Wikinews interviews World Wide Web co-inventor Robert Cailliau

Thursday, August 16, 2007

The name Robert Cailliau may not ring a bell to the general public, but his invention is the reason why you are reading this: Dr. Cailliau together with his colleague Sir Tim Berners-Lee invented the World Wide Web, making the internet accessible so it could grow from an academic tool to a mass communication medium. Last January Dr. Cailliau retired from CERN, the European particle physics lab where the WWW emerged.

Wikinews offered the engineer a virtual beer from his native country Belgium, and conducted an e-mail interview with him (which started about three weeks ago) about the history and the future of the web and his life and work.

Wikinews: At the start of this interview, we would like to offer you a fresh pint on a terrace, but since this is an e-mail interview, we will limit ourselves to a virtual beer, which you can enjoy here.

Robert Cailliau: Yes, I myself once (at the 2nd international WWW Conference, Chicago) said that there is no such thing as a virtual beer: people will still want to sit together. Anyway, here we go.

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Wikinews interviews biologist Chris Simon about periodical cicadas

Wednesday, June 12, 2013

In May, periodical cicadas with 17 years life cycle emerged on the East Coast of the USA after underground development as juveniles since 1996. Researchers and scientists worked to map and study the rare wave, and the locals prepared for the noisy event. First recorded in 1666, the Magicicada septendecim species recently emerged in 1979, 1996, this year, with a next wave due in 2030.

This week, Wikinews interviewed Chris Simon, an ecology and evolutionary biologist at University of Connecticut, about the cicadas.

((Wikinews)) What caused your initial interest in periodical cicadas?

Chris Simon: As an undergraduate student, I was interested in the formation of species so when I went to graduate school I looked for a study organism that was likely to be in the process of forming new species. I chose periodical cicadas because they are broken up into reproductively isolated broods (or year classes). Reproductive isolation leads to speciation so I planned to study biochemical differences among the broods.

((WN)) You study the emergence of the periodical cicadas. What do you study? What observations are you making?

CS: We record exactly where each cicada population emerges (using GPS automated mapping and crowd sourcing). We record the presence or absence of each of the three morphologically distinct species groups of periodical cicadas (Decim group, Cassini group, and Decula group). We collect specimens for DNA analysis. We look for cicadas coming up one and four years early and late. We dig up cicada nymphs and monitor their growth rates.

((WN)) What equipment do you use?

CS: Nets, shovels, automated GPS recorders, cameras, laptop computers, automated DNA sequencers.

((WN)) Do you study the periodical cicadas with anyone else? What is their role?

CS: Yes, there are a large number of people studying periodical cicadas in my lab and in other labs. My lab is made up of Research Scientists, Postdoctoral Researchers, a technician, graduate students, and undergraduates. Research Scientist John Cooley is the leader of the GPS mapping project; he invented the automated GPS recorder; he built our crowd-sourcing website, and he is instrumental in public outreach. Postdoctoral research David Marshall also participates in the mapping project and leads the part of the research related to the mapping of stragglers. John and Dave and Technician Kathy Hill all study periodical cicada mating behavior and conduct mating and hybridization experiments. One of my graduate students Beth Wade has participated in the nymph collections and will soon start genetic work involving genome wide association mapping designed to locate genes related to life cycle. My graduate student Russ Meister is studying the genes of the bacterial endosymbionts of cicadas. My current undergraduate honors student Erin Dwyer is also studying the development of Magicicada nymphs and is helping to design a lab exercise for college students around the eastern US to do the same. Many of my past undergraduate students have studied the biochemical genetics and development of periodical cicadas. See the Simon Lab website.
CS: We are collaborating with Teiji Sota at the University Kyoto and Jin Yoshimura at Shizuoka University in Japan. They are studying the phylogeography of Magicicada. We are collaborating with John McCutcheon of the University of Montana who is studying the endosymbiont genomes.
CS: We are also collaborating with ecologists Rick Karban and Louie Yang, both professors at UC Davis who have an interest in cicada population dynamics and nutrient cycling in the ecosystem.

((WN)) You studied the periodical cicadas in 1979 and 1996 too. What changes with time?

CS: I have studied periodical cicadas since I was a student back in 1974. What changes with time is increased human development constantly shrinking the patch size of cicada populations.

((WN)) What are your thoughts on the long life span of the periodical cicadas? Why could it be so? What advantages and what disadvantages does it have?

