said above that this is the first “solid” sample return mission — Genesis brought back a sample from the Sun almost two years ago, but Stardust is also bringing back the first solid samples from the local interstellar medium — basically this is a sample of the Galaxy. This is absolutely unprecedented, and we’re obviously incredibly excited. I should mention parenthetically that there is a fantastic launch video — taken from the POV of the rocket on the JPL Stardust website — highly recommended — best I’ve ever seen — all the way from the launch pad, too. Basically interplanetary trajectory. Absolutely great.

Is the video available to the public?

Yes [see below]. OK, I digress. The first challenge that we have before can do any kind of analysis of these interstellar dust particles is simply to find them. This is a big challenge because they are very small (order of micron in size) and are somewhere (we don’t know where) on a HUGE collector— at least on the scale of the particle size — about a tenth of a square meter. So…

We’re right now using an automated microscope that we developed several years ago for nuclear astrophysics work to scan the collector in the Cosmic Dust Lab in Building 31 at Johnson Space Center. This is the ARES group that handles returned samples (Moon Rocks, Genesis chips, Meteorites, and Interplanetary Dust Particles collected by U2 in the stratosphere). The microscope collects stacks of digital images of the aerogel collectors in the array. These images are sent to us — we compress them and convert them into a format appropriate for Stardust@home.

Stardust@home is a highly distributed project using a “Virtual Microscope” that is written in html and javascript and runs on most browsers — no downloads are required. Using the Virtual Microscope volunteers can search over the collector for the tracks of the interstellar dust particles.

How many samples do you anticipate being found during the course of the project?

Great question. The short answer is that we don’t know. The long answer is a bit more complicated. Here’s what we know. The Galileo and Ulysses spacecraft carried dust detectors onboard that Eberhard Gruen and his colleagues used to first detect and them measure the flux of interstellar dust particles streaming into the solar system. (This is a kind of “wind” of interstellar dust, caused by the fact that our solar system is moving with respect to the local interstellar medium.) Markus Landgraf has estimated the number of interstellar dust particles that should have been captured by Stardust during two periods of the “cruise” phase of the interplanetary orbit in which the spacecraft was moving with this wind. He estimated that there should be around 45 particles, but this number is very uncertain — I wouldn’t be surprised if it is quite different from that. That was the long answer! One thing that I should say…is that like all research, the outcome of what we are doing is highly uncertain. There is a wonderful quote attributed to Einstein — “If we knew what we were doing, it wouldn’t be called “research”, would it?”

How big would the samples be?

We expect that the particles will be of order a micron in size. (A millionth of a meter.) When people are searching using the virtual microscope, they will be looking not for the particles, but for the tracks that the particles make, which are much larger — several microns in diameter. Just yesterday we switched over to a new site which has a demo of the VM (virtual microscope) I invite you to check it out. The tracks in the demo are from submicron carbonyl iron particles that were shot into aerogel using a particle accelerator modified to accelerate dust particles to very high speeds, to simulate the interstellar dust impacts that we’re looking for.

And that’s on the main Stardust@home website [see below]?

Yes.

How long will the project take to complete?

Partly the answer depends on what you mean by “the project”. The search will take several months. The bottleneck, we expect (but don’t really know yet) is in the scanning — we can only scan about one tile per day and there are 130 tiles in the collector…. These particles will be quite diverse, so we’re hoping that we’ll continue to have lots of volunteers collaborating with us on this after the initial discoveries. It may be that the 50th particle that we find will be the real Rosetta stone that turns out to be critical to our understanding of interstellar dust. So we really want to find them all! Enlarging the idea of the project a little, beyond the search, though is to actually analyze these particles. That’s the whole point, obviously!

And this is the huge advantage with this kind of a mission — a “sample return” mission.

Most missions rather do things quite differently… you have to build an instrument to make a measurement and that instrument design gets locked in several years before launch practically guaranteeing that it will be obsolete by the time you launch. Here exactly the opposite is true. Several of the instruments that are now being used to analyze the cometary dust did not exist when the mission was launched. Further, some instruments (e.g., synchrotrons) are the size of shopping malls — you don’t have a hope of flying these in space. So we can and will study these samples for many years. AND we have to preserve some of these dust particles for our grandchildren to analyze with their hyper-quark-gluon plasma microscopes (or whatever)!

When do you anticipate the project to start?

