Thursday, April 28, 2016

Hertha Marks Ayrton: 5 facts about the British engineer and inventor.

Hertha Marks Ayrton was a British mathematician, engineer, physicist and inventor who was awarded the Hughes Medal in 1906 by the Royal Society for her work on electric arcs and ripples in sand and water.

Born in Portsea, Hampshire in 1854, she studied at Girton College, Cambridge, and registered 26 patents for mathematical divders, arc lamps and electrodes between 1884 and her death in 1923.

As Google marks what would have been her 162nd birthday with a Doodle on its homepage, here are five facts about the inventor and committed member of the suffrage movement.

1. She was self-sufficient by the age of 16

After her father died in 1861 leaving her mother with seven children to care for and another on the way, Ayrton was tasked with helping to raise her siblings. Her mother, however, was determined this would not stand in the way of her daughter's education. She was taken to London by an aunt who ran a school. By the age of 16 she was working as a governess, but still had a desire to advance her education.

2. She was a keen supporter of women's suffrage

At school she gained a reputation as a intellectual and an activist, going on hunger-strike when accused of something she had not done. This fired a passion for politics and she took part in marches and opened her home to women released from jail after being on hunger-strike, including suffragette leader, Emily Pankhurst.

3. She was friends with the novelist George Eliot

Mary Ann Evans (better known by her pen name George Eliot) was a keen supporter of education for women and she took an interest in Ayrton's efforts to fund a place at Girton College. At the time she was working on Daniel Deronda and there were many similarities between the character Mirah, a dark haired Jew with a distinctive voice, and Ayrton.

4. She was the first female member of the Institute of Electrical Engineers

After reading a paper to the IEE on her work on the electric arc in 1899, Ayrton was elected to full membership two days later. Unlike the Royal Society, the IEE focused on her scientific ability rather than her gender.

5. She used her theories to help the war effort

At the outbreak of First World War, Ayrton put her knowledge of oscillations in water to the movement of air to good use as part of Britain's war effort - once she had convinced the military to consider her idea. After battling to gain acceptance for her Flapper Fan invention, 100,000 were used on the Western Front to clear trenches of poisonous gas. She died from blood poisoning caused by an insect bite in 1923.