CS: Most or all cicadas have long life cycles compared to your typical annual insect. Examples have been found of two-year to 9-year cycles in different species. Periodical cicadas evolved an even-longer life cycle and I think that part of this relates to the evolution of their synchronized life cycles and peculiar safety-in-numbers strategy for survival. To become synchronized, periodical cicadas had to evolve an exact length life cycle and all adults would have to appear in the same year. Because the nymphs grow at different rates underground, a longer life cycle and a way of counting years must have evolved so that the individuals that get to the last nymphal (underground juvenile) stage first would wait long enough for all other individuals in the population to become ready to emerge.

((WN)) News reports mention this is ‘Brood II’ of the periodical cicadas. What are the distinctive features of this specific species and what is its full scientific name?

CS: The same species exist in multiple broods. No species is restricted to Brood II. The three species present in Brood II are: Magicicada septendecim, M. cassini, and M. septendecula. These same three species are found in every 17-year brood (except the farthest north which only has M. septendecim).

((WN)) At what depth do the cicadas juveniles live underground?

CS: Most live within the top foot of soil but some have been found deeper. We do not know if they go deeper in winter. We need to do much more digging to understand the nymphs.

((WN)) How do people prepare for the cicada emergence?

CS: Of course various people prepare in different ways. Ideally, everyone prepares by studying information available on the web (especially on our websites Magicicada Central and Magicicada.org).

((WN)) Do cicadas affect transport in the local area?

CS: No, not really. Occasionally individuals can be seeing flying across highways and sometimes they smash into cars.

((WN)) Do cicadas usually stay outside or do they also invade houses too?

CS: They stay outside. One might accidentally fly in through an open window but that would be rare.

((WN)) What do the cicadas eat?

CS: Cicadas suck xylem fluid (the watery fluid coming up from the roots of plants) in deciduous forest trees and herbs. Essential amino acids in the cicada diet are supplied by their bacterial endosymbionts. There are two species of endosymbionts. One makes 8 essential amino acids and one makes two essential amino acids.

((WN)) Do cicadas damage crops or city vegetation? What damage?

CS: Cicadas do not chew leave so they do not damage crops like other insects. They can inflict some damage by their egg laying. Cicadas lay eggs in pencil-sized tree branches. If there are not enough branches available, too many female cicadas may lay eggs in a single branch weakening it and making it susceptible to breakage by wind. This can sometimes cause damage in fruit orchards. If the branches break, the eggs die so this behavior is selected against by natural selection.

((WN)) Thank you.

CS: You’re welcome. I am happy to have this opportunity to communicate with your readers!
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Tips To Follow When Sport Betting Online

Sports betting is a great enhancement to the lives of people watching sports. Not only do you get excited about your favorite team winning, you also have the chance of making profit. Sports betting even enhances satisfaction because of the introduction of sports betting online. With sports betting online, it is so much easier to do betting. One can just go to an online sportsbook and place their bets. Everything is done on the Internet and you do not have to leave the house to do your betting activities. Aside from this, sports betting online is enhanced by the Internet. You can research stats and information about different sports teams with just a few clicks of the mouse. Many sports fans and non-sports fan love sports betting online because it is practical and exciting. We want to help you enjoy sports betting so here are a few tips to follow to assure you of winning money while enjoying the games.

Betting Tip # 1: Always have a budgeted bankroll. Before you decide to wager on anything, it is important that you apply good money management to your sports betting activities. Sit down, get a piece of paper and pen plus a calculator and compute the amount of money you can put aside for sports betting. The same concept applies in budgeting your dinners at restaurants or the money you spend on clothes. The amount of money you should be willing to spend for sports betting online is an amount you can afford to lose. When you have a number, stick with that figure. Apply discipline to your bankroll management and it will make you more money rather than spill money.

Betting Tip # 2: Look around for the best sportsbook. It is important you checkout all the bookmakers and sportsbooks available. Most of the popular bookmakers have online versions so you will not have a hard time looking for them on the web. Sometimes, especially in sports like college basketball, these oddmakers will have different numbers. Choose the bookie with the best odds and numbers. Be careful with the numbers because it can go as low as just three points and that three points can make the difference between a win and a loss.

Betting Tip # 3: Avoid making sports bets when you’re drunk. Your judgment will be impaired and you will regret it in the end. You not only lose money, you also end up with a bad and expensive hangover.