We’re really frustrated with the delays that we’ve been having. Some of it has to do with learning how to deal with the aerogel collectors, which are rougher and more fractured than we expected. The good news is that they are pretty clean — there is very little of the dust that you see on our training images — these were deliberately left out in the lab to collect dust so that we could give people experience with the worst case we could think of. In learning how to do the scanning of the actual flight aerogel, we uncovered a couple of bugs in our scanning software — which forced us to go back and rescan. Part of the other reason for the delay was that we had to learn how to handle the collector — it would cost $200M to replace it if something happened to it, so we had to develop procedures to deal with it, and add several new safety features to the Cosmic Dust Lab. This all took time. Finally, we’re distracted because we also have many responsibilities for the cometary analysis, which has a deadline of August 15 for finishing analysis. The IS project has no such deadline, so at times we had to delay the IS (interstellar, sorry) in order to focus on the cometary work. We are very grateful to everyone for their patience on this — I mean that very sincerely.

And rest assured that we’re just as frustrated!

I know there will be a “test” that participants will have to take before they can examine the “real thing”. What will that test consist of?

The test will look very similar to the training images that you can look at now. But.. there will of course be no annotation to tell you where the tracks are!

Why did NASA decide to take the route of distributed computing? Will they do this again?

I wouldn’t say that NASA decided to do this — the idea for Stardust@home originated here at U. C. Berkeley. Part of the idea of course came…

If I understand correctly it isn’t distributed computing, but distributed eyeballing?

…from the SETI@home people who are just down the hall from us. But as Brian just pointed out. this is not really distributed computing like SETI@home the computers are just platforms for the VM and it is human eyes and brains who are doing the real work which makes it fun (IMHO).

That said… There have been quite a few people who have expressed interested in developing automated algorithms for searching. Just because WE don’t know how to write such an algorithm doesn’t mean nobody does. We’re delighted at this and are happy to help make it happen

Isn’t there a catch 22 that the data you’re going to collect would be a prerequisite to automating the process?

That was the conclusion that we came to early on — that we would need some sort of training set to be able to train an algorithm. Of course you have to train people too, but we’re hoping (we’ll see!) that people are more flexible in recognizing things that they’ve never seen before and pointing them out. Our experience is that people who have never seen a track in aerogel can learn to recognize them very quickly, even against a big background of cracks, dust and other sources of confusion… Coming back to the original question — although NASA didn’t originate the idea, they are very generously supporting this project. It wouldn’t have happened without NASA’s financial support (and of course access to the Stardust collector). Did that answer the question?

Will a project like this be done again?

I don’t know… There are only a few projects for which this approach makes sense… In fact, I frankly haven’t run across another at least in Space Science. But I am totally open to the idea of it. I am not in favor of just doing it as “make-work” — that is just artificially taking this approach when another approach would make more sense.

How did the idea come up to do this kind of project?

Really desperation. When we first thought about this we assumed that we would use some sort of automated image recognition technique. We asked some experts around here in CS and the conclusion was that the problem was somewhere between trivial and impossible, and we wouldn’t know until we had some real examples to work with. So we talked with Dan Wertheimer and Dave Anderson (literally down the hall from us) about the idea of a distributed project, and they were quite encouraging. Dave proposed the VM machinery, and Josh Von Korff, a physics grad student, implemented it. (Beautifully, I think. I take no credit!)

I got to meet one of the stardust directors in March during the Texas Aerospace Scholars program at JSC. She talked about searching for meteors in Antarctica, one that were unblemished by Earth conditions. Is that our best chance of finding new information on comets and asteroids? Or will more Stardust programs be our best solution?

That’s a really good question. Much will depend on what we learn during this official “Preliminary Examination” period for the cometary analysis. Aerogel capture is pretty darn good, but it’s not perfect and things are altered during capture in ways that we’re still understanding. I think that much also depends on what question you’re asking. For example, some of the most important science is done by measuring the relative abundances of isotopes in samples, and these are not affected (at least not much) by capture into aerogel.

Also, she talked about how some of the agencies that they gave samples to had lost or destroyed 2-3 samples while trying to analyze them. That one, in fact, had been statically charged, and stuck to the side of the microscope lens and they spent over an hour looking for it. Is that really our biggest danger? Giving out samples as a show of good faith, and not letting NASA example all samples collected?

These will be the first measurements, probably, that we’ll make on the interstellar dust There is always a risk of loss. Fortunately for the cometary samples there is quite a lot there, so it’s not a disaster. NASA has some analytical capabilities, particularly at JSC, but the vast majority of the analytical capability in the community is not at NASA but is at universities, government labs and other institutions all over the world. I should also point out that practically every analytical technique is destructive at some level. (There are a few exceptions, but not many.) The problem with meteorites is that except in a very few cases, we don’t know where they specifically came from. So having a sample that we know for sure is from the comet is golden!

