2016年12月4日 星期日

火星探險

NASA'S MARS ROVER CURIOSITY IS BACK IN ACTION FOR THE FIRST TIME AFTER SUFFERING A GLITCH LATE LAST MONTH.

    The 1-ton Curiosity rover transferred powdered rock sample from its robotic arm to an analytical instrument on its body on Wednesday (March 11), and then drove about 33 feet (10 meters) toward the southwest on Thursday (March 12), NASA officials said.
Curiosity had been stationary since Feb. 27, when it experienced a short circuit while attempting to transfer the sample, which the rover had collected from a rock dubbed Telegraph Peak.
"That precious Telegraph Peak sample had been sitting in the arm, so tantalizingly close, for two weeks. We are really excited to get it delivered for analysis," Curiosity Project Scientist Ashwin Vasavada, of NASA's Jet Propulsion Laboratory in Pasadena, California, said in a statement.
Engineers have spent much of the past two weeks trying to figure out exactly what caused the short circuit. Testing suggests that it originated in the percussive mechanism for Curiosity's arm-mounted drill (which hammers as well as rotates to bore into rock).
The rover team will continue their analyses to determine how to proceed with future drilling work, NASA officials said.
Curiosity has performed six sample-collecting drilling operations since landing on Mars in August 2012. Analysis of some of these samples has helped rover scientists determine that the Red Planet could have supported microbial life in the ancient past.
Curiosity is moving away from an outcrop at the base of the towering Mount Sharp called Pahrump Hills, which the six-wheeled robot has been studying since last September. Curiosity will head to higher ground on Mount Sharp, via a valley called Artist's Drive.
"Road to Wellville: In good health, doing science & heading higher on Mt Sharp," NASA officials said Thursday via Curiosity's official Twitter account, @MarsCuriosity.
Mount Sharp has been Curiosity's prime science destination since before its November 2011 launch. The rover's handlers want Curiosity to climb up through the mountain's lower levels, reading a history of Mars' changing environmental conditions as it goes.
Curiosity transferred some Telegraph Peak powder to its Chemisty and Mineralogy instrument, or CheMin, on Wednesday. The rover will also deliver some of the sample to its Sample Analysis at Mars (SAM) instrument soon, NASA officials said.

http://www.space.com/28823-mars-rover-curiosity-short-circuit-drive.html

WHAT- Back in action for the first time
WHEN- after suffering a glitch late last month

 transferred -轉移
analyse-分析
microbial -微生物的
instrument-工具.儀器
circuit -巡迴

VR


What is Virtual Reality?

The definition of virtual reality comes, naturally, from the definitions for both ‘virtual’ and ‘reality’. The definition of ‘virtual’ is near and reality is what we experience as human beings. So the term ‘virtual reality’ basically means ‘near-reality’. This could, of course, mean anything but it usually refers to a specific type of reality emulation.
We know the world through our senses and perception systems. In school we all learned that we have five senses: taste, touch, smell, sight and hearing. These are however only our most obvious sense organs. The truth is that humans have many more senses than this, such as a sense of balance for example. These other sensory inputs, plus some special processing of sensory information by our brains ensures that we have a rich flow of information from the environment to our minds.
Everything that we know about our reality comes by way of our senses. In other words, our entire experience of reality is simply a combination of sensory information and our brains sense-making mechanisms for that information. It stands to reason then, that if you can present your senses with made-up information, your perception of reality would also change in response to it. You would be presented with a version of reality that isn’t really there, but from your perspective it would be perceived as real. Something we would refer to as a virtual reality.
So, in summary, virtual reality entails presenting our senses with a computer generated virtual environment that we can explore in some fashion.

In technical terms…

Answering “what is virtual reality” in technical terms is straight-forward. Virtual reality is the term used to describe a three-dimensional, computer generated environment which can be explored and interacted with by a person. That person becomes part of this virtual world or is immersed within this environment and whilst there, is able to manipulate objects or perform a series of actions.

How is virtual reality achieved?

