marathon06.org

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.

Monday, July 9, 2007

Dutch adventurer Ralph Tuijn has reached the halfway point of his attempt to be the first person to row across the Pacific Ocean unaided.

The 16,000 kilometre journey from the coast of Peru to the seaside city of Brisbane, Australia, the widest section of the Pacific, has never been crossed absolutely unaided by a rower, and Tuijn says just nine people have rowed it even with assistance.

Tuijn reached the central point of his crossing, an insignificant point of water in the ocean, 111 days after setting off from Peru in March. He has been making good progress, and has since cut his estimated time of arrival in Brisbane by a month.

The Dutchman, who now expects to reach his destination on October 20, has kept in touch with those tracking his movements through daily internet postings from his laptop computer, including his wife Winnie. His boat, the Zeeman Challenger, is a seven-metre custom plywood vessel.

Tuijn has overcome a variety of obstacles to reach the halfway point. He is suffering from the constant attention of sharks, who often bump his boat and disrupt his attempts at sleep. One particular shark, dubbed ‘Gomulka’ by Tuijn, has been trailing the adventurer’s boat for extended periods.

He has also accidentally burnt himself when he spilled hot water on his foot whilst trying to make coffee, apparently also from a shark ‘bump’. He is also forced to manually pump water for cooking and drinking after his automatic water pump broke down not long into his journey.

His vessel has no motors or sails, but relies on his physical rowing power to move. The boat does have a solar power system to provide energy for his laptop, a telephone and a global positioning system.

Tujin, who is raising money for a children’s home in Mumbai, India, is rowing at an average speed of 58 kilometres each day. His diet consists of freeze-dried foods and fish, which are keeping him physically well-conditioned despite tiring mentally.

Tuijn is a serial adventurer and experienced rower. He has rowed across the Atlantic Ocean and the North Sea, as well as cycled across Russia and the icy terrain of Greenland.

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Tuesday, May 31, 2005

One thousand residents of the Defense Department-managed Armed Forces Retirement Home in Washington, D.C. filed a class-action lawsuit on May 24, asserting that the cut-backs in medical and dental services imposed by Secretary of Defense Donald Rumsfeld are illegal. The operating budget for the home was reduced from $63 million in 2004 to $58 million for 2005. The residents cite cuts in on-site X-ray, electrocardiogram, physical and dental services, and the closing of the home’s main clinic and an on-site pharmacy.

Chief Financial Officer Steve McManus responded that the changes not only save money but also achieved improved efficiencies. “We’re really trying to improve the benefits to our residents,” he said.

Most of the home’s costs are paid for by a trust fund and monthly fees paid by residents. By law, the Armed Forces Retirement Homes are required to fund, “on-site primary care, medical care and a continuum of long-term care services.”

Tuesday, March 31, 2009

Local municipal and provincial volunteers in Manitoba, Canada are exhausted in their efforts to divert the rising waters of the Red River of the North.

It has been hard work with little sleep for the residents who live on the shores of the Red River to shore up their defences with sandbags, build dikes, clear frozen culverts and break ice jams

Volunteers to spell relief for local volunteers and food are desperately needed.

“It’s a week now we’ve been doing this … you’re talking four, five, six public works guys. In my one community we’ve got 25 volunteer firefighters and those guys have been going 24/7, so of course it’s wearing them down.” said Paul Guyader, Manitoba’s emergency measures coordinator.

“We’re dealing with one of the biggest floods the province has ever seen,” said Steve Strang, mayor of St. Clements, Manitoba “We’ve put out hundreds of thousands of bags already. The municipalities are working very well, we’re working with the provincial government, we’ve brought in every possible resource we could to address this issue. The volunteerism within the community has been phenomenal.”

The Portage Diversion has taken some spring waters from the Assiniboine River and diverted the flow to Lake Manitoba.

Roseau River Anishinabe First Nation has been totally evacuated, as well as many homes near the Canada – United States border.

The cold weather is freezing the ice jams into place. Guyader has had 2 Amphibex Excavators operating on the river breaking up ice.

The Red River is right now 16.7 feet (5 metres) above spring ice conditions. The Red River Floodway gates cannot be opened with the current ice jams.

