Author: Admin

Wednesday, October 29, 2008

The Mars Reconnaissance Orbiter has found evidence of hydrated silica or opal, a form of mineral, over large areas in the Martian surface, including in the large martian canyon called Valles Marineris. The discovery was made by the Compact Reconnaissance Imaging Spectrometer (CRISM) instrument on the orbiter. The findings are published by Ralph Milliken of Jet Propulsion Laboratory and other scientists in the November issue of the journal Geology.

Opaline minerals were first found recently on Mars by Spirit rover in the Gusev crater. The present find points to more widespread occurrence of the minerals in comparatively younger strata of Mars. The find indicates that liquid water might have been present on the surface of Mars for a longer time than previously thought. The previous view was that liquid water disappeared from the Martian surface three billion years ago. Now it is estimated that water could have been present as late as two billion years ago.

The presence of opal not only indicates water, but also that it was there long enough to alter some of the rocks. CRISM, which detected the mineral measures visible and infrared reflection spectra in 544 channels and has 20 times better resolution than previously deployed instruments.

Hydrated minerals such as opal that indicate presence of water is yet another evidence of presence of liquid water on Mars. Opal found on Earth’s surface usually contain 3 – 10% water, but can be as high as 20%. Other water-bearing minerals found earlier are phyllosilicates and hydrated sulfates. Presence of liquid water is also suggested by suspected water-sculpted land forms on Mars, such as gullies and river channels. Currently water is present only as ice at both polar caps of Mars.

A number of outcrops of opaline minerals are found as thin layers over large distances, rimming the Valles Marineris canyon. It is expected that Martian explorations for past or present life will have to focus on similar younger terrains with hydrated minerals.

“This is an exciting discovery because it extends the time range for liquid water on Mars, and the places where it might have supported life,” said Scott Murchie, from Johns Hopkins University Applied Physics Laboratory in Maryland, one of the co-authors.

Tuesday, December 1, 2009

A four-year-old boy has been killed by a dog in the city of Liverpool in Merseyside, England. The child has been identified as John Paul Massey. The animal belonged to his uncle. The boy’s 63-year-old grandmother Helen Foulkes tried to protect the boy but ended up getting bitten by the dog in the process. She had to receive hospital treatment for the injury.

The dog itself was shot dead in the front garden of the house where the attack had taken place. The police had said that they did not take further action after receiving a report about dog breeding earlier this year.

Chief Superintendent Steve Ashley from the police force said about the incident: “In February this year a housing officer rang Merseyside Police to say they had received complaints of dog breeding at the address. At that time the police said it wasn’t a police matter and no action was taken by Merseyside Police.

That is contrary to our policies and an investigation is now launched into exactly what happened in February.”

Monday, October 11, 2010

Wikinews interviewed author Amy Scobee about her book Scientology – Abuse at the Top, and asked her about her experiences working as an executive within the organization. Scobee joined the organization at age 14, and worked at Scientology’s international management headquarters for several years before leaving in 2005. She served as a Scientology executive in multiple high-ranking positions, working out of the international headquarters of Scientology known as “Gold Base”, located in Gilman Hot Springs near Hemet, California.

Tuesday, December 8, 2009

State media reported earlier today that a stampede in a school in China has killed at least eight people and injured an additional 26.

The accident occurred at 21:10 local time at the Yucai Middle School, a privately-run institution in city of Xiangxiang, located in the Hunan Province. Reports say that several students were leaving their studies when one fell down a staircase, causing others to lose their balance and tumble down as well.

Those hurt in the incident were treated at three hospitals in the town, and eight other students were being observed by medical personnel despite appearing not to have been hurt.

Chinese officials are investigating the incident and have been questioning the city educational bureau and local school authorities, according to the Xinhua news agency.

Friday, March 9, 2007

Imagine coming back from a camping trip in the desert. Then a few months later you notice in your photos from the trip that you camped inside a giant impact crater so big that no one documented it before. Could it happen?

During several trips to the Black Rock Desert, mostly while supporting the Stratofox Aerospace Tracking Team for suborbital space rocket launch efforts, Ian Kluft KO6YQ noticed some oddities in rock formations. He had a little experience with volcanoes, and some rocks in the area looked unusual. There seemed to be some lava here and there – but where was the volcano? He observed that even a large caldera should have mostly volcanic rocks. He then noticed some curved geographic structures in satellite imagery which made him curious if it might be an impact crater.

A TV documentary about meteor impacts mentioned some characteristics of impact craters. He went to the Internet to learn more. He noticed some of his own pictures of the area had cone shaped structures which might be “shatter cones” due to an impact shock wave that passed through the rocks. Discussion with others produced suggestions and volunteers who joined the effort. More circular features in satellite photographs were found. Igneous dikes through white layers of rock had been described and were visible in many photos.

The possible impact crater is 30 miles (48 km) wide east-to-west and 40 miles (64 km) north-to-south centered around 40.984045 N, 118.916016 W. That is in northwestern Nevada halfway between Reno and the Oregon border. The apparent ancient geological structure is so old that much of it is eroded away. The forces that eroded the Black Rock Desert itself, whether glacier or stream, have apparently cut through the crater rims and floor to do it.