Betting Tip # 4: Research, research and do more research. Know everything there is to know about the particular sport you are betting on. Research about the teams, the issues they face and detailed information such as injuries of key players.

Posted on November 4th, 2021 by  |  No Comments »

Wikinews interviews Jim Hedges, U.S. Prohibition Party presidential candidate

Saturday, January 29, 2011

U.S. Prohibition Party presidential candidate Jim Hedges of Thompson Township, Pennsylvania took some time to answer a few questions about the Prohibition Party and his 2012 presidential campaign.

The Prohibition Party is the third oldest existing political party in the United States, having been established in 1869. It reached its height of popularity during the late 19th century. The party heavily supported the Eighteenth Amendment to the United States Constitution, which banned the sale of alcohol, and resulted in the US period known as Prohibition (1919–33). It was repealed in 1933. The party has declined since this period, but has continued to nominate candidates for the presidential election.

In 2003, the party split into two factions. Preacher Gene Amondson and perennial candidate Earl Dodge were nominated for the presidency by their respective factions. After Dodge’s death in 2007, the party reunified and named Amondson as its sole presidential nominee for 2008. During the election, Amondson was interviewed by Wikinews. He died in 2009, leaving an opening in the party for 2012.

Jim Hedges is a longtime Prohibition activist, who holds the distinction of the first individual of the 21st century (and the first since 1959) to be elected to a political office under the Prohibition Party banner. In 2001, he was elected as the Thompson Township tax assessor, and was re-elected to the post in 2005. He served until his term expired in 2010. Hedges declared his intent to run for the Prohibition Party presidential nomination on February 18, 2010. This marks his first run for the presidency.

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Canada’s Etobicoke—Lakeshore (Ward 5) city council candidates speak

This exclusive interview features first-hand journalism by a Wikinews reporter. See the collaboration page for more details.

Monday, October 30, 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 Etobicoke—Lakeshore (Ward 5). Two candidates responded to Wikinews’ requests for an interview. This ward’s candidates include John Chiappetta, Joseph Mignone, Peter Milczyn (incumbent), Arthur Roszak, and Bojidar Tchernev.

Interviewed are newcomer Joseph Mignone, and incumbent Peter Milczyn. Click on either of their names to read their responses.

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

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Philadelphia breaks 80 year old building lease; moves to evict Scouts

Friday, June 1, 2007

In an unannounced vote yesterday, the Philadelphia City Council in the United States voted 16-1 to endorse the eviction of, and end their lease held in perpetuity with, the local council of the Boy Scouts in Philadelphia. The Scouts must pay market rent or leave the building. The Cradle of Liberty Council has more than 60,000 members in Philadelphia and Delaware and Montgomery Counties.

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Medicine In Elizabethan England

By Phil Forp

During the reign of Henry VIII (1485-1509) in England, the royal confiscation of monastic land s and church properties put a huge crutch on the entire charitable system. Between 1536 and 1544, one would have to search far and wide for medical help, and there was absolutely no help for indigent people in the city of London. In 1569, royal hospitals were finally restored, including Christ’s Hospital for Children, St. Mary’s of Bethlem for mental cases, and general hospitals such as St. Bartholomew’s and St. Thomas’. However, hospitals were not the only options for a sick individual. Queen Elizabeth I’s reign (1558-1603) brought the restoration of general charity, and there were many types of professionals and individuals to turn to for seeking medicals attention. As a result of this broad spectrum of medical choices, a mixture of the theory of Humors, the Doctrine of Signatures, astrology, tradition, chemical science, and magic became the basis for popular medicine in Elizabethan England.

One of the most socially acceptable and encouraged forms of charity was medical charity. It was believed that sick people obviously needed help to have a positive recovery. Another motive for giving medical help was to help the poor make a safe return from sickness back to work, and thus removing the need to further provide monetary help. The city of Norwich often paid large amounts for physicians to treat the poor. It was also often that the city would hire one poor person to nurse and keep another poor, sick person, to kill two birds with one stone. An interesting fact is that it was common for a small sum to be paid initially to a bonesetter, but the bulk of the fee would only be paid when the patient was able to walk again. Thus, it is apparent that the practitioner took full responsibility for the patient during the recovery period. The city of Norwich also paid for shelter during the recovery period for patient. Norwich is the prime example of the great involvement and motivation for treating the poor and the sick in Elizabethan England.

