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A French art expert believes a charcoal drawing kept in a collection for more than 150 years may be a preparatory sketch made by Leonardo da Vinci of the Mona Lisa.
The black-and-white drawing of a woman, nude from the waist up, known as the Monna Vanna, was previously attributed to Leonardo’s studio, suggesting it was done in his style by a pupil or follower, not by the master himself.
But after preliminary tests at the Louvre Museum, experts believe the sketch may well have been drawn by Leonardo.
Among the signs, according to curator Mathieu Deldicque, are the fact the drawing was made during the same period as the Mona Lisa, the paper is from the same region of Italy, and the technique is very similar to that of the Mona Lisa.
“We know the drawing was made during the lifetime of Leonardo da Vinci, we know that the paper was made in Italy, between Venice and Florence, and the third discovery is the high quality of this drawing in the face of the Monna Vanna and in her arms,” Deldicque told reporters.
“That’s very interesting because the arms are the same as the Mona Lisa‘s.”
Leonardo, who lived from 1452 to 1519, was an engineer, scientist, inventor and sculptor, as well as one of the finest artists of the Italian Renaissance.
He painted the Mona Lisa, also known as La Gioconda and regarded as the world’s most valuable artwork, at the beginning of the 16th century. It is believed to depict Lisa Gherardini, the wife of a successful merchant.
EXCITING
The charcoal portrait, in which the woman is holding a similar pose to the Mona Lisa but with her body more side-on and her head turned further over her left shoulder, has been held in a collection at the Conde Museum at the Palace of Chantilly, north of Paris, since 1862.
The Mona Lisa and Monna Vanna hold their hands in very similar ways, the right hand across the left and resting on the forearm, the fingers gently extended.
Deldicque said that while it was exciting to think the charcoal drawing was created by Leonardo, there were more tests to be done.
“We have one more month of analysis and then a very slow process of history of art with a collection of analysts and advice by specialists,” he said.
It is possible that process will determine that the authorship is the same. But it may also be inconclusive, he said, adding:
“Maybe the mystery will remain.”
(Source: adapted from http://www.reuters.com/article/us-france-monalisa-sketch/is-16th-century-charcoal-sketch-a-naked-mona-lisa-idUSKCN1C42LD, retrieved on October 1, 2017)
How World Leaders Reacted to Trump at the U.N.
By SOMINI SENGUPTA and MEGAN SPECIA SEPT. 23, 2017
He was called a “giant gold Goliath” and a “rogue newcomer.” But in a few corners the remarks made by President Trump at the United Nations were described as “courageous” and “gratifying.”
Throughout the week, Mr. Trump’s first address to the General Assembly drew many direct and indirect swipes, from allies and rivals alike, and sparse support.
While the North Korean leader, Kim Jong-un, attacked Mr. Trump from afar — calling him a “dotard” in a statement on North Korean national television — others used their platforms at the United Nations to respond.
Some leaders were more subtle than others.
Robert Mugabe, Zimbabwe’s 93-year-old president, took aim at Mr. Trump during his own speech on Thursday. Mr. Mugabe mocked Mr. Trump as a “giant gold Goliath” and said other nations were “embarrassed if not frightened” by his statements about North Korea.
“Are we having a return of Goliath to our midst, who threatens the extinction of other countries?” Mr. Mugabe asked. Some responded with applause to his reference to the biblical character who threatened the Israelites before being slain by the young shepherd David, who would become king.
Mr. Mugabe then went on to address Mr. Trump directly, telling him to “blow your trumpet in a musical way towards the values of unity, peace, cooperation, togetherness and dialogue which we have always stood for.”
During his speech, Mr. Trump notably omitted any talk of climate change, seen as one of the most pressing issues for many world leaders.
Prime Minister Justin Trudeau of Canada received the longest applause during his General Assembly speech on Thursday after an implicit dig at Mr. Trump.
“There is no country on the planet that can walk away from the challenge and reality of climate change,” Mr. Trudeau said, referring to Mr. Trump’s plans to pull out of the Paris climate accord.
(Adapted from https://www.nytimes.com/2017/09/23/world/americas/world-leaders-trump-un.html?mcubz=0)
How World Leaders Reacted to Trump at the U.N.
By SOMINI SENGUPTA and MEGAN SPECIA SEPT. 23, 2017
He was called a “giant gold Goliath” and a “rogue newcomer.” But in a few corners the remarks made by President Trump at the United Nations were described as “courageous” and “gratifying.”
Throughout the week, Mr. Trump’s first address to the General Assembly drew many direct and indirect swipes, from allies and rivals alike, and sparse support.