Although we talk about a few historical early forms of virtual reality elsewhere on the site, today virtual reality is usually implemented using computer technology. There are a range of systems that are used for this purpose, such as headsets, omni-directional treadmills and special gloves. These are used to actually stimulate our senses together in order to create the illusion of reality.
This is more difficult than it sounds, since our senses and brains are evolved to provide us with a finely synchronized and mediated experience. If anything is even a little off we can usually tell. This is where you’ll hear terms such asimmersiveness  and realism enter the conversation. These issues that divide convincing or enjoyable virtual reality experiences from jarring or unpleasant ones are partly technical and partly conceptual. Virtual reality technology needs to take our physiology into account. For example, the human visual field does not look like a video frame. We have (more or less) 180 degrees of vision and although you are not alwconsciously aware of your peripheral vision, if it were gone you’d notice. Similarly when what your eyes and the vestibular system in your ears tell you are in conflict it can cause motion sickness. Which is what happens to some people on boats or when they read while in a car.
If an implementation of virtual reality manages to get the combination of hardware, software and sensory synchronicity just right it achieves something known as a sense of presence. Where the subject really feels like they are present in that environment.
http://www.vrs.org.uk/virtual-reality/what-is-virtual-reality.html

What -virtual reality
How- from the definitions for both ‘virtual’ and ‘reality’


dimensional -空間的
manipulate-操作
synchroniaed-同步的
mediated-調停
immersed-侵入的


2016年11月13日 星期日

AlphaGo

Google's DeepMind artificial intelligence has secured its fourth win over a master player, in the final of a five match challenge.
Lee Se-dol, one of the world's top Go players, won just one of the matches against the AlphaGo program, missing out on the $1m prize up for grabs.
Demis Hassabis, founder of DeepMind, said the match had been the "most exciting and stressful" for his team.
Lee Se-dol said he felt "regrettable" about the result of the contest.
In Go, players take turn placing stones on a 19-by-19 grid, competing to take control of the most territory.
The game is considered to be much more challenging for computers than chess.
At a press conference held after the final match, Mr Lee said he did not necessarily think AlphaGo was superior to humans.
But he said he had more studying to do, and admitted the matches had challenged some of his ideas about the game Go.
In some countries the people watch football on big screens in public squares, but in South Korea it's been the mighty challenge of machine against humanity.
And the victory of the computer has led to some introspection.
One South Korean newspaper complained that the contest was "lopsided" with the single Korean pitted against the corporate might of Google and its "army of super-smart people armed with unfathomable computing power".
In a spirit of magnanimity, however, the Korea Baduk Association - which governs the game of Go - has decided to give an honorary ninth-dan ranking to AlphaGo.
The 4-1 mechanical victory has also made some Go players doubt themselves.
The European champion who lost last year to AlphaGo said it had really knocked his self-confidence, even as it enabled him to climb up the world rankings.
Go was invented about 2,500 years or so ago in China. Until now, it has always had a human best player. Not any more.

The five match challenge began in Seoul on 9 March, where AlphaGo scored its first victory.
After losing the second match, Lee Se-dol said he was "speechless" adding that the AlphaGo machine played a "nearly perfect game".
In the third game commentators said that Lee Se-dol had brought his "top game" but that AlphaGo had won "in great style".
DeepMind's winning streak meant it won the $1m (£702,000) prize on offer. Google said the money would be donated to Unicef, Stem (science, technology, engineering, and maths) charities and Go organisations.
Mr Hassabis said: "We have been lucky to witness the incredible culture and excitement surrounding Go.
"Despite being one of the oldest games in existence, Go this week captured the public's attention across Asia and the world."

Expertise

The AlphaGo system was developed by British computer company DeepMind which was bought by Google in 2014.
It has built up its expertise by studying older games and teasing out patterns of play.
Lee Se-dol did win the fourth match against AlphaGo, after which he said: "I've never been congratulated so much because I've won one game."
Despite Mr Lee's overall defeat, rival players have still expressed confidence that they could beat the AI.
Ahead of the final, China's top ranked Go master Ke Jie said he believed he could beat AlphaGo.
He told China Central Television: "In terms of probability, I have a chance to win, but the probability is not as high as I thought before. I think it is 60 per cent in favour of me."