Source: independent

Tuesday, April 26, 2016

Trump routs rivals in Northeast; Clinton carries four states


In a front-runner's rout, Republican Donald Trump roared to victory Tuesday in five contests across the Northeast and confidently declared himself the GOP's "presumptive nominee." Hillary Clinton was dominant in four Democratic races and now is 90 percent of the way to the number needed to claim her own nomination.
Trump's and Clinton's wins propelled them ever closer to a general election showdown. Still, Sanders and Republicans Ted Cruz and John Kasich, vowed to keep running, even as opportunities to topple the leaders dwindle.
Trump still must negotiate a narrow path to keep from falling short of the delegates needed to claim the nomination before the Republican National Convention in July. Cruz and Kasich are working toward that result, which would leave Trump open to a floor fight in which delegates could turn to someone else.
Trump was having none of that. "It's over. As far as I'm concerned it's over," he declared at his victory rally in the lobby of Trump Tower in New York.
With Clinton's four victories — she ceded only Connecticut to Vermont Sen. Bernie Sanders — she now has 90 percent of the delegates she needs to become the first woman nominated by a major party. Clinton kept her focus firmly on the general election as she spoke to supporters Tuesday night, urging Sanders' loyal supporters to help her unify the Democratic Party and reaching out to GOP voters who may be unhappy with their party's options.
"If you are a Democrat, an independent or a thoughtful Republican, you know that their approach is not going to build an America where we increase opportunity or decrease inequality," Clinton said of the GOP candidates. She spoke in Philadelphia, where Democrats will gather in July for their nominating convention.
Sanders, in an interview with The Associated Press, conceded that he has a "very narrow path and we're going to have to win some big victories."
Trump's victories in Maryland, Pennsylvania, Connecticut, Delaware and Rhode Island padded his delegate totals, yet the Republican contest remains chaotic. The businessman is the only candidate left in the three-person race who could possibly clinch the nomination through the regular voting process, yet he could still fall short of the 1,237 delegates he needs.
Cruz and Kasich are desperately trying to keep Trump from that magic number and push the race to a convention fight. The Texas senator and Ohio governor even took the rare step of announcing plans to coordinate in upcoming contests to try to minimize Trump's delegate totals.
That effort did little to stop Trump from a big showing in the Northeast, where he picked up at least 105 of the 118 delegates up for grabs. Despite his solid win in Pennsylvania, the state's primary system means 54 of the delegates elected by voters will be free agents at the GOP convention, able to vote for the candidate of their choice.
Cruz spent Tuesday in Indiana, which votes next week. Indiana is one of Cruz's last best chances to slow Trump, and Kasich's campaign is pulling out of the state to give him a better opportunity to do so.
"Tonight this campaign moves back to more favorable terrain," Cruz said during an evening rally in Knightstown, Indiana. His event was held at the "Hoosier gym," where some scenes were filmed for the 1986 movie, "Hoosiers," about a small town Indiana basketball team that wins the state championship.
Trump has railed against his rivals' coordination, panning it as a "faulty deal" and has also cast efforts to push the nomination fight to the convention as evidence of a rigged process that favors political insiders.
Yet there's no doubt the GOP is deeply divided by his candidacy. In Pennsylvania, exit polls showed nearly 4 in 10 GOP voters said they would be excited by Trump becoming president, but the prospect of the real estate mogul in the White House scared a quarter of those who cast ballots in the state's Republican primary.
In another potential general election warning sign for Republicans, 6 in 10 GOP voters in Pennsylvania said the Republican campaign has divided the party — a sharp contrast to the 7 in 10 Democratic voters in the state who said the race between Clinton and Sanders has energized their party.
The exit polls were conducted by Edison Research for The Associated Press and television networks.
Democrats award delegates proportionally, which allowed Clinton to maintain her lead over Sanders even as he rattled off a string of wins in recent contests. According to the AP count, Clinton has 2,089 delegates while Sanders has 1,258.
That count includes delegates won in primaries and caucuses, as well as superdelegates — party insiders who can back the candidate of their choice, regardless of how their state votes.
Sanders has vowed to stay in the race until voting wraps up in June. He continues to raise millions of dollars and attract big crowds, including Tuesday night in West Virginia, where he urged his supporters to recognize that they are "powerful people if you choose to exercise that power."
While Clinton's campaign expects Sanders to stay in the race, her advisers are eager for the Vermont senator to tone down his attacks on the former secretary of state. She's been reminding voters of the 2008 Democratic primary, when she endorsed Barack Obama after a tough campaign and urged her supporters to rally around her former rival.
According to exit polls, less than a fifth of Democratic voters said they would not support Clinton if she gets the nomination. The exit polls were conducted in Connecticut, Pennsylvania and Maryland.




Source: AP

Friday, April 22, 2016

24 dead in Mexico petrochemical plant blast, 8 still missing


The death toll from an explosion that ripped through a petrochemical plant on Mexico's southern Gulf coast is now 24, state oil company Petroleos Mexicanos reported.
Pemex raised the toll late Thursday from the 13 fatalities previously known and said eight workers remained missing. It also said 19 people remained hospitalized, with 13 of them in serious condition.
In a statement, the company said 12 of the bodies had been identified and eight of them delivered to family members.
Earlier in the day, President Enrique Pena Nieto toured the facility in the industrial port city of Coatzacoalcos and met with relatives desperate for word on the fate of loved ones still unaccounted for.
"I understand the anxiety, the worry, the anguish you are going through," Pena Nieto said, assuring them that both Pemex and the Mexichem company, which co-operated the plant, would fulfill their responsibilities and compensate those hurt by the accident.
About 30 families gathered at a plant entrance road, where a sharp chemical smell still hung in the air about 2 kilometers (a mile) from where the explosion occurred Wednesday afternoon. Many wore facemasks to ward off the pungent odor.
Shoving broke out as people unsuccessfully tried to force their way into the installation. Some shouted at marines and soldiers who were called in to guard the facility, and they threw rocks at a white government SUV when it arrived at the scene.
Rosa Villalobos traveled about four hours by bus from the city of Veracruz to scour Coatzacoalcos hospitals looking for her son, Luis Alfonso Ruiz Villalobos, a 25-year-old worker at the plant. When she couldn't find him she showed up at the plant entrance.
"What I want is for justice to be done in my son's case, for there to be no impunity," Villalobos said. "I'm going to stay here. Even though I have no money, even though I have nothing to eat, I'm staying put."
Some volunteers brought food and drink to the families. After a while authorities began taking people inside in small groups to see a list of those confirmed dead. Some left crying after seeing their loved ones' names.
Pemex said Thursday night that it was prioritizing the safety of those inspecting the plant and teams were still gradually gaining access to more parts of the site.
The blast forced evacuations of nearby areas as it sent a toxin-filled cloud billowing into the air and injuring more than 100 workers.
Jose Antonio Gonzalez Anaya, Pemex's director, told Radio Formula that the explosion was caused by a leak of an as-yet unknown origin.
Antonio Mariche, who accompanied the Villalobos family in search of Luis Alfonso, vowed that the families would demand a full account of what happened.
"To the president, to the state governor, to the head of Pemex, we will not allow any more cover-ups like have happened with previous accidents," Mariche said. "They have covered up the numbers (in the past); there have been people who disappeared and regrettably never appeared. ... We will go to the last consequences to make sure this doesn't keep happening."
The Clorados 3 plant of Petroquimica Mexicana de Vinilo, where the explosion happened, produces the hazardous industrial chemical vinyl chloride.
In early February, a fire killed a worker at the same facility.