“If we operate now, we can get ice jamming going into the floodway, jamming up against the St. Mary’s bridge, as such, the floodway capacity would be reduced and would cause higher water levels in the city of Winnipeg.” said Steve Topping, Manitoba Water Stewardship spokesman

The floodway was constructed in 1968 following the 1950 flood to divert the overflow spring flooding waters of the Red River. The floodway has been widened the since the 1997 “flood of the century” and the expansion is expected to be completed this spring. As well Manitoba built permanent dikes around communities within the flood plain since the last two major floods..

The Red River waters will crest between the beginning of April to mid April, at which time also the weather should be warming up. Communities are bracing for higher water levels, more ice jams as well as melting snow in the warmer spring temperatures.

Friday, November 3, 2006

On November 13, Torontonians will be heading to the polls to vote for their ward’s councillor and for mayor. Among Toronto’s ridings is Don Valley West (Ward 25). Three candidates responded to Wikinews’ requests for an interview. This ward’s candidates include John Blair, Robertson Boyle, Tony Dickins, Cliff Jenkins (incumbent), and Peter Kapsalis.

For more information on the election, read Toronto municipal election, 2006.

Friday, September 22, 2006

Two weeks after Chinese surgeons successfully transplanted a donated penis onto an unidentified 44-year-old man, they were requested to remove it. Despite functioning perfectly and having been physically accepted by the body, the patient and his wife asked for the penis to be amputated, due to the severe psychological trauma they had both suffered.

A team of surgeons led by Dr Hu Weilie took 15 hours to attach the penis, which was donated by the family of a 22-year-old brain-dead patient. Doctors have successfully re-attached patients’ own severed members in the past, but this was the first use of a second-party penis.

The psychological rejection of the penis is not unusual from a medical point of view; in 2001 surgeons removed the world’s first transplanted hand from donee Clint Hallam, who wanted the “hideous and withered” hand to be removed because he had become “mentally detached” from it. The team that led the transplant have since performed the world’s first double arm transplant.

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Friday, November 28, 2008

Two major retail chains in the United Kingdom — general retailer Woolworths Group and furniture vendor MFI Group — have entered administration. Entertainment UK — which distributes videos and DVDs to retailers and are owned by Woolworths — have also entered administration.

“The boards of Woolworths PLC and Entertainment UK Ltd have concluded that there is no longer any prospect of those businesses being able to operate as a going concern,” said a Woolworths statement.

Woolworths, who sells household goods, music and other items, owns 815 stores nationwide, and MFI owns 111. MFI CEO Gary Favell said he had “secured the future of the MFI business” in September when he led a management buyout, but cracks rapidly appeared. Favell revealed administrator Kroll were to take control of the property division and half the stores were surrendered to the administrators. He also asked landlords to grant a three-month period of no rent for the ‘new’ MFI, which only some agreed to, leaving Kroll to seek payment for the rest.

Now the entirety of MFI is in administration, with MCR as the administrator. “Closing down sales” have been announced by MCR. Analysts predict that while in the short term consumer confidence will be damaged by the collapse, in the middle term it will help the situation as excess competition and capacity are removed. MFI employs 1,500 people.

The administrators for Woolworths and Entertainment UK are consultancy firm Deloitte Touche Tohmatsu. “In the last 24 hours we have received expressions of interest from a number of parties for both the retail and wholesale businesses,” said Deloitte partner Dan Butters. “We are working hard to ensure that any sale of the business, in whole or part, will preserve jobs.” The 25,000 Woolworths employees have their positions safe until Christmas.

Shares in Woolworths have been suspended at just over a penny each. The firm also owns 2Entertain, a DVD publishing joint venture with BBC Worldwide, and book wholesalers Bertram Books. Both are currently operating as usual, although Woolworths is seeking to sell 40% of 2Entertain to the BBC.

“The important thing is in the long run that employees in this company – where the businesses and the shops are not going to stay open in the longer term – can get other jobs quickly,” Prime Minister Gordon Brown said. “That’s why we’re going to move in immediately to give advice to employees.”