While the North Korean leader, Kim Jong-un, attacked Mr. Trump from afar — calling him a “dotard” in a statement on North Korean national television — others used their platforms at the United Nations to respond.
Some leaders were more subtle than others.
Robert Mugabe, Zimbabwe’s 93-year-old president, took aim at Mr. Trump during his own speech on Thursday. Mr. Mugabe mocked Mr. Trump as a “giant gold Goliath” and said other nations were “embarrassed if not frightened” by his statements about North Korea.
“Are we having a return of Goliath to our midst, who threatens the extinction of other countries?” Mr. Mugabe asked. Some responded with applause to his reference to the biblical character who threatened the Israelites before being slain by the young shepherd David, who would become king.
Mr. Mugabe then went on to address Mr. Trump directly, telling him to “blow your trumpet in a musical way towards the values of unity, peace, cooperation, togetherness and dialogue which we have always stood for.”
During his speech, Mr. Trump notably omitted any talk of climate change, seen as one of the most pressing issues for many world leaders.
Prime Minister Justin Trudeau of Canada received the longest applause during his General Assembly speech on Thursday after an implicit dig at Mr. Trump.
“There is no country on the planet that can walk away from the challenge and reality of climate change,” Mr. Trudeau said, referring to Mr. Trump’s plans to pull out of the Paris climate accord.
(Adapted from https://www.nytimes.com/2017/09/23/world/americas/world-leaders-trump-un.html?mcubz=0)
Turn the active voice into passive voice:
Mr. Trump notably omitted any talk of climate change
How World Leaders Reacted to Trump at the U.N.
By SOMINI SENGUPTA and MEGAN SPECIA SEPT. 23, 2017
He was called a “giant gold Goliath” and a “rogue newcomer.” But in a few corners the remarks made by President Trump at the United Nations were described as “courageous” and “gratifying.”
Throughout the week, Mr. Trump’s first address to the General Assembly drew many direct and indirect swipes, from allies and rivals alike, and sparse support.
While the North Korean leader, Kim Jong-un, attacked Mr. Trump from afar — calling him a “dotard” in a statement on North Korean national television — others used their platforms at the United Nations to respond.
Some leaders were more subtle than others.
Robert Mugabe, Zimbabwe’s 93-year-old president, took aim at Mr. Trump during his own speech on Thursday. Mr. Mugabe mocked Mr. Trump as a “giant gold Goliath” and said other nations were “embarrassed if not frightened” by his statements about North Korea.
“Are we having a return of Goliath to our midst, who threatens the extinction of other countries?” Mr. Mugabe asked. Some responded with applause to his reference to the biblical character who threatened the Israelites before being slain by the young shepherd David, who would become king.
Mr. Mugabe then went on to address Mr. Trump directly, telling him to “blow your trumpet in a musical way towards the values of unity, peace, cooperation, togetherness and dialogue which we have always stood for.”
During his speech, Mr. Trump notably omitted any talk of climate change, seen as one of the most pressing issues for many world leaders.
Prime Minister Justin Trudeau of Canada received the longest applause during his General Assembly speech on Thursday after an implicit dig at Mr. Trump.
“There is no country on the planet that can walk away from the challenge and reality of climate change,” Mr. Trudeau said, referring to Mr. Trump’s plans to pull out of the Paris climate accord.
(Adapted from https://www.nytimes.com/2017/09/23/world/americas/world-leaders-trump-un.html?mcubz=0)
How World Leaders Reacted to Trump at the U.N.
By SOMINI SENGUPTA and MEGAN SPECIA SEPT. 23, 2017
He was called a “giant gold Goliath” and a “rogue newcomer.” But in a few corners the remarks made by President Trump at the United Nations were described as “courageous” and “gratifying.”
Throughout the week, Mr. Trump’s first address to the General Assembly drew many direct and indirect swipes, from allies and rivals alike, and sparse support.
While the North Korean leader, Kim Jong-un, attacked Mr. Trump from afar — calling him a “dotard” in a statement on North Korean national television — others used their platforms at the United Nations to respond.
Some leaders were more subtle than others.
Robert Mugabe, Zimbabwe’s 93-year-old president, took aim at Mr. Trump during his own speech on Thursday. Mr. Mugabe mocked Mr. Trump as a “giant gold Goliath” and said other nations were “embarrassed if not frightened” by his statements about North Korea.
“Are we having a return of Goliath to our midst, who threatens the extinction of other countries?” Mr. Mugabe asked. Some responded with applause to his reference to the biblical character who threatened the Israelites before being slain by the young shepherd David, who would become king.