Source: AP

Thursday, April 21, 2016

Three dead, dozens injured in blast at chemical plant in Mexico

A massive explosion rocked a major petrochemical facility of Mexican national oil company Pemex in the Gulf state of Veracruz on Wednesday, killing at least three people, injuring dozens more, and pumping a cloud of noxious chemicals into the sky.
Luis Felipe Puente, head of federal emergency services, told Reuters that three people had died in the blast. The governor of Veracruz state, Javier Duarte, later said 105 were hospitalized, including 58 Pemex workers, according to his official Twitter account.
Pemex said the explosion, which sent a huge, dark plume of smoke billowing upwards, occurred just after 3 p.m. (2000 GMT) at the facility's chlorinate 3 plant near the port of Coatzacoalcos, one of the company's top oil export hubs.
Local emergency officials said hundreds of people had been evacuated from the site. Television footage showed an initial burst of flames followed by a tower of thick smoke. A company official said local oil exports were unaffected.
What caused the blast was unclear, but Pemex warned local residents to keep away from the site due to what it described as a dissipating cloud of toxic fumes. TV footage showed rainclouds gathering above the plant as evening fell.
Pemex Chief Executive Jose Antonio Gonzalez was traveling to Coatzacoalcos late on Wednesday to oversee the response.
Petroquimica Mexicana de Vinilo, or PMV, a vinyl petrochemical plant that is a joint venture between Pemex's petrochemical unit and Mexican plastic pipe maker Mexichem was the facility hit by the blast.
Operated by Mexichem, the plant lies within Pemex's larger Pajaritos petrochemical complex. Mexichem said in a statement the explosion occurred in an ethylene unit at the plant. The company could not be immediately reached for further comment.
In February, a fire killed a worker at the PMV plant, which makes vinyl chloride monomer, also known as chloroethene, an industrial chemical used to produce plastic piping.
The incident occurred just weeks after three workers were killed and seven injured when a fire broke out on a Pemex oil-processing platform in the Gulf of Mexico.
It also came as Pemex implements deep cost cuts to cope with the rout in oil prices, and seeks to stem a slide in output. Mexico is in the midst of a historic push to lure private investors to revive its oil industry.
Pemex, which enjoyed a decades-long monopoly over Mexico's oil and gas industry until an energy reform opened up the sector in 2014, has experienced a series of high-profile accidents.
In 2013, at least 37 people were killed by a blast at its Mexico City headquarters, and 26 people died in a fire at a Pemex natural gas facility in northern Mexico in September 2012.
A 2015 fire at its Abkatun Permanente platform in the oil-rich Bay of Campeche affected oil output and cost the company up to $780 million.
Pemex said last year it had reduced its annual accident rate in 2014 by more than 33 percent. But a Reuters investigation found that Pemex was reducing its accident rate by including hours worked by office staff in its calculations.



Source: Reuters

Wednesday, April 20, 2016

Trump, Clinton win big in NY, push closer to nomination


Front-runners Donald Trump and Hillary Clinton swept to resounding victories in Tuesday's New York primary, with Trump bouncing back convincingly from a difficult stretch in his Republican campaign and Clinton pushing tantalizingly close to locking up the Democratic nomination.
"The race for the nomination is in the home stretch, and victory is in sight," Clinton declared to cheering supporters.
Trump captured more than 50 percent of the vote in New York and was headed toward a big delegate haul in his home state, a commanding showing that keeps him on a path to the GOP nomination if he continues to win. He claimed at least 84 of the 95 delegates at stake Tuesday, with Ohio Gov. John Kasich winning at least two and Texas Sen. Ted Cruz in danger of getting shut out.
Track the Republican delegate count
Track the Democratic delegate count
A confident Trump insisted it was impossible for his rivals to catch him. Indeed, Cruz's poor showing in New York left him without any mathematical chance of clinching the nomination before the Republican convention in July, though Trump could still end up short of the needed 1,237 needed to seal victory before the gathering.
"We don't have much of a race anymore," Trump said during a victory rally in the lobby of the Manhattan tower bearing his name. He peppered his brash remarks with more references to the economy and other policy proposals than normal, reflecting the influence of a new team of advisers seeking to professionalize his campaign.
Clinton's triumph padded her delegate lead over rival Bernie Sanders and put her 80 percent of the way to clinching the Democratic nomination that eluded her eight years ago. In a shift toward the general election, she made a direct appeal to Sanders' loyal supporters, telling them she believes "there is more that unites us than divides us."
Exit polls suggested Democrats were ready to rally around whoever the party nominates. Nearly 7 in 10 Sanders supporters in New York said that they would definitely or probably vote for Clinton if she is the party's pick.
Sanders energized young people and liberals in New York, as he has across the country, but it wasn't enough to pull off the upset victory he desperately needed to change the trajectory of the Democratic race. Still, the Vermont senator vowed to keep competing.
"We've got a shot to victory," Sanders said in an interview with The Associated Press. However, his senior adviser Tad Devine said later that the campaign planned to "sit back and assess where we are" after a string of contests next week.
Of the 247 Democratic delegates at stake in New York, Clinton picked up at least 129 while Sanders gained at least 98.
The fight for New York's delegate haul consumed the presidential contenders for two weeks, an eternity in the fast-moving White House race. Candidates blanketed every corner of New York, bidding for votes from Manhattan and the surrounding boroughs to the working class cities and rural enclaves that dot the rest of the state.
The nominating contests will stay centered in the Northeast in the coming days, with Connecticut, Delaware, Maryland and Pennsylvania all holding contests next week. Sanders spent Tuesday in Pennsylvania, as did Republican Sen. Ted Cruz, Trump's closest rival.
Cruz panned Trump's win in New York as little more than "a politician winning his home state," then implored Republicans to unite around his candidacy.
"We must unite the Republican Party because doing so is the first step in uniting all Americans," Cruz said in formal remarks.
Trump needed a strong showing in New York to keep alive his chances of sewing up the GOP nomination before the party's July convention — and to quiet critics who say the long primary season has exposed big deficiencies in his campaign effort.
Having spent months relying on a slim staff, Trump has started hiring more seasoned campaign veterans. He's acknowledged that bringing new people into his orbit may cause some strife, but says the moves were necessary at this stage of the race.
Cruz is trying to stay close enough in the delegate count to push the GOP race to a contested convention. His campaign feels confident that it's mastered the complicated process of lining up individual delegates who could shift their support to the Texas senator after a first round of convention balloting.
Kasich, the only other Republican left in the race, bested Cruz on Tuesday and is refusing to end his campaign despite winning only his home state.
Trump's political strength, though he boasts of drawing new members to the party, has left some Republicans concerned that his nomination could splinter the GOP. Among Republican voters in New York, nearly 6 in 10 said the nominating contest is dividing the party, according to exit polls.
Still, about 7 in 10 New York Republicans said the candidate with the most votes in primary contests should be the Republican presidential nominee
The surveys were conducted by Edison Research for The Associated Press and television networks.
Trump now leads the GOP race with 804 delegates, ahead of Cruz with 559 and Kasich with 144. Securing the GOP nomination requires 1,237.
Among Democrats, Clinton now has 1,887 delegates to Sanders' 1,174. Those totals include both pledged delegates from primaries and caucuses and superdelegates, the party insiders who can back the candidate of their choice regardless of how their state votes. It takes 2,383 to win the Democratic nomination.