When a merchant in Elizabethan London gets a fever, he first will ask the physician to diagnose him. Then, he will ask his wife if she knows of a certain herb that will lower his fever. If she has nothing in her stillroom, then she contacts an apothecary. The apothecary will then prepare the medicine prescribed by the physician. If finding little relief, the merchant will then go to the local ‘cunning’ woman down the street, who will give him a charm sprinkled with bergamot oil, advise him to eat cool and dry foods, and maybe advise him to consider attaching a leach or two to his skin to relieve his blood Humor, This is an example of the common diagnosis and treatment of a patient.

It is apparent that medicine was distributed by an array of different people. The doctor a patient could see depended on the patient’s class and whether he or she had the money to pay the fee. These professional physicians, who would have received an education at one of the Universities or Colleges for Physicians, were usually only afforded by the very wealthy. Surgeons had a similar reputation to the barbers, whom they associated with and belonged to in the Company of Barber-Surgeons. Barbers were only allowed to pull teeth or let blood by cutting or use of leaches. Usually, patients first visited the apothecary, who was the Elizabethan equivalent for today’s pharmacist. They carried herbs, oils, chemicals, cosmetics, perfumes, and drugs. The Church could be considered a participating medical practitioner for providing attention and comfort to the sick and poor. Poor patients, however, usually first contacted the local ‘wise woman’ or ‘cunning woman.’ Usually, this woman had a good reputation for traditional remedies and treatments. Bonesetters set bones for broken limbs and ribs. Midwives took care of the childbirth department of medicine. There were also herb-gatherers-and-compounders, hernia specialists, cataract couchers, dentists, and many other types other types of specialist. Lastly, there were ordinary Elizabethan housewives, who were expected to have some knowledge of simple herbal and traditional remedies to produce homemade medicines and potions. En masse, a patient who had many options, and picked and chose from different services from many individuals and types of providers.

Medicine in Elizabethan England was ridiculously basic for an era with terrible illnesses, such as the Bubonic plague and typhoid, and an enormous lack of sanitation in large cities with open sewers filled with garbage, infestation of rats, lice, and fleas, and no running water. The cause of illness was almost entirely unknown, and the beliefs were mostly based on teachings by ancient Greeks and astrology. The ignorance is also apparent in the common clothing of physicians, which were often seen as very strange. The clothing consisted of a large, full, dark cloak, boots, gloves, a hat, and a mask shaped like a bird’s beak, which held bergamot oil. They also wore amulets of dried blood and ground-up toads at the waist for preventative purposes. It was also a custom to douse oneself with vinegar and to chew angelica before approaching the patient. These precautionary steps may seem very ridiculous and random. However, the popular belief about medicine formed from six different theories, which happened to make sense at the time.

[youtube]http://www.youtube.com/watch?v=WR8tIjTykbE[/youtube]

The ancient Greek, Galen, formed the first theory. He believed that the body consists of our bodily fluids called ‘Humors’: blood, phlegm, yellow bile, and black bile. Each humor possessed certain characteristics. Blood is hot and wet, Phlegm is cold and wet, Yellow Bile is hot and dry, and Black Bile is cold and dry. A natural balance of these fluids will keep the body in a healthy state. Any imbalance will result in illness. For example, a cold is the result of too much hot and dry phlegm in the body. This can be counteracted by drying and heating, or staying in bed and eating hot soup. For another example, a fever is the result of an excess of blood in the body. A treatment for the fever would be to remove excess blood with leaches, or eat cool and dry foods, like crackers. The characteristics of the four Humors were also considered for treating mental illnesses, as blood is sanguine, phlegm is phlegmatic, yellow bile is choleric, and black bile is melancholic.

The second theory is the Doctrine of Signatures. This theory comes from the Bible, stating that God gave Man lower creatures for Man to use for his benefit. Man uses many creatures for sustenance, and many creatures for labor. Other non-edible creatures on Earth should be used as ingredients in medicines. For example, Lungwort is good for the lungs, and Eyebright will clear the eyesight.

The third theory, astrology, has been signs and planet orbits of a patient’s birthday to determine the severity and duration of an illness. The fourth theory is the traditional approach to medicine. This theory states that illness is a foreign presence in the body; the expropriation of the forging presence is the key to treatment. For example, an exorcism is necessary for mental illness, a King’s touch is a cure for scrofula, tuberculosis in the neck, and toads are a cure for warts.

The fifth theory uses chemical science, in which newly discovered pure substances and non-organic materials were pressed into medical service, such as tobacco and mercury. The sixth theory deals with magic. In days, the dividing line between magic and legitimate medical practice was extremely blurred. Magic seemed perfectly logical and even scientific to an Elizabethan.

The most common cleansing agent used was vinegar, which was applied to most wounds to prevent from infection. The only cure for toothache was having the tooth pulled, which did not include the use of any anesthetics. Bubonic Plague was treated by applying warm butter, onion, and garlic to the bubo. Other various remedies for the plague were tried, including tobacco, arsenic, lily root, and dried toad. Head pains were treated with sweet-smelling herbs such as sage, bay leaf, rose, and lavender. Stomach pains were treated with wormwood, mint, and balm. Lung problems were treated with licorice and comfrey. These are all specific examples of treatments for common complication in the Elizabethan era.

An important benefit of all Elizabethan medicine is the confirmation of the placebo effect. The belief in one’s treatment excites the patient’s optimism and hopes, which is often the most important part of the recovery process. This is probably the most prevalent, underlying secret to Elizabethan medicine, whether the medical practitioners and patients knew it or not. The great variety of specialists, learned physicians, and magicians and all their ideas and beliefs, including the bodily Humors, the Doctrine of Signatures, astrology, tradition, chemical science, and magic, is important reason why everybody did not die in unsanitary, Bubonic Plagued, rat-infested, and garbage-filled Elizabethan England.

Work Citied

Bynum, W F., and Roy Porter. Companion Encyclopedia of the History of Medicine. London: Routledge,1993.

Holmes, Martin, Elizabethan London. London: Praeger, 1969.

Kiple, Kenneth F. The Cambridge World History of Human Disease. New York City: Cambridge UP, 1993

McGrew, Robert E., comp. Encyclopedia of Medical History. McGraw-Hill Book Company, 1985.

Pritchard, R E. Shakespeare’s England: Life in Elizabethan & Jacobean Times.

About the Author: Phil Forp is a contributing editor at

History Research Papers

Source:

isnare.com

Permanent Link:

isnare.com/?aid=273096&ca=Medicines+and+Remedies

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Wikinews Shorts: August 13, 2009

A compilation of brief news reports for Thursday, August 13, 2009.

The French capital Paris has seen a second night of violence by demonstrators, who have blamed police for the death of a motorcyclist on Sunday.

On Sunday night youths in the eastern suburb of Bagnolet, set 29 vehicles alight and threw stones and petrol bombs at police. Monday night was “relatively calm” according to Samira Amrouche, spokeswoman for the regional administration, the authorities having depolyed 40 vans of riot police only 8 vehicles were burnt.

The motorcyclist, a pizza deliveryman, was killed when he fled police attempting to examine his documents, dying when he was struck by a pursuing police vehicle according to the youths,however in the police version his death was a result of him crashing into barriers.

The current violence has echoes of the unrest in 2005, with again dissaffected youths of Arab and black descent venting their anger and frustration.

Sources

  • “Paris suburb youths fight police” — BBC Online, August 11, 2009
  • “Plea for calm after Paris violence” — Press Association, August 11, 2009

The leaders of the North American Free Trade Agreement (NAFTA) met in Guadalajara, Mexico on Sunday and Monday. The leaders of the three countries (Barack Obama of the United States, Felipe Calderón of Mexico, and Stephen Harper of Canada) promised to work together on swine flu, organised crime and green issues.

Despite disputes in a number of areas remaining unresolved, the three leaders succeeded in presenting an amiable Three Amigos image. The three leaders expressed solidarity, and an understanding of each others position.

The unresolved issues include the buy American clauses in the US stimulus package, tit for tat reprisals by the Mexican authorities over Canadian visa restrictions on Mexican travellers, and the US ban on Mexican trucks from crossing the border.

Risking the ire of human rights activists back home President Obama expressed support for President Calderón’s war against drugs saying he had “great confidence” in the Mexican authorities.

Sources

  • An. “Canadian and Mexican leaders fail to reach agreement on visas” — Xinhua News Agency, August 11, 2009
  • An. “North American leaders wrap up summit, joint statement embodies cooperation” — Xinhua News Agency, August 11, 2009
  • Tanya Huntington Hyde. “Ignoring Mexico’s human rights abuses” — The Guardian, August 11, 2009
  • “Border ban angers Mexico truckers” — BBC Online, August 09, 2009

Mexican Federal Police (Policía Federal) have foiled an alleged plot to assasinate the President of Mexico Felipe Calderón. Acting on intelligence gathered over a year the Federal Police arrested five drug cartel members on Sunday and publicly paraded their captives and a number of weapons ,including automatic rifles, on Monday. Speaking during a summit of North American leaders Calderón played down the threats on his life, saying that the cartels are being destroyed by his policies.

