Saturday, October 14, 2006

An American inventor has patented a pair of new time formats with a footprint less than 50% of that of conventional four-digit time. The more unusual of the two new formats, called “TWELV”, dispenses with numerals altogether. In place of clock hands or digits, the new clock uses color to convey the hour and a moon image to convey the minute, which moon slowly grows throughout the course of an hour from a narrow crescent to a full-fledged circle.

The second and more approachable of the new formats retains numerical digits to indicate the minute but uses colors to convey the hour.

Early critics question whether the aesthetic benefits of the moon-clock will be sufficient to encourage users to learn the color-based time-telling system. However, the size advantages of the new system may make it particularly suitable for mobile applications, particularly cell phones, wearable computers, and head-mounted displays.

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.

Friday, January 22, 2010

A six-year-old boy from the county of Berkshire in England, United Kingdom, who fell through a frozen pond on January 5, has died. The pond is near to the location of his house where he was playing with one of his friends. Thomas Hudson — or Tommy as he was also known — was trapped underneath the garden pond in Crookham Common, which was six feet in depth, for 30 minutes. It is not clear what exactly caused Thomas to fall into the pond.

After calls for help from Tommy’s playmate, a woman went into the water and searched for Thomas. It is believed that the woman was related to Tommy. A fire crew managed to take Thomas out of the water. After ambulance workers found themselves unable to restart his heart, Tommy was taken by aircraft to John Radcliffe Hospital in Oxford, Oxfordshire. There, an emergency operation was carried out on him before Thomas was placed on a life support machine. He died on January 21 after he failed to regain consciousness.

It has been reported that Thames Valley Police are launching an investigation into the death. However, the police has said that there are no suspicious circumstances as far as they are concerned.

Hugh Whitaker was one of the people assisting in the search for Thomas on January 5. “We worked as a team with the fire service to locate the boy in the water and he was pulled out,” Whitaker stated. “It was thought he had been in there for around half an hour. Once he was located he was taken to the air ambulance and on to the John Radcliffe Hospital after being treated by a doctor. He was in cardiac arrest at the scene. A woman who went into the water was examined by paramedics at the scene but she did not require hospital treatment. The lake was between 15 and 20 metres by 15 and 20 metres in size. From where he was recovered from he would have had to have walked out onto the water — he was not far from the centre of the frozen lake.”

A statement released from the Oxford Radcliffe Hospitals NHS Trust that said: “We are very sorry to confirm that Tommy Hudson died peacefully at our hospital this [Thursday] morning. Tommy’s parents ask that their privacy be respected at this very difficult time.”

Wednesday, January 10, 2007

Apple Inc. today has introduced the much-anticipated iPhone at the Macworld Conference in San Francisco.

The iPhone is claimed to be “a revolutionary mobile phone” as stated on the Apple website. The device appears to be running a mobile version of the Apple operating system Mac OSX. It is approximately the same size as a 5th generation iPod, it has a 3.5-inch LCD touchscreen display that is used to access all features of the phone including number dial, as well as making phone calls. The iPhone plays music, movies, displays pictures and is able to connect to a wireless network.

Apple CEO Steve Jobs unveiled the device by walking onto the stage and taking the iPhone out of his jeans pocket. During his 2 hour speech he stated that “Today Apple is going to reinvent the phone, We are going to make history today”.

Today Apple also released their Media Center device – Apple TV. It will directly compete with Microsoft’s Media Center operating system. Apple has taken a different approach to the media center market; rather than storing content (such as movies, music and photos) on the device, Apple TV connects to a computer (Mac and Windows) over a wirless network connection and plays all content stored on that computer. This makes it substantially easier for users to organize their media content.

Saturday, October 21, 2006

The upcoming 2006 Brampton municipal election, to be held November 13, features an array of candidates looking to represent their wards in city council or the council of the Peel Region.

Wikinews contributor Nick Moreau contacted many of the candidates, including Innocent Watat, asking them to answer common questions sent in an email. This ward’s incumbent is Bob Callahan; Balbir Babra, Manny Bianchi-Morfino, Dolly Khokhar, Maria Peart, Tim Turcott, and Sheila White.

Saturday, February 18, 2006

The Japan Aerospace Exploration Agency has successfully launched another of their H-IIA space rockets. Its payload, the MTSAT-2 satellite designed to control air traffic and track weather patterns, has successfully separated from the rocket. It is due to be inserted into a geostationary orbit on the 21st of February.

The satellite is owned by the Civil Aviation Bureau and the Japan Meteorological Agency, part of the Ministry of Land, Infrastructure and Transport.

The rocket was launched from the Tanegashima space centre in the southern region of Kagoshima, at 15:55 (06:55 GMT). It is the ninth in a series of H-IIA rockets, which form the main part of the Japanese space program. A previous H-IIA rocket was launched less than a month ago.

Tuesday, February 21, 2006

The Australian government has confirmed it will send an extra 200 troops to Afghanistan as part of a security and reconstruction team. Prime Minister John Howard says troops will leave from late July and will spend about two years in Afghanistan separate from the Special Forces and commandos already serving there. In a press conference in Canberra today, Mr Howard said the deployment was “further evidence of the government’s ongoing commitment to assist the people of Afghanistan in consolidating their embrace of democracy and resisting any attempt on the part of the Taliban to come back.”

The Australian Greens oppose the deployment of new troops. In a press release, Senator Bob Brown voiced his opinion on the matter, and said the following about Australia’s deployment: “The announcement that Australia will be sending 200 more troops to Afghanistan comes hard on the heels of the Bush administration announcing the withdrawal of 3000 troops from the same theatre,” he said. “Without the US withdrawal there would be no Australian deployment. This is John Howard once again using the ADF to meet the Bush administration’s political shortcomings. Our troops should be kept at home.”

“The ADF contribution will be a mixed security and reconstruction taskforce of approximately 200 personnel and will be deployed over a period of two years,” Howard told reporters. The Australian Defence Force (ADF) troops will be deployed from late July and work alongside Dutch soldiers as part of a NATO force. The extra 200 troops will bring the number of ADF personnel to more than 500.

Australia sent 1,550 troops to Afghanistan in 2001, including special forces, to join the U.S.-led strikes against the Taliban regime. Australia’s only fatality in Afghanistan came in February 2002 when a soldier was killed after his vehicle hit a land mine. Violence has intensified in Afghanistan in recent months, particularly in the south and east, with a wave of raids, roadside and suicide bombings killing dozens of people.