I am currently working on my Bachelor’s in computer science, with a minor in astronomy. Do you see successes of programs like Stardust to open up more private space exploration positions for people such as myself. Even though I’m not in the typical “space” fields of education?

Can you elaborate on your question a little — I’m not sure that I understand…

Well, while at JSC I learned that they mostly want Engineers, and a few science grads, and I worry that my computer science degree with not be very valuable, as the NASA rep told me only 1% of the applicants for their work study program are CS majors. I’m just curious as to your thoughts on if CS majors will be more in demand now that projects like Stardust and the Mars missions have been great successes? Have you seen a trend towards more private businesses moving in that direction, especially with President Bush’s statement of Man on the Moon in 2015?

That’s a good question. I am personally not very optimistic about the direction that NASA is going. Despite recent successes, including but not limited to Stardust, science at NASA is being decimated.

I made a joke with some people at the TAS event that one day SpaceShipOne will be sent up to save stranded ISS astronauts. It makes me wonder what kind of private redundancy the US government is taking for future missions.

I guess one thing to be a little cautious about is that despite SpaceShipOne’s success, we haven’t had an orbital project that has been successful in that style of private enterprise It would be nice to see that happen. I know that there’s a lot of interest…!

Now I know the answer to this question… but a lot do not… When samples are found, How will they be analyzed? Who gets the credit for finding the samples?

The first person who identifies an interstellar dust particle will be acknowledged on the website (and probably will be much in demand for interviews from the media!), will have the privilege of naming the particle, and will be a co-author on any papers that WE (at UCB) publish on the analysis of the particle. Also, although we are precluded from paying for travel expenses, we will invite those who discover particles AND the top performers to our lab for a hands-on tour.

We have some fun things, including micromachines.

How many people/participants do you expect to have?

About 113,000 have preregistered on our website. Frankly, I don’t have a clue how many will actually volunteer and do a substantial amount of searching. We’ve never done this before, after all!

One last thing I want to say … well, two. First, we are going to special efforts not to do any searching ourselves before we go “live”. It would not be fair to all the volunteers for us to get a jumpstart on the search. All we are doing is looking at a few random views to make sure that the focus and illumination are good. (And we haven’t seen anything — no surprise at all!) Also, the attitude for this should be “Have Fun”. If you’re not having fun doing it, stop and do something else! A good maxim for life in general!

Wednesday, February 3, 2010

A compilation of brief news reports for Wednesday, February 3, 2010.

The Nigerian man accused of trying to blow up a Detroit-bound jetliner on Christmas day with hidden explosives is cooperating with investigators and providing fresh intelligence after the U.S. enlisted the help of his family, an administration official said. His family persuaded him to cooperate.

Umar Farouk Abdulmutallab has been providing information to Federal Bureau of Investigation agents questioning him, the official told reporters on the condition of anonymity.

The official declined to provide details on what kind of information Abdulmutallab was providing.

Related news

• “Failed bomb aboard Delta flight” — Wikinews, December 26, 2009

Sources

• Evan Perez. “Abdulmutallab Resumes Talking to Federal Agents” — The Wall Street Journal, February 2, 2010
• “Bomb plot accused ‘co-operating'” — UKPA, February 2, 2010

One person died and 41 were injured, including three nurses who are critically injured, in a major fire at Park Healthcare Hospital in Somajiguda, a suburb of the Indian city Hyderabad, on Tuesday morning.

The fire engulfed a major portion of the five-storey hospital’s first floor, along with some medical equipment and furniture on the other floors.

City police commissioner A K Khan said that a criminal case had been registered against the hospital management. “It is also being determined whether safety standards were followed by the hospital,” he said.

Sources

• “Major fire at city hospital; one patient dead” — The Hindu, February 2, 2010
• “Major fire at Hyderabad hospital; one patient dead” — PTI, February 2, 2010

Chinese authorities say they are preparing to launch a crackdown on melamine-laced milk after the scandal over tainted products, which made hundreds of thousands of children ill two years ago and damaged China’s brand reputation overseas, resurfaced.

China has dispatched inspectors to sixteen provinces to urge local governments to thoroughly investigate cases concerning food safety.

The decision comes after milk products tainted with the industrial chemical melamine were removed from sale in Shanghai and the provinces of Shaanxi, Shandong, Liaoning and Hebei, the state-run Xinhua News Agency said.

Related news

• “Contaminated baby’s milk induces wave of child illness in China” — Wikinews, September 22, 2008

Sources

• Edward Wong. “China Begins Emergency Check of Dairy Products” — The New York Times, February 2, 2010
• Cara Anna. “Beijing begins emergency sweep for tainted milk products” — The Boston Globe, February 3, 2010

At least twenty-six people have been killed in Karachi, Pakistan after four days of ethnic killings, according to police officials. The officials said that nine people were killed on Monday in the city’s Orangi western neighbourhood, which has a majority ethnic Pashtun community.

The Sindh government has awarded special powers to the Pakistan Rangers under Section 5 of the Anti-Terrorism Act 1997 and imposed Section 144 in the limits of 26 police stations for a month.

At least forty people were killed as ethnic clashes erupted across the city in early January.Home minister of Sindh province, Dr Zulfiqar Mirza has called upon the Army to restore peace and order.

Sources

• Salis bin Perwaiz. “Rangers given control of 26 police stations” — The News International, February 3, 2010
• “Deadly ethnic violence hits Karachi” — Al Jazeera, February 2, 2010
• Zamir Sheikh and Nisar Mehdi. “Army asked to take over Karachi” — The Nation, February 3, 2010

Tuesday, March 29, 2005A team of Australian surgeons yesterday reattached both hands and one foot to 10-year-old Perth boy, Terry Vo, after a brick wall which collapsed during a game of basketball fell on him, severing the limbs. The wall gave way while Terry performed a slam-dunk, during a game at a friend’s birthday party.

The boy was today awake and smiling, still in some pain but in good spirits and expected to make a full recovery, according to plastic surgeon, Mr Robert Love.

“What we have is parts that are very much alive so the reattached limbs are certainly pink, well perfused and are indeed moving,” Mr Love told reporters today.

“The fact that he is moving his fingers, and of course when he wakes up he will move both fingers and toes, is not a surprise,” Mr Love had said yesterday.

“The question is more the sensory return that he will get in the hand itself and the fine movements he will have in the fingers and the toes, and that will come with time, hopefully. We will assess that over the next 18 months to two years.

“I’m sure that he’ll enjoy a game of basketball in the future.”

The weight and force of the collapse, and the sharp brick edges, resulted in the three limbs being cut through about 7cm above the wrists and ankle.

Terry’s father Tan said of his only child, the injuries were terrible, “I was scared to look at him, a horrible thing.”

The hands and foot were placed in an ice-filled Esky and rushed to hospital with the boy, where three teams of medical experts were assembled, and he was given a blood transfusion after experiencing massive blood loss. Eight hours of complex micro-surgery on Saturday night were followed by a further two hours of skin grafts yesterday.

“What he will lose because it was such a large zone of traumatised skin and muscle and so on, he will lose some of the skin so he’ll certainly require lots of further surgery regardless of whether the skin survives,” said Mr Love said today.

The boy was kept unconscious under anaesthetic between the two procedures. In an interview yesterday, Mr Love explained why:

“He could have actually been woken up the next day. Because we were intending to take him back to theatre for a second look, to look at the traumatised skin flaps, to close more of his wounds and to do split skin grafting, it was felt the best thing to do would be to keep him stable and to keep him anaesthetised.”

Professor Wayne Morrison, director of the respected Bernard O’Brien Institute of Microsurgery and head of plastic and hand surgery at Melbourne’s St Vincent’s Hospital, said he believed the operation to be a world first.

Sunday, April 25, 2010

At least ten people are dead after a large, destructive tornado tore through Yazoo City, Mississippi yesterday. The tornado has been rated an EF4 on the Enhanced Fujita Scale, and is estimated to have had at most 170 mph winds.

Five of the deaths were in Choctaw County, four in Yazoo County, and one in Holmes County. 21 people have been hospitalized as a result of the storm, and others have been trapped in cars and houses. Multiple injuries resulted from cars being blown off of Interstate 55 during the storm.

The tornado moved along a path 97 miles long and 1.75 miles wide at its widest point. Among damaged or destroyed buildings included at least twenty houses, a church, and several businesses. According to Yazoo City mayor McArthur Straughter, the storm ripped the roofs off of every building in the area. Fallen trees and debris are hindering access to some parts of Yazoo City and Yazoo County. Before ravaging the city, the tornado damaged a chemical plant in Louisiana, causing a nitrogen leak and several injuries.

The Salvation Army is aiding relief efforts by providing hot meals, coffee, cold drinks, and spiritual counseling to tornado victims in Yazoo and Warren Counties.

The tornado occurred on the third, and most active, day of a severe weather outbreak that had previously affected areas of Colorado, Kansas, Oklahoma, Texas, Arkansas, and Louisiana, the latter two of which were also effected during Saturday’s outbreak. The Storm Prediction Center has received 104 reports of tornadoes so far during this outbreak.

Monday, August 22, 2005

The Central Applications Office in Ireland has released the first round of offers for places on third level courses to over 60,000 Irish Leaving Certificate students (graduating secondary school students).

The offers are given out based on a highly competitive points system whereby students receive from

• 100 points for an A1 to 45 points for a D3 at higher level.
• 60 points for an A1 to 5 points for a D3 on lower level.

Points from a student’s best six subjects are added up to make his or her total points. This year 145 students achieved the maximum 600 points. Students achieveing this are generally regarded as the top students academically in the country.

Points required for courses in medicine and nursing have risen again leaving many candidates disappointed. Due to the huge popularity of medicine and the low supply of courses, points for entry into medicine are in the region of 580 points. Points for arts, engineering and commerce have fallen marginally.

While the points system is often attacked for placing too much pressure on students, it has avoided the problem of grade inflation that has occurred in the UK and USA. The Leaving Certificate exam has remained largely unchanged since its inception in 1924. It is often joked that the same questions reappear on the papers every 30 or 40 years.

Friday, January 25, 2008

Tom Cruise: An Unauthorized Biography, a biography of actor Tom Cruise written by journalist Andrew Morton, has hit the number one spot on Amazon.com‘s Top Sellers list and The New York Times Best Sellers list.

Morton’s book was published January 15, and hit number one on Amazon.com’s Top Sellers list on January 18. Yesterday, the book hit the number one spot on The New York Times Best Sellers list. The book is not for sale in Britain or Ireland, and the New York Post has reported that British tourists to the United States are buying copies of the book to bring back home.

Morton makes some controversial assertions in the book, including that Cruise is second in command at the Church of Scientology, and that Scientology was the cause of Cruise and Nicole Kidman‘s separation.

Cruise’s attorney, Bertram Fields released a statement which said that the book was “absolutely loaded with false statements.” Cruise has threatened a USD$100 million lawsuit against Morton and the book’s publisher, St. Martin’s Press. The Church of Scientology also responded to Morton’s claims in the book. In a 15-page statement, the Church called the book “bigoted” and a “defamatory assault,” and said that Cruise “holds no official or unofficial position in the Church hierarchy.”

Morton was interviewed by the Associated Press, and responded to some of the statements made by the Church of Scientology. When asked if he had attempted to interview Cruise for the book, Morton said “I asked Tom for an interview and he declined.” In response to a statement released by Cruise’s publicists that he had not interviewed “one person who has known or worked with Tom” in the past twenty-five years, Morton responded “I interviewed everyone from scriptwriters to producers to actors to actresses to teachers to girlfriends to pupils to Scientologists to people who have audited him.” When questioned about his assertion that Cruise is “second in command” of the Church of Scientology, Morton stated “Scientology would be a shadow of what it is today if it had not been for the involvement of Tom Cruise.”

Janet Maslin of The New York Times wrote that parts of the book “push the limits of responsible reporting.” A review in the Chicago Tribune was also critical, and Teresa Budasi wrote “If you read Andrew Morton’s unauthorized biography of Tom Cruise with a fan’s curiosity in one hand and a thinking person’s skepticism in the other, you’ll likely end up in the same place you were before you read it: not all that interested.” In his review of the book, Dave Shiflett of The Wall Street Journal commented on the litigious nature of the Church of Scientology, writing “Mr. Morton, apparently unfazed by the reputation of the group’s notoriously hair-triggered legal department, leaves few stones unhurled.”

Shortly before the book’s publication, a video produced by the Church of Scientology featuring Tom Cruise promoting his beliefs appeared on the Internet. After the Church of Scientology sent a legal complaint to the online video-sharing website YouTube, the video was taken down from that site, but is available on Gawker.com. A group of Internet users calling themselves “Anonymous” subsequently announced a “War on Scientology” including denial-of-service attacks against the Church of Scientology’s main websites. Andreas Heldal-Lund, founder of the Scientology-critical site and Norway-based non-profit organization Operation Clambake released a statement on Tuesday critical of the actions of the “Anonymous” group, saying that the Church of Scientology deserves the right to freedom of speech.

Actor Jerry O’Connell, who had previously acted alongside Cruise in the 1996 film Jerry Maguire, produced a parody of the Cruise video which was released on Wednesday. Other Hollywood acquaintances of Cruise, including comedians Adam Sandler and Ben Stiller, released statements defending Cruise and criticizing those who have mocked him for his beliefs. Sandler stated “To see anyone’s private life invaded and mocked like this is sickening,” and Stiller commented “People lose sight of the fact that Tom Cruise is actually a person. I feel for him.”

On Wednesday the Associated Press reported that Cruise will be a presenter at the Screen Actors Guild Awards ceremony on Sunday.