Some 11000 have died since President Calderón’s took office in 2006 and made the war on drugs a cornerstone of his administration.

Sources

  • “Drug cartel allegedly plotted to kill Mexican leader” — CNN, August 11, 2009
  • “Mexican police foil drug cartel plot to kill president” —  August 11, 2009
  • Julie Watson. “Mexico: Suspect plotted to kill president” — Associated Press, August 10, 2009

Aung San Suu Kyi has been sentenced by a court in Burma to a further three years of house arrest for violating the terms of her previous sentence. However her sentence was immediately commuted to 18 months on the orders of Burmese head of state Senior-General Than Shwe out of respect for her father General Aung San and out of a desire for “national reconciliation”.

The period of her arrest will prevent Aung San Suu Kyi from participating in the general elections scheduled for 2010. The sentence was immediately condemned by Western leaders, and breaking from their usual silence, the Association of South East Asian Nations (ASEAN) through its current chair Thailand issued a statement expressing disappointment. The ASEAN statement and talk of further European Union and United States sanctions are unlikely to have any impact on Southeast Asian country given the support of India and China.

The Chinese issued a statement calling for the world to respect Burmese sovereignty and laws, and is seen as an indication that China, a veto power will not support any United Nations actions.

John Yettaw whose unauthorised visit led to Aung San Suu Kyi’s prosecution has himself been sentenced to seven years imprisonment, four of which will be for hard labour.

Sources

  • “Asian regrets at Suu Kyi verdict” — BBC Online, August 12,2009
  • Li. “Myanmar gov’t gives reasons to commute Aung San Suu Kyi’s sentence” — Xinhua News Agency, August 12, 2009

Four employees of the Rio Tinto Group have been formally arrested in China on charges of bribery and using improper practises in its negotiations with Chinese companies. The Chinese accuse the men of improperly learning the negotiating position of Chinese companies wishing to buy iron ore, and through this charging 700 billion yuan (US$102.46 billion) more then they would otherwise have been able to

The four were initially held on espionage charges and have been held since early July. The formal charges allows the Chinese authorities to hold the four a further seven months as it prepares its case against them. Their arrests followed the collapse of an attempted by Chinese owned Chinalco to raise its stake in the Anglo-Australian Rio Tinto Group to 18%.

Sources

  • Anne Barrowclough. “Rio Tinto China executives charged with bribery” — The Times, August 12, 2009
  • “Watchdog on secrets: Rio caused “huge loss”” — Xinhua News Agency, August 10, 2009
  • “A souring relationship” — The Economist, August 10, 2009

Michael Jackson will be the star of a film to be released on October 28, some four months after his death. The film will be primarily cut from footage of Jackson rehearsing for the series of concerts that would have taken place at the O2 in London, but will also feature interviews with Jackson’s family and friends.

The film becomes possible after AEG Live, the promoter of the O2 concerts, reached an US$60 million agreement with Columbia Pictures for over 100 hours of footage of Jackson preparing for his swan song.

“He was the architect of ‘This is it‘, and we were his builders…” said Kenny Ortega, Jackson’s collaborator on the project “…it was clear that he was on his way to another theatrical triumph.”

Sources

  • Rosie Swash. “Michael Jackson film gets October release date” — The Guardian, August 11, 2009
  • “Michael Jackson rehearsal film set for worldwide cinematic release” — New Musical Express, August 11, 2009

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Dock worker killed by snapped cable

Wednesday, October 5, 2005

A dock worker on the Panamanian cargo vessel Ma Altair was killed when a cable snapped and threw him through the air. Witnesses say that the 54 year old worker was struck on his right side by a 1-1/2 inch cable being used to unload steel products.

Authorities were notified at 8:10 am CDT (1310 UTC). The victim was pronounced dead at the scene.

Snapped cables are a significant occupational hazard, capable of maiming and dismembering people nearby. Equipment struck by cables snapping under load is often destroyed.

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Saturn moon Enceladus may have salty ocean

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.

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