Sunday, May 8, 2005

Mars rover engineers have built a test bed simulating the condition of the Mars Rover Opportunity, which became stuck in a Martian sand dune on April 26. The test bed uses a combination of materials including play sand for children’s sandboxes, diatomaceous earth for swimming pool filters, and mortar clay powder.

Opportunity dug into soft sand to wheel-hub depth as it drove over a dune about one-third meter (one foot) tall and 2.5 meters (8 feet) wide. “We’ve climbed over dozens of ripples, but this one is different in that it seems to be a little taller and to have a steeper slope, about 15 degrees on part of its face,” said Mark Maimone, a Jet Propulsion Laboratory (JPL) rover mobility engineer. Tests will be conducted using an Earth-bound twin of the rover and the simulated Martian dune to determine how to best maneuver Opportunity out of the predicament before transmitting commands to the actual vehicle.

“We choose to proceed cautiously, so we don’t expect to begin actually driving out of the dune before next week, possibly later,” said Jim Erickson, rover project manager at JPL. “Both Opportunity and Spirit have already provided many more months of scientific exploration than anyone expected. By taking good care of them, we hope to keep them exploring for more months to come. Tests so far have sustained our optimism about Opportunity’s ability to drive out of this dune, but we have more testing ahead to understand how robust that capability is.”

Engineers constructed a simulated dune last week using sand that was already at JPL’s rover testing facility and put a test rover into a similar dug-in position. The test rover had no difficulty driving away, even when sunk belly-deep. However, that sand offered better traction than the finer, looser material that appears to make up the surface at Opportunity’s current position. “We needed to do tests using material more like what Opportunity is in, something that has a fluffier texture and cakes onto the wheels,” said JPL rover engineer Rick Welch, who is leading the tests.

Based on images of wheels and wheel tracks from Mars, Dr. Robert Sullivan of Cornell University, a rover science team member, working with engineers in the JPL test bed, helped match the properties of the test sand as closely as possible with those of the sand beneath Opportunity, “We found that when the wheels dig in, the material we’re using does stick to the wheels and fills the gaps between the cleats, but it doesn’t stick when you’re just driving over it. That’s good because it’s the same as what we see in the images from Opportunity,” Sullivan said. Experiments show that the test rover, after some initial wheel-spinning, can drive out of the more powdery material.

The team went to several home supply and hardware stores to find enough bags and boxes of the ingredients to make more than 2 tons of the simulated Mars sand for the more realistic mobility tests, according to JPL rover mobility engineer Jeff Biesiadeckia.

Friday, November 25, 2011

Scottish football team Hibernian F.C. (Hibs) have appointed Pat Fenlon as their new manager. Fenlon signed the contract at Hibs’ Easter Road home ground in the capital, Edinburgh.

Fenlon left Bohemian F.C., an Irish football team he managed since 2008, so that he could manage Hibernian, which he is “really excited by”. Fenlon’s management career has previously remained in his native Ireland. From 2002, Fenlon managed Shelbourne F.C., which won the UEFA Cup in three of the five seasons he managed the team for. Fenlon went on to manage Derby City in 2007 before taking the managing position at Bohemians. According to Fenlon, Hibernian are “a club with a rich history and proud traditions.” Fenlon’s Hibs contract will last until the conclusion of 2013 / 2014 football season.

Hibs have now had five managers in as many years. Colin Calderwood is the most recent before Fenlon, being removed from his position on November 6 after twelve months managing the team. In that time they played in forty-nine matches and won in twelve of them. Calderwood has since gone on to become part of Birmingham City F.C., a football team based in the English city of Birmingham.

At the end of the previous football season, Hibernian F.C. placed tenth. As it stands, the team are currently ninth in the Scottish Premier League table. In reference to what he called the “quality players on Hibernian’s playing staff”, Fenlon stated that “there will need to be a lot of hard work and a clear change in mindset shown collectively by the team” and that a major target for them will be “to provide winning football to the Hibernian supporters, who have gone through some hard times recently.”

Tuesday, April 5, 2005Irish betting shop chain, Paddy Power, is taking bets for a new Pope. The current front runners are Cardinal Francis Arinze of Nigeria and Cardinal Dionigi Tettamanzi of Italy, who have each been given odds of 11-4.

“Our feeling is, we held off a few days, and now the cardinals themselves are convening in Rome,” Darren Haines, a spokesman for Paddy Power said.

“We do it very much in the same way as a horse race,” Haines added, “Without sounding so callous, in a sense, we have contenders, and you very much rate the speculation on the contenders, very much by going on media reports in the religious press … Our trading manager is very clued up on this, though she hasn’t had divine intervention.”

The full betting list can be found here.

Tuesday, January 12, 2010

New Jersey’s state legislature has passed a bill that will legalize medicinal marijuana for patients with chronic disease. The state’s outgoing Governor, Jon Corzine, said that he will sign the bill before he leaves office next week. Upon passage of the bill, New Jersey will become the 14th state in the nation to permit medical marijuana.

Patients with a prescription would be able to purchase up to 2 ounces (56.7 grams) of cannabis per month. The bill specifies that only certain chronic diseases are eligible, ALS, AIDS, cancer, muscular dystrophy, and multiple sclerosis. The bill specifically bans the unlicensed growing of cannabis, driving under the influence of the drug, and only allows six licensed dispensaries in the state.

