Saturday, March 29, 2008

There were 8 games played in the National Hockey League on March 28, 2008.

Thursday, June 23, 2011

NASA’s Cassini–Huygens spacecraft has discovered evidence for a large-scale saltwater reservoir beneath the icy crust of Saturn’s moon Enceladus. The data came from the spacecraft’s direct analysis of salt-rich ice grains close to the jets ejected from the moon. The study has been published in this week’s edition of the journal Nature.

Data from Cassini’s cosmic dust analyzer show the grains expelled from fissures, known as tiger stripes, are relatively small and usually low in salt far away from the moon. Closer to the moon’s surface, Cassini found that relatively large grains rich with sodium and potassium dominate the plumes. The salt-rich particles have an “ocean-like” composition and indicate that most, if not all, of the expelled ice and water vapor comes from the evaporation of liquid salt-water. When water freezes, the salt is squeezed out, leaving pure water ice behind.

Cassini’s ultraviolet imaging spectrograph also recently obtained complementary results that support the presence of a subsurface ocean. A team of Cassini researchers led by Candice Hansen of the Planetary Science Institute in Tucson, Arizona, measured gas shooting out of distinct jets originating in the moon’s south polar region at five to eight times the speed of sound, several times faster than previously measured. These observations of distinct jets, from a 2010 flyby, are consistent with results showing a difference in composition of ice grains close to the moon’s surface and those that made it out to the E ring, the outermost ring that gets its material primarily from Enceladean jets. If the plumes emanated from ice, they should have very little salt in them.

“There currently is no plausible way to produce a steady outflow of salt-rich grains from solid ice across all the tiger stripes other than salt water under Enceladus’s icy surface,” said Frank Postberg, a Cassini team scientist at the University of Heidelberg in Germany.

The data suggests a layer of water between the moon’s rocky core and its icy mantle, possibly as deep as about 50 miles (80 kilometers) beneath the surface. As this water washes against the rocks, it dissolves salt compounds and rises through fractures in the overlying ice to form reserves nearer the surface. If the outermost layer cracks open, the decrease in pressure from these reserves to space causes a plume to shoot out. Roughly 400 pounds (200 kilograms) of water vapor is lost every second in the plumes, with smaller amounts being lost as ice grains. The team calculates the water reserves must have large evaporating surfaces, or they would freeze easily and stop the plumes.

“We imagine that between the ice and the ice core there is an ocean of depth and this is somehow connected to the surface reservoir,” added Postberg.

The Cassini mission discovered Enceladus’ water-vapor and ice jets in 2005. In 2009, scientists working with the cosmic dust analyzer examined some sodium salts found in ice grains of Saturn’s E ring but the link to subsurface salt water was not definitive. The new paper analyzes three Enceladus flybys in 2008 and 2009 with the same instrument, focusing on the composition of freshly ejected plume grains. In 2008, Cassini discovered a high “density of volatile gases, water vapor, carbon dioxide and carbon monoxide, as well as organic materials, some 20 times denser than expected” in geysers erupting from the moon. The icy particles hit the detector target at speeds between 15,000 and 39,000 MPH (23,000 and 63,000 KPH), vaporizing instantly. Electrical fields inside the cosmic dust analyzer separated the various constituents of the impact cloud.

“Enceladus has got warmth, water and organic chemicals, some of the essential building blocks needed for life,” said Dennis Matson in 2008, Cassini project scientist at NASA’s Jet Propulsion Laboratory in Pasadena, California.

“This finding is a crucial new piece of evidence showing that environmental conditions favorable to the emergence of life can be sustained on icy bodies orbiting gas giant planets,” said Nicolas Altobelli, the European Space Agency’s project scientist for Cassini.

“If there is water in such an unexpected place, it leaves possibility for the rest of the universe,” said Postberg.

Sunday, April 19, 2009

Six-year-old Thomas David Horne from the United Kingdom has died and eleven other British tourists were injured Friday when their plane crashed in Canaima National Park in Venezuela. They were on a sight seeing tour of the world’s tallest waterfalls, the Angel Falls.

