Saturday, February 12, 2011

In the final quarter of 2010, airline Air Canada (TSX:AC.B) earnings rose to 134 million CAD, 42 cents per share, capping a sharp return to profitability in 2010.

The year resulted in the company’s highest-ever earnings before interest, taxes, depreciation, amortisation, and rent (EBITDAR) of $1.39 billion, 707 million more than the previous year. Operating income for fourth quarter was reported as $85 million, which compared very favourably with an $83 million loss in 2009.

Only 21 months ago Air Canada was threatened with bankruptcy and using its financial weakness in negotiations with its employees, achieving status quo contracts. With labour contracts scheduled to end this month and next, the strong position of the airlines is expected to stiffen union resolve to share in the increased net revenues.

Those revenues were helped by increasing numbers of passengers and reducing costs, as well as foreign exchange gains. International travel, especially to the Pacific region, led the rises. US travellers through the main Toronto hub more than doubled, indicating the increase in foreign air traffic to and through Canadian airports.

Tuesday, April 1, 2008

Many media outlets traditionally deliberately spread hoaxes on April Fools’ Day, including notable quality sources such as National Geographic and Science.

The popular British tabloid The Sun wrote that French President Nicolas Sarkozy is to undergo stretch surgery to make him taller than his wife, Italian artist and model Carla Bruni. The report claimed the 5 foot 5 inch leader would be made 5 inches taller in one year using a method by Israeli professor Ura Schmuck. The Sun noted that during his visit to Britain last week, Sarkozy had high-heel shoes while his wife wore a pair of flat pumps.

The Guardian on the other hand ran an article that suggested that Carla would head an initiative by Prime Minister Gordon Brown to bring more glamour, good taste and sophistication to the U.K. general population. This would involve collaboration with Marks & Spencer for high-street fashion and Jamie Oliver for meals and wine.

BBC News had real-looking footage of flying penguins fronted by documentary host Terry Jones, which were actually an advertisement for its new iPlayer.

Friday, January 8, 2010

Tsutomu Yamaguchi, the only Japanese civilian to be officially recognized as having survived both the atomic bombings of Hiroshima and Nagasaki by the United States in August of 1945 at the conclusion of World War Two, has died this Monday at the age of ninety-three, due to stomach cancer—one of the numerous illnesses that he suffered throughout his lifetime as a direct result of his exposure to nuclear radiation.

Mr. Yamaguchi, although he was against his nation’s involvement in the War, worked as a engineer for Mitsubishi—a company that helped equip and supply the Japanese Imperial Army. He was on business in Hiroshima at the time of the first bombing on August sixth. His almost direct exposure to the atomic explosion temporarily blinded him, ruptured his ear drum (leaving him permanently deaf in his left ear), and severely burnt the top half of his body. Three days later, having gone back to work in Nagasaki, he was approximately three kilometers away from the site of the second bomb. Although he was exposed to significant radiation in this instance as well, Mr. Yamaguchi was left relatively unscathed.

Following Japan’s surrender and the end of the War days later, Mr. Yamaguchi worked as a translator for the occupying American forces and later as a local schoolmaster, before eventually returning to Mitsubishi—which had since then become an automobile manufacturer.

In his later years, Mr. Yamaguchi became a respected lecturer who gave talks about his experiences, and publicly spoke out against the stockpiling of nuclear weapons.

For instance, in 2006, he addressed the United Nations General Assembly. “Having been granted this miracle, it is my responsibility to pass on the truth to the people of the world,” Mr. Yamaguchi said to the Assembly. He went on to say, “My double radiation exposure is now an official government record. It can tell the younger generation the horrifying history of the atomic bombings even after I die.”

When asked by the British Broadcasting Corporation what his reaction was to Mr. Yamaguchi’s death, the mayor of Nagasaki said that “a precious storyteller has been lost.”

Among the family and friends Mr. Yamaguchi left behind were his three adult children—who have also had health issues in their lifetimes thus far that they think may have be related to their father’s initial exposure.

Monday, March 9, 2009

Wolfram Research Inc., makers of Mathematica and A New Kind of Science, have released a limited alpha of their new web service Wolfram Alpha. Wolfram Alpha is described by CEO Stephen Wolfram as a “computational knowledge engine.” Unlike Google, Yahoo! and other traditional web search engines that rely on statistical methods for retrieving online documents, Wolfram Alpha answers factual questions in the way that Wikipedia does, except it relies on analytical methods instead of human-generated documents.

Although the product is still in a limited release some details about its operation and design have been revealed by Wolfram on his blog, and by Nova Spivack who recently interviewed Wolfram about Wolfram Alpha. The product is available on the Web as a single search box reminiscent of Google’s main search page. The search queries can be entered in natural language and the natural language system will parse the query and use models of knowledge (ontologies) and human-curated data to return an answer including graphs and other representations. The ontologies and data are managed by Wolfram employees who must input new ontologies and data by hand or, occasionally, with the assistance of programmatic tools. It is expected that an Application Programming Interface (API) will eventually be available, although it is not known what the API will be used for.

Unlike traditional search engines Wolfram Alpha does not search online documents, and thus does not return answers to “fuzzy” questions, such as opinion or advice. Instead, the scope of answers is limited to the knowledge that has already been modeled and encoded in the ontologies and the associated data. In this way the system can generate knowledge that was previously unknown. It is thought that while Wolfram will concentrate on scientific and technical information the system may eventually be able to answer questions in other domains, such as stock information, geography and history. In theory, any question with a factual answer could be answered by Wolfram Alpha.

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.

Monday, July 6, 2009

The Obama administration has given the National Security Agency powers to screen private Internet traffic going to and from government sites, and will use AT&T telecommunications as a likely test site. The Obama administration remains firm in this decision, which was put forth during the Bush administration.

The agency defends military networks with a classified system named Tutelag, which decides how to handle malware intrusions (for example, whether to block them or to investigate more closely). “We absolutely intend to use the technical resources, the substantial ones, that NSA has,” said Janet Napolitano, Secretary of the United States Department of Homeland Security (DHS). DHS’s intrusion detection program, Einstein version 3, is in development as version 2 is being deployed. The program defends all U.S. government agencies and departments.

DHS spokeswoman Amy Kudwa said, “We are moving forward in a way that protects privacy and civil liberties.”

AT&T, the chosen test site under Bush, sought assurance from the Obama administration to determine what elements of Einstein 3 to preserve. AT&T officials declined to comment.

In 2006 the Electronic Frontier Foundation filed the class action lawsuit Hepting v. AT&T—currently awaiting decision—against AT&T, which under the Bush administration permitted the NSA to look at domestic communications without a warrant. NSA’s intelligence gathering is limited only to foreign communications.

“We came away saying they have a lot of work in front of them to get this done right,” Ari Schwartz of the Center for Democracy and Technology (CDT) said. “We’re looking forward to their next steps.”

Schwartz authored a letter on Einstein to the Office of Management and Budget in December 2008 on behalf of the Information Security and Privacy Advisory Board.

NSA director Keith B. Alexander said in April 2009 that the NSA will help, but does not want to take charge. Several people—including Rod Beckstrom, who resigned over the issue as head of the National Cyber Security Center (NCSC); Bruce Schneier of BT Counterpane; Leslie Harris, president and CEO of CDT—and not Dennis Blair, Director of National Intelligence—have urged the Obama administration to keep the Department of Homeland Security in charge despite its low scores, because, they claim, the NSA is a spy agency.