Source: AP

Tuesday, April 19, 2016

North Korea could be preparing for fifth nuclear test, South Korea’s Park warnsa


North Korea appears to be preparing to conduct another nuclear test, South Korean President Park Geun-hye said Monday, citing signs of increased movement near the North’s nuclear test site.
With a much-hyped congress of the communist Workers’ Party to be held early next month, Kim Jong Un appears to be trying to burnish his credentials, and analysts say a fifth nuclear test would be a sure way to do that.
“Recently, signs of preparations for a fifth nuclear test have been detected,” Park said during a meeting with her aides Monday. “We are in a situation in which we cannot predict what provocations North Korea might conduct to break away from isolation and to consolidate the regime.”
This came after the South Korean Defense Ministry said that North Korea’s next underground nuclear test may be of a miniaturized warhead, rather than of the standard atomic devices it is thought to have detonated ­previously.
“Given the latest developments, North Korea could carry out an underground nuclear warhead test, and we are keeping close tabs on it,” Moon Sang-gyun, a Defense Ministry spokesman, told reporters in Seoul on Monday.
The North’s official Korean Central News Agency reported last month that Kim ordered “a nuclear warhead explosion test and a test-fire of several kinds of ballistic rockets able to carry nuclear warheads” to be carried out “in a short time.”
North Korea claims that it has mastered the technology to make nuclear weapons small and light enough to fit on a missile, but there has been no proof. But an increasing number of military top brass and private-sector analysts think that North Korea either will have made or will be on the brink of making such a technological advance soon.
South Korean officials warned Sunday that they had detected a noticeable increase in vehicles and people moving about the North’s Punggye-ri nuclear test site, particularly near its north portal tunnel.
Analysts at 38 North, a website devoted to watching and analyzing North Korea, said that they also saw, in satellite imagery, increased movement around the north portal but that there was little evidence that Pyongyang was planning an imminent nuclear test.
“Nevertheless, that possibility cannot be entirely ruled out since the North may be able to conduct a nuclear test on short notice with few indications that it intends to do so,” Jack Liu, a military analyst, wrote in a note on the site.
A fifth nuclear test would create another conundrum for the international community. Kim’s regime has proved impervious to coordinated efforts to change his calculus when it comes to the country’s nuclear program.
Last month, the U.N. Security Council passed the toughest sanctions yet against North Korea as punishment for its January nuclear test and a long-range rocket launch in February.
Yet Kim has remained defiant, issuing an almost daily barrage of threats and continuing to launch rockets and short-range missiles. An attempt to launch a previously untested intermediate-range ballistic missile last week was deemed to have failed.
At a forum in Seoul, Lim Sung-nam, South Korea’s vice foreign minister, said that more pressure and punishment against North Korea is needed.
“We can no longer afford to be pushed around by North Korea’s deceit and intimidation,” Lim said. “The leadership in Pyongyang must be pressed much harder until it changes its fundamental calculation regarding the value of its nuclear arsenal and delivery capabilities.”
In addition to supporting the tough U.N. resolutions, Park’s government has brought in unprecedented bilateral sanctions against North Korea, closing an inter-Korean industrial park and cutting off all humanitarian aid except to babies and pregnant women.