Analysis by Dr Noel Sharkey, AI expert
To beat one of the world's top players, Deep Mind used a mixture of clever strategies to make the search much smaller.
Does this mean AI is now smarter than us and will kill us mere humans? Certainly not.
AlphaGo doesn't care if it wins or loses. It doesn't even care if it plays and it certainly couldn't make you a cup of tea after the game.
Does it mean that AI will soon take your job? Possibly you should be more worried about that.
http://www.bbc.com/news/technology-35810133
who-Google's DeepMind artificial intelligence
what- win over a master player
how- players take turn placing stones on a 19-by-19 grid

WORD:
lopsided  片面
2 admitted  錄取
3 territory 領土
humanity人性
commentator 評論員

refugee, Aylan Kurdi, Hungarian reporter, Hudea, surrender, camera, gun

The three-year-old Syrian boy whose death galvanized public opinion and put pressure on European governments to tackle the continent’s refugee crisis has been buried in the town of Kobani alongside his mother and brother.

The body of Aylan Kurdi, who drowned along with his mother Rehan and his five-year-old brother Ghalib, washed up on a beach not far from the Turkish resort town of Bodrum on Wednesday. Photographs showed him lying face down in the surf, wearing a bright-red T-shirt and shorts.

Aylan’s father, Abdullah, who survived the capsizing that killed his family, wept as the bodies were buried in the predominantly Kurdish Syrian border town. Speaking at the crossing with Turkey, he said he hoped the death of his family would encourage Arab states to help Syrian refugees.

“I want from Arab governments, not European countries, to see my children, and because of them to help people,” he said in footage posted online by a local radio station.

The bodies were flown to a town near Turkey’s border with Syria, from where police escorted funeral vehicles to Suruç and across the border into Kobani.

Turkish MPs accompanied Abdullah Kurdi to Kobani, the scene of fierce fighting between Islamic State insurgents and Kurdish forces earlier this year. Journalists and well-wishers were stopped at a checkpoint about two miles from the border.
The bodies of Aylan, Ghalib and Rehan were found on Wednesday after the small rubber boat they were travelling in capsized. They were among 12 refugees who drowned off Bodrum that day.

Unlike other Syrians heading for Europe, the Kurdi family had lived in Turkey for three years before deciding to head to Canada, where Abdullah’s sister lives.

Abdullah said the boat in which the family had been travelling had started taking in water about 500 meters from the shore and that, despite his best efforts, he had not been able to hold on to his wife and two sons. “I was holding my wife’s hand,” he told the Turkish news agency Dogan. “But my children slipped through my hands. It was dark and everyone was screaming.”


Structure of the Lead:
WHO-Aylan Kurdi
WHAT-the Syrian three-year-old came to be washed up dead on a beach
WHY-not given
WHERE-in Turkey


Keywords:
1.galvanize 通電
2. resort 渡假勝地
3capsize 翻覆
4 predominantly 主要
5insurgents 叛亂分子

2016年10月17日 星期一

Malala

    