Following an expedition to the area in late January, more possible shatter cones were observed in one of the rock samples collected. These are only formed by the shock wave of an impact event or nuclear explosion. The nearest nuclear test was underground at Sand Springs Range in central Nevada. Atmospheric tests at the Nevada Test Site were at the southern, and opposite, end of the state. So that points toward an impact if confirmed. But professional geologists will want to have the final word on confirming them.

In addition to shatter cones, rock samples were thought to contain shocked quartz because the criss-cross fractures looked like examples in online documents. But this group of volunteers doesn’t have equipment for proper photography of shocked quartz. If found, that would be another way to prove the impact origin of the rocks.

Columnar jointed columns hundreds of feet tall appear on some bluffs in locations that appeared consistent with part of a slowly cooling crater floor. But that alone only helps as part of a bigger picture, because volcanoes can have lava cool in columnar joints as well.

They also found local geological studies which described oddities which could be explained by an impact event. Layers of rocks in the mining district called Sulphur left geologists with a mystery about the cause of chemical alterations since 1980. The group compared it with information in online geological texts like “Traces of Catastrophe” by Dr Bevan M French of the Smithsonian Institution. Layers of impact ejecta seemed to explain the rock layers better than the previous theory about acid uniformly cooking the rocks across the region, and only in one layer of rocks. A separate 1980 study 40 miles away identified an immense air-fall tuff layer in the Soldier Meadows area as having been deposited in a single unit, yet couldn’t locate the volcano which produced this enormous volume. Fault diagrams published online by a mining operation at Sulphur on the edge of the circular structure from the satellite photo also look like curved terraced faults in the wall of a crater.

The mining geologists who wrote papers from 1980 to 2002 had not mentioned the possibility of a crater. But they were each gathering single puzzling pieces of information. A larger image seemed to be forming when putting the pieces together. The group hopes the information will be helpful to geologists who do further work in the region.

The theory hasn’t been put to any test by professionals yet. Some responses point out that the elliptical region reported as the possible impact crater could also be the volcanic caldera that the 1980 study was looking for. If so, such a large volcanic caldera would still be a significant discovery for the region.

This will remain officially a mystery for a while until the professional geologists get to study it. There is a lot of information available online for those who are interested.

Sunday, November 23, 2008

A Pembroke Pines, Florida teenager killed himself Wednesday, November 19, while broadcasting on the live video site Justin.tv. After making suicide threats and being encouraged by Justin.tv viewers and Bodybuilding.com forum members, Abraham K. Biggs, 19, committed suicide by taking an overdose of opiates and benzodiazepine, which had been prescribed for his bipolar disorder.

Biggs first began blogging about his planned suicide 12 hours before the actual event. He died after taking pills and lying on the bed in front of the webcam. After the broadcast, viewers who apparently thought it was a hoax posted messages such as “OMG”, “LOL”, and “hahahah”.

Hours later, after being alerted by viewers who had noticed that Biggs had stopped breathing, law enforcement and paramedics arrived, discovered his body, and covered the camera. The Broward County Medical Examiner’s Office has reportedly confirmed Biggs’ death.

According to Montana Miller of the Bowling Green State University, the circumstances of this case were not shocking: “If it’s not recorded or documented, then it doesn’t even seem worthwhile. For today’s generation it might seem, ‘What’s the point of doing it if everyone isn’t going to see it?'”

Biggs’ sister Rosalind was angry that neither the website nor its viewers reacted soon enough to save him. “They got hits, they got viewers, nothing happened for hours,” she said. She described him as “very happy” and “friendly and outgoing.” “On a normal day, you couldn’t really tell that he got as low as he did.” However, he did have relationship problems with his girlfriend, according to a friend.

Mental health professionals have warned about the possibility that other mentally troubled people would copy his actions. According to Dr. David Shaffer of Columbia University, “Any video showing it as heroic or romantic or glamorous could reduce the anxiety people might feel about suicide. It becomes a respectable behavior and lowers the threshold of suicide.” He and other psychiatrists recommend that potentially suicidal teens talk to others and “tell what’s going on.”

Friday, October 5, 2007

You may not know Joseph Merlino, but he knows about you and what makes you function. He knows what turns you on and he knows whether it is a problem for you. Merlino, who is the psychiatry adviser to the New York Daily News, is one of the more accomplished psychiatrists in his field and he is the Senior Editor of the forthcoming book, Freud at 150: 21st Century Essays on a Man of Genius. The battle over interpreting Freud’s legacy still rages, a testament to the father of psychoanalysis and his continuing impact today.

On the eve of the book’s publication, Wikinews reporter David Shankbone went to the Upper East Side of Manhattan to discuss the past and future of Freud and psychoanalysis with Dr. Merlino, one of the preeminent modern psychoanalysts. Shankbone took the opportunity to ask about what insanity is, discuss aberrant urges, reflect upon sadomasochism (“I’m not considered an expert in that field,” laughed Dr. Merlino), and the hegemony of heterosexuality.

Dr. Merlino posits that absent structural, biochemical or physiological defects, insanity and pathology are relative and in flux with the changing culture of which you are a part. So it is possible to be sane and insane all in one day if, for instance, you are gay and fly from the United Kingdom to Saudi Arabia.