One of the supporters of the bill, Assemblyman Reed Gusciora said that “I truly believe this will become a model for other states because it balances the compassionate use of medical marijuana while limiting the number of ailments that a physician can prescribe it for”.

Opponents of the bill point to California where they say that cannabis is too loosely regulated. Governor-elect Chris Christie said that “I think we all see what’s happened in California,” he said. “It’s gotten completely out of control.”

Monday, July 6, 2020

A number of Muslim-majority countries around the world implement Shari’a — commonly known as Islamic law — and have laws against apostasy and blasphemy. Numerous times, over the years, people have been sentenced to death penalty for renouncing Islam. Back in 2018, a Pakistani journalism student Mashal Khan was killed by a mob lynch after he was accused of blasphemy. At times there have been protests against the restrictions on free speech in Islam.

Other than the restriction of free speech, many Muslim majority countries have declared homosexuality as a capital crime, and observe a strict dress code for women. Iran has banned a number of female chess players for not wearing a hij?b. An Iranian woman was sentenced 20 years for removing hij?b while protesting the strict dress code.

Wikinews had gotten in touch with Tanzanian-born ex-Muslim Zara Kay to discuss the struggles an ex-Muslim woman faces, as well as her organisation: Faithless Hijabi.  Faithess Hijabi is an organisation which helps other ex-Muslim women by sharing their stories and experiences.  Its Facebook page has over 7000 likes, and Zara Kay, who identifies herself as an antithiest, had prefiously helped a Saudi teenager Rahaf Mohammed escape to Canada.

The following is the interview with Zara Kay that took place last year.

[edit]

Saturday, October 12, 2019

In findings published Wednesday in Science Advances, researchers from the University of Colorado at Boulder (CU Boulder) in Colorado and the College of Wooster in Ohio reported a new mechanism by which warm ocean currents erode the ice shelves along the coast of Antarctica, contributing to the planet’s rising oceans.

“Warm water circulation is attacking the undersides of these ice shelves at their most vulnerable points,” said study co-author Karen Alley. The Wooster professor added, “These effects matter […] But exactly how much, we don’t yet know. We need to.”

The researchers used satellite imagery to identify places where coastal ice sheets had melted, creating areas of open water called polynyas, which, they observed, occurred in the same places every year. From this, they concluded that warm water was reaching the ice sheets in the same places every year as well.

Because warmer water is more buoyant, says the study, it rises above cooler water, creating what the scientists describe as an “upside-down river” flowing underneath the layers of ice. Ice shelves tend to weaken as they move, forming cracks and crevasses at their edges and stretch points. Warm water, being on top, tends to become even more likely to find these cracks, so increasing the ice mass’ melt rate.

Ice shelves are not actually part of the land mass with which they are associated. Rather, they float along the coast nearby. Because they can be prevented from drifting further away by high places in the ocean floor, they can in turn prevent land-associated ice masses from becoming detached.

“Now we’re seeing a new process, where warm water cuts into the shelf from below,” said study co-author Ted Scambos of CU Boulder’s Cooperative Institute for Research in Environmental Sciences (CIRES). “Like scoring a plate of glass, the trough renders the shelf weak, and in a few decades, it’s gone, freeing the ice sheet to ride out faster into the ocean.”

Tuesday, August 23, 2016

The following is the third edition of a monthly series chronicling the U.S. 2016 presidential election. It features original material compiled throughout the previous month after an overview of the month’s biggest stories.

In this month’s edition on the campaign trail: two individuals previously interviewed by Wikinews announce their candidacies for the Reform Party presidential nomination; a former Republican Congressman comments on the Republican National Convention; and Wikinews interviews an historic Democratic National Convention speaker.

Tuesday, August 15, 2006

“Jeremy”, an airplane pilot in Nelson, has put his uniform on sale for NZ$1.00 at New Zealand auction site TradeMe. The pilot had lost his job when Origin Pacific Airways fired 230 staff because of financial difficulties and is now trying to “make ends meet this week,” the pilot said. The auction has already reached 31 bids and reached $101 as of 7.30 a.m. August 15.

‘Jeremy’, the pilot, said on the auction page, that he is offering “a rare piece of Kiwi aviation history,”.

“This is an authentic Origin Pacific Jetstream pilot’s uniform lovingly drycleaned for one last time before its unfortunate retirement. It’s travelled many stormy nights and many sunrises and has seen almost 50,000 Kiwis safely to their destinations from Invercargill to the Far North. It has 778,000km on it, yet it looks as crisp today as it did when it was born,” the pilot described on TradeMe.

One bidder had offered $40 if he sold the uniform immediately but that offer was turned down in order to see the auction go until Sunday.

David Collier, Origin Pacific passenger services general manager, said “The uniform was Origin Pacific’s property and the pilot should not be selling it, but I think it’s probably one of those things you’d have to grin at and move on.”

Jay, Waitakere, asked on the auction page if the uniform came with a plane. The pilot replied “No, but if you want to start an airline I know where you can find a great bunch of people.”

The auction is closing on August 20, Sunday.