    Malala Yousafzai was born on July 12, 1997, in Mingora, the largest city in the Swat Valley in what is now the         Khyber Pakhtunkhwa Province of Pakistan. She is the daughter of Ziauddin and Tor Pekai Yousafzai has and two     younger brothers.
At a very young age, Malala developed a thirst for knowledge. For years her father, a passionate education advocate himself, ran a learning institution in the city, and school was a big part of Malala's family. She later wrote that her father told her stories about how she would toddle into classes even before she could talk and acted as if she were the teacher.
In 2007, when Malala was ten years old, the situation in the Swat Valley rapidly changed for her family and community. The Taliban began to control the Swat Valley and quickly became the dominant socio-political force throughout much of northwestern Pakistan. Girls were banned from attending school, and cultural activities like dancing and watching television were prohibited. Suicide attacks were widespread, and the group made its opposition to a proper education for girls a cornerstone of its terror campaign. By the end of 2008, the Taliban had destroyed some 400 schools.
Determined to go to school and with a firm belief in her right to an education, Malala stood up to the Taliban. Alongside her father, Malala quickly became a critic of their tactics. "How dare the Taliban take away my basic right to education?" she once said on Pakistani TV.
In early 2009, Malala started to blog anonymously on the Urdu language site of the British Broadcasting Corporation (BBC). She wrote about life in the Swat Valley under Taliban rule, and about her desire to go to school. Using the name "Gul Makai," she described being forced to stay at home, and she questioned the motives of the Taliban.
Malala was 11 years old when she wrote her first BBC diary entry. Under the blog heading "I am afraid," she described her fear of a full-blown war in her beautiful Swat Valley, and her nightmares about being afraid to go to school because of the Taliban.
Pakistan's war with the Taliban was fast approaching, and on May 5, 2009, Malala became an internally displaced person (IDP), after having been forced to leave her home and seek safety hundreds of miles away.
On her return, after weeks of being away from Swat, Malala once again used the media and continued her public campaign for her right to go to school. Her voice grew louder, and over the course of the next three years, she and her father became known throughout Pakistan for their determination to give Pakistani girls access to a free quality education. Her activism resulted in a nomination for the International Children's Peace Prize in 2011. That same year, she was awarded Pakistan's National Youth Peace Prize. But, not everyone supported and welcomed her campaign to bring about change in Swat. On the morning of October 9, 2012, 15-year-old Malala Yousafzai was shot by the Taliban.
Seated on a bus heading home from school, Malala was talking with her friends about schoolwork. Two members of the Taliban stopped the bus. A young bearded Talib asked for Malala by name, and fired three shots at her. One of the bullets entered and exited her head and lodged in her shoulder. Malala was seriously wounded. That same day, she was airlifted to a Pakistani military hospital in Peshawar and four days later to an intensive care unit in Birmingham, England.
Once she was in the United Kingdom, Malala was taken out of a medically induced coma. Though she would require multiple surgeries, including repair of a facial nerve to fix the paralyzed left side of her face, she had suffered no major brain damage. In March 2013, after weeks of treatment and therapy, Malala was able to begin attending school in Birmingham.
After the shooting, her incredible recovery and return to school resulted in a global outpouring of support for Malala. On July 12, 2013, her 16th birthday, Malala visited New York and spoke at the United Nations. Later that year, she published her first book, an autobiography entitled "I Am Malala: The Girl Who Stood Up for Education and Was Shot by the Taliban." On October 10, 2013, in acknowledgement of her work, the European Parliament awarded Malala the prestigious Sakharov Prize for Freedom of Thought.
In 2014, through the Malala Fund, the organization she co-founded with her father, Malala traveled to Jordan to meet Syrian refugees, to Kenya to meet young female students, and finally to northern Nigeria for her 17th birthday. In Nigeria, she spoke out in support of the abducted girls who were kidnapped earlier that year by Boko Haram, a terrorist group which, like the Taliban, tries to stop girls from going to school.
In October 2014, Malala, along with Indian children's rights activist Kailash Satyarthi, was named a Nobel Peace Prize winner. At age 17, she became the youngest person to receive this prize. Accepting the award, Malala reaffirmed that "This award is not just for me. It is for those forgotten children who want education. It is for those frightened children who want peace. It is for those voiceless children who want change."
Today, the Malala Fund has become an organization that, through education, empowers girls to achieve their potential and become confident and strong leader in their own countries. Funding education projects in six countries and working with international leaders, the Malala Fund joins with local partners to invest in innovative solutions on the ground and advocates globally for quality secondary education for all girls.
Currently residing in Birmingham, Malala is an active proponent of education as a fundamental social and economic right. Through the Malala Fund and with her own voice, Malala Yousafzai remains a staunch advocate for the power of education and for girls to become agents of change in their communities.

From The Nobel Prizes 2014. Published on behalf of The Nobel Foundation by Science History Publications/USA, division Watson Publishing International LLC, Sagamore Beach, 2015

This autobiography/biography was written at the time of the award and later published in the book series Les Prix Nobel/ Nobel Lectures/The Nobel Prizes. The information is sometimes updated with an addendum submitted by the Laureate.

https://www.nobelprize.org/nobel_prizes/peace/laureates/2014/yousafzai-bio.html

who-Malala
when-on July 12, 1997
where- the largest city in the Swat Valley in what is now the Khyber Pakhtunkhwa Province of Pakistan





institution -制度dominant-占優勢的prohibited-禁止widespread-廣泛的educationanonymously-不具名的internally-國內的


https://www.nobelprize.org/nobel_prizes/peace/laureates/2014/yousafzai-bio.html