Mr. Mugabe then went on to address Mr. Trump directly, telling him to “blow your trumpet in a musical way towards the values of unity, peace, cooperation, togetherness and dialogue which we have always stood for.”
During his speech, Mr. Trump notably omitted any talk of climate change, seen as one of the most pressing issues for many world leaders.
Prime Minister Justin Trudeau of Canada received the longest applause during his General Assembly speech on Thursday after an implicit dig at Mr. Trump.
“There is no country on the planet that can walk away from the challenge and reality of climate change,” Mr. Trudeau said, referring to Mr. Trump’s plans to pull out of the Paris climate accord.
(Adapted from https://www.nytimes.com/2017/09/23/world/americas/world-leaders-trump-un.html?mcubz=0)
( ) One of the problems of current research on the hazards of mobile phones is that they have been popular for too long, which creates a lot of data do be analyzed. ( ) Regarding the risks mobile phones can pose to our health, health professionals worldwide believe it is better to be cautious until more conclusive research is conducted. ( ) The frequency used by mobile phones is significantly higher than the frequency of microwaves, hence the health problems. ( ) Health professionals use the example of the tobacco industry to illustrate that mobile phones can be dangerous, even though research is still not conclusive on that.
The correct sequence, from top to bottom is:
__________ is your birthday?
It is ________ November.
Great! We ________ celebrate together.
According to the text, answer true (T) or false (F):
( ) The referendum was held only in some parts of Turkey
( ) The referendum has reduced Recip Erdogan’s presidential powers.
( ) With the new constitution, the Turkish president will not be able to appoint his own ministers.
( ) The European Union that the referendum is not going to help Turkey become a member of the
The correct sequence, from top to bottom is:
Re-Planting a Forest, One Drone at a Time
That funny little buzz you hear in the forest may not just be the hum of summer insects. In the near future it could be a small fleet of drones, coming to replant and restore forests that have been stripped of trees by industrial-scale deforestation. It’s all part of an ambitious plan by BioCarbon Engineering, a U.K.-based startup on a global mission to battle widespread clear-cutting, which strips more than 26 billion trees off the planet each year. CEO Lauren Fletcher, who spent 20 years as an engineer with NASA, says the only way to fight industrial-scale deforestation is with industrial-scale reforestation. Their idea: plant 1 billion trees a year. The first targets are in South Africa and the Amazonian jungles, both of which have suffered from widespread forest eradication.
BioCarbon’s reforestation scheme is simple and efficient. Here’s a quick look at how it plans to deploy its drone fleet:
1 Do a 3-D aerial survey. First, drones are sent to fly over a potential planting zone, snapping photos that create 3-D maps of the area to be reforested. The number of drones will vary depending up on the size of the seeding.
2 Create a seeding plan. Once all that terrain data has been analyzed, it then generates a seeding pattern that best suits the terrain.
3 Load the seed pods. The drones, which are equipped with guidance and control software, carry pressurized canisters of seed pods with germinated seeds immersed in a nutrient-rich gel.
4 Hover and plant. Flying at a height of 1 or 2 meters, the drones follow the planting patterns, firing the biodegradable seed pods down to the ground. The pods break open upon impact, allowing the germinated seed a chance to take root.
5 Monitor growth. After planting, the drones do low-level flights to assess the health of the sprouts and saplings.
Such “precision forestry,” as BioCarbon calls it, is extremely efficient. A farmer might hand plant as many as 3,000 seeds a day; Fletcher says his drones can drop up to 36,000 seed pods daily, often in areas where a human can’t reach. Working with local ecologists, BioCarbon will use the drones to spread a variety of tree species, as well as microorganisms and fungi designed to improve the soil quality. “The central focus is ecosystem restoration,” Fletcher says.
On a planetary climatological scale, Morton notes that “tropical deforestation plays a big role in global climate cycles,” claiming the accelerated pace of cutting and burning of forests accounted for 20 percent of greenhouse gas emissions in the 1990s. Fletcher and his team want to help reverse that trend. “By planting at the scale we’re looking at,” he says, “we can make a real longterm impact. We hope to do a lot of good in the world.”