The single engine, nine-seater Cessna 208 Caravan, lifted off shortly before the end of the runway, lost power, and then surged briefly before plummeting into the Venezuelan jungle in front of the 3,200 ft falls.

“It started to take off and we sensed it was losing power. Then it seemed to get it back and lifted off just 200 metres before the end of the runway. Then it dived into the trees,” reported Makeli Freire, a park tour guide.

Three of the injured sustained serious injuries, while the others suffered mainly broken bones. Thomas Horne, who sustained serious head injuries, died on the way to a local hospital. The pilot, co-pilot and tour guide were among the injured. Everyone on board was flown to Ciudad Bolívar, the capital city of Venezuela’s Bolívar state, where they were treated for their injuries. Among the injured were Thomas’s mother and father Jane and David who were among those who had broken bones. They were British tourists finishing up a two week holiday to Venezuela.

“The young boy died as he was being flown to hospital. His parents are both physically OK but are completely distraught over the loss of their son,” said Maiker Puga, of the Ciudad Bolivar clinic.

Liz and her husband Keith Grainger and S. Phillips, also British tourists, were also injured in the crash. The names of the three other British tourists and the three person crew who were injured have not been released at this time.

The plane tour was offered by First Choice, a division of TUI Travel PLC who extended their “heartfelt sympathy to family and friends during this deeply sad time.” LTA airline has suspended further flights until the investigation is concluded.

June Holman, Thomas’s aunt who was not on holidays said, that “there is nothing worse than losing a loved one, especially not a young child with their whole life ahead of them. The thoughts of us all are with his parents Jane and Dave at this very sad time.”

Sunday, August 21, 2005

A robotic system at Stanford Medical Center was used to perform a laparoscopic gastric bypass surgery successfully with a theoretically similar rate of complications to that seen in standard operations. However, as there were only 10 people in the experimental group (and another 10 in the control group), this is not a statistically significant sample.

If this surgical procedure is as successful in large-scale studies, it may lead the way for the use of robotic surgery in even more delicate procedures, such as heart surgery. Note that this is not a fully automated system, as a human doctor controls the operation via remote control. Laparoscopic gastric bypass surgery is a treatment for obesity.

There were concerns that doctors, in the future, might only be trained in the remote control procedure. Ronald G. Latimer, M.D., of Santa Barbara, CA, warned “The fact that surgeons may have to open the patient or might actually need to revert to standard laparoscopic techniques demands that this basic training be a requirement before a robot is purchased. Robots do malfunction, so a backup system is imperative. We should not be seduced to buy this instrument to train surgeons if they are not able to do the primary operations themselves.”

There are precedents for just such a problem occurring. A previous “new technology”, the electrocardiogram (ECG), has lead to a lack of basic education on the older technology, the stethoscope. As a result, many heart conditions now go undiagnosed, especially in children and others who rarely undergo an ECG procedure.

Wednesday, September 26, 2007

Suzanne Fortin is running for the Family Coalition Party in the Ontario provincial election, in the Nepean-Carleton riding. Wikinews’ Nick Moreau interviewed her regarding her values, her experience, and her campaign.

Stay tuned for further interviews; every candidate from every party is eligible, and will be contacted. Expect interviews from Liberals, Progressive Conservatives, New Democratic Party members, Ontario Greens, as well as members from the Family Coalition, Freedom, Communist, Libertarian, and Confederation of Regions parties, as well as independents.

Friday, July 7, 2017

On Wednesday, automobile company Volvo announced all of its cars to be released in 2019 onwards are to use some form of battery-powered engine, leaving conventional petrol-only vehicles altogether. The decision comes after Volvo announced in May their intent to cease production of diesel vehicles.

The chief executive of Volvo Cars, Håkan Samuelsson, said, “People increasingly demand electrified cars”. Volvo aims to release five new electric vehicle models between 2019 and 2021. While little has yet been revealed about them, the company has stated two of them are to be high-performance electric vehicles, branded as Polestars.

Other car models from 2019 may be plug-in hybrid or 48-volt “mild hybrid” systems. Audi and Mercedes-Benz are also releasing mild hybrid cars for the European market.

“This announcement marks the end of the solely combustion engine-powered car. Volvo Cars has stated that it plans to have sold a total of 1m electrified cars by 2025. When we said it we meant it. This is how we are going to do it,” Samuelsson said. Volvo is owned by Chinese automotive giant Geely, and China’s Ministry of Industry and Information Technology has said by 2025 they want new vehicle sales to be 20 percent “new energy vehicles”.

Monday, April 21, 2008

Sunday was the last day of Pope Benedict XVI’s six-day visit to the United States. The first event was a visit to the World Trade Center site in Lower Manhattan, New York City, New York.

The Pope rode his Popemobile down a ramp, to the bottom of the site. Accompanied by Cardinal Edward Egan, the archbishop of New York, he knelt at a rectangular pool and prayed silently for the victims of the September 11 attacks. Then he held up a single lit candle, before he began to speak.

“Turn to your way of love those whose hearts and minds are consumed with hatred,” the Pope said. “Grant that those whose lives were spared may live so that lives lost here may not have been lost in vain.”

“God of peace, bring your peace to our violent world; peace in the hearts of all men and women and peace among the nations of the earth,” he said. Afterwards, he met with family members of 16 of the victims and also with four of the rescue workers.

“I didn’t really have anything to say to him,” George Bachmann, a now-retired fire fighter, who broke his back and suffered burns as a first responder. “Being in his presence was enough for me.”

In the afternoon on Sunday, Benedict XVI travelled to The Bronx to hold Mass at Yankee Stadium, which is the home stadium for the New York Yankees baseball team. The stadium has been the scene of papal Masses by Paul VI in 1965 and John Paul II in 1979.

The Popemobile entered the stadium at 2:19 p.m. EDT (UTC-4) and drove around the baseball field in front of the crowd of over 57,000.

“Your pastoral visit is for all of us gathered here in New York a blessing for which we are all grateful,” said Cardinal Egan in his introduction. “It is an extraordinary privilege to be allowed to tell you what a deep and appreciated grace your presence is for all of us.”

Benedict XVI told the crowd that the Mass was “a summons to move forward with firm resolve to use wisely the blessings of freedom, in order to build a future of hope for coming generations.”

During the homily, the Pope said “The Gospel teaches us that true freedom, the freedom of the children of God, is found only in the self-surrender which is part of the mystery of love. Only by losing ourselves, the Lord tells us, do we truly find ourselves.” He also touched on the subjects of peace, human rights and religious freedom which had been hallmarks of his previous addresses while in the United States.

It also marked the 200th anniversary of the archdioces in New York, Philadelphia, Boston and Louisville, which were all created in April 1808.

“It’s like Jesus Christ visiting America,” Clemens Semon, 50, a resident of Ozone Park, Queens who immigrated from Ivory Coast told The New York Times. “You see how many pack together, come together to see him? He’s a unifier, he brings hope and peace.”

Vice President Dick Cheney and his wife Lynne Cheney joined the Pope for the farewell ceremony at New York’s John F. Kennedy International Airport. Senator and presidential candidate Hillary Clinton and former President Bill Clinton had been expected, but did not attend. They were even mentioned in Cheney’s prepared remarks.

“You’ve encountered a nation facing many challenges, but with more blessings than anyone could count,” Cheney said in his five-minute speech. “All Americans respect your message of peace, justice and freedom.”

In the Pope’s remarks, the pontiff mentioned the visit to the World Trade Center site, “My visit this morning to Ground Zero will remain firmly etched in my memory.” His last comment as he turned to leave was, “May God Bless America.”

Benedict XVI waved goodbye from the doorway of his Alitalia “Shepherd One” at 8:40 p.m. EDT.

The papal airplane “Shepherd One” touched down at Rome Ciampino Airport, Italy, at 10:40 a.m. CEST (UTC+2) on Monday.