Source: wp

Monday, April 18, 2016

Quake kills 272 along devastated Ecuador coast

The death toll from Ecuador's biggest earthquake in decades soared to 272 on Sunday as survivors cobbled together makeshift coffins to bury loved ones, lined up for water and sought shelter beside the rubble of their shattered homes.
The 7.8 magnitude quake struck off the Pacific coast on Saturday and was felt around the Andean nation of 16 million people, causing panic as far away as the highland capital Quito and destroying buildings, bridges and roads.
"Ecuador has been hit tremendously hard... This is the greatest tragedy in the last 67 years," said a shaken President Rafael Correa, who rushed back to Ecuador from a visit to Italy.
"There are signs of life in much of the rubble and that is the priority," Correa said in a televised address to the nation.
He confirmed 272 deaths and 2,068 injured and said he feared those figures would increase.
Coastal areas nearest the epicenter were hit hardest, especially Pedernales, a rustic tourist spot with beaches and palm trees now laden with debris from its pastel-colored houses.
Dazed residents recounted a violent shake, followed by a sudden collapse of buildings that trapped people in wreckage.
"You could hear people screaming from the rubble," Agustin Robles said as he waited in a line of 40 people for water outside a stadium in Pedernales. "There was a pharmacy where people were stuck and we couldn't do anything."
Authorities said there were more than 160 aftershocks, mainly in the Pedernales area. A state of emergency was declared in six provinces.
The quake has piled pain on the economy of OPEC's smallest member, already reeling from low oil prices, with economic growth this year projected at near-zero.
RUBBLE, RAIN, PRISON BREAK
As darkness set in and rain began to fall, survivors bundled up to spend the night next to their destroyed homes. Many had earlier queued up for food, water and blankets outside the blue-and-white stadium.
Inside the stadium, tents housed the dead and medical teams treated hundreds of survivors. About 91 people died in Pedernales and some 60 percent of houses were destroyed, according to Police Chief General Milton Zarate.
"We heard the warning so luckily we were in the street because the entire house collapsed. We don't have anything," said Ana Farias, 23, the mother of 16-month-old twins, as she collected water, food and blankets from rescuers.
"We're going to have to sleep outside today."
Other survivors hammered together shelters in empty lots. Police patrolled the dark town, where power remained off, while some rescuers plowed on.
Locals used a small tractor to remove rubble and also searched with their hands for trapped people. Women cried after a corpse was pulled out.
In Portoviejo, around 180 kilometers (112 miles) south of Pedernales, authorities said some 130 inmates escaped from the El Rodeo prison after its walls collapsed. More than 35 have been recaptured.

In Ecuador's largest city, Guayaquil, rubble lay in the streets and a bridge fell on top of a car
"It was horrible. It was as if it was going to collapse like cardboard," said Galo Valle, 56, who was guarding a building in the city where windows fell out and parts of walls broke.
"I prayed and fell to my feet to ask God to protect me."
About 13,500 security force personnel were mobilized to keep order around Ecuador, and $600 million in credit from multilateral lenders was immediately activated for the emergency, the government said.
REFINERY SHUT, GALAPAGOS UNSCATHED
It has been decades since the government dealt with an earthquake of this magnitude. In a 1979 disaster, 600 people were killed and 20,000 injured, according to the U.S. Geological Survey.
According to the country's Geophysics Institute, 230 aftershocks have been registered after the subduction, an event in which one tectonic plate goes under another.(http://goo.gl/smIFMb)
Venezuela, Chile and Mexico were sending personnel and supplies, the left-leaning Correa government said. The Ecuadorean Red Cross mobilized more than 800 volunteers and staff and medical charity Medecins Sans Frontieres said it was sending a team from Colombia.
Canadian Prime Minister Justin Trudeau said on Twitter that two Canadians were among the dead and that the "scope of the devastation in Ecuador is shocking."
The U.S. State Department said in an email that it was working to confirm reports of Americans injured in the quake, although it had no reports of any U.S. citizens killed.
U.S. Secretary of State John Kerry offered assistance.
Although tsunami warnings were lifted, coastal residents were still urged to seek higher ground in case tides rise.
The government said oil production was not affected but closed its main refinery of Esmeraldas, located near the epicenter, as a precaution. It was likely to restart soon.
Residents on the Galapagos islands far off Ecuador's coast, home to numerous rare species, said they had not been affected by the quake.
The Ecuadorean quake followed two large and deadly quakes that struck Japan since Thursday. Both countries are located on the seismically active "Ring of Fire" that circles the Pacific, but according to the U.S. Geological Survey large quakes separated by such distances would probably not be related.
(Additional reporting by Alexandra Valencia and Cristina Munoz in Quito, Javier Andres Rojas in Pedernales, Yuri Garcia in Guayaquil, Guillermo Granja in Manta, Girish Gupta in Bogota; Writing by Andrew Cawthorne and Alexandra Ulmer; Editing by Bill Trott and Mary Milliken)



Source: Reuters

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