(Adapted from https://www.wired.com/brandlab/2015/07/re-planting-forest-one-drone-time/. Access on 22/8/2017)
Re-Planting a Forest, One Drone at a Time
That funny little buzz you hear in the forest may not just be the hum of summer insects. In the near future it could be a small fleet of drones, coming to replant and restore forests that have been stripped of trees by industrial-scale deforestation. It’s all part of an ambitious plan by BioCarbon Engineering, a U.K.-based startup on a global mission to battle widespread clear-cutting, which strips more than 26 billion trees off the planet each year. CEO Lauren Fletcher, who spent 20 years as an engineer with NASA, says the only way to fight industrial-scale deforestation is with industrial-scale reforestation. Their idea: plant 1 billion trees a year. The first targets are in South Africa and the Amazonian jungles, both of which have suffered from widespread forest eradication.
BioCarbon’s reforestation scheme is simple and efficient. Here’s a quick look at how it plans to deploy its drone fleet:
1 Do a 3-D aerial survey. First, drones are sent to fly over a potential planting zone, snapping photos that create 3-D maps of the area to be reforested. The number of drones will vary depending up on the size of the seeding.
2 Create a seeding plan. Once all that terrain data has been analyzed, it then generates a seeding pattern that best suits the terrain.
3 Load the seed pods. The drones, which are equipped with guidance and control software, carry pressurized canisters of seed pods with germinated seeds immersed in a nutrient-rich gel.
4 Hover and plant. Flying at a height of 1 or 2 meters, the drones follow the planting patterns, firing the biodegradable seed pods down to the ground. The pods break open upon impact, allowing the germinated seed a chance to take root.
5 Monitor growth. After planting, the drones do low-level flights to assess the health of the sprouts and saplings.
Such “precision forestry,” as BioCarbon calls it, is extremely efficient. A farmer might hand plant as many as 3,000 seeds a day; Fletcher says his drones can drop up to 36,000 seed pods daily, often in areas where a human can’t reach. Working with local ecologists, BioCarbon will use the drones to spread a variety of tree species, as well as microorganisms and fungi designed to improve the soil quality. “The central focus is ecosystem restoration,” Fletcher says.
On a planetary climatological scale, Morton notes that “tropical deforestation plays a big role in global climate cycles,” claiming the accelerated pace of cutting and burning of forests accounted for 20 percent of greenhouse gas emissions in the 1990s. Fletcher and his team want to help reverse that trend. “By planting at the scale we’re looking at,” he says, “we can make a real longterm impact. We hope to do a lot of good in the world.”
(Adapted from https://www.wired.com/brandlab/2015/07/re-planting-forest-one-drone-time/. Access on 22/8/2017)
Re-Planting a Forest, One Drone at a Time
That funny little buzz you hear in the forest may not just be the hum of summer insects. In the near future it could be a small fleet of drones, coming to replant and restore forests that have been stripped of trees by industrial-scale deforestation. It’s all part of an ambitious plan by BioCarbon Engineering, a U.K.-based startup on a global mission to battle widespread clear-cutting, which strips more than 26 billion trees off the planet each year. CEO Lauren Fletcher, who spent 20 years as an engineer with NASA, says the only way to fight industrial-scale deforestation is with industrial-scale reforestation. Their idea: plant 1 billion trees a year. The first targets are in South Africa and the Amazonian jungles, both of which have suffered from widespread forest eradication.
BioCarbon’s reforestation scheme is simple and efficient. Here’s a quick look at how it plans to deploy its drone fleet:
1 Do a 3-D aerial survey. First, drones are sent to fly over a potential planting zone, snapping photos that create 3-D maps of the area to be reforested. The number of drones will vary depending up on the size of the seeding.
2 Create a seeding plan. Once all that terrain data has been analyzed, it then generates a seeding pattern that best suits the terrain.
3 Load the seed pods. The drones, which are equipped with guidance and control software, carry pressurized canisters of seed pods with germinated seeds immersed in a nutrient-rich gel.
4 Hover and plant. Flying at a height of 1 or 2 meters, the drones follow the planting patterns, firing the biodegradable seed pods down to the ground. The pods break open upon impact, allowing the germinated seed a chance to take root.
5 Monitor growth. After planting, the drones do low-level flights to assess the health of the sprouts and saplings.
Such “precision forestry,” as BioCarbon calls it, is extremely efficient. A farmer might hand plant as many as 3,000 seeds a day; Fletcher says his drones can drop up to 36,000 seed pods daily, often in areas where a human can’t reach. Working with local ecologists, BioCarbon will use the drones to spread a variety of tree species, as well as microorganisms and fungi designed to improve the soil quality. “The central focus is ecosystem restoration,” Fletcher says.
On a planetary climatological scale, Morton notes that “tropical deforestation plays a big role in global climate cycles,” claiming the accelerated pace of cutting and burning of forests accounted for 20 percent of greenhouse gas emissions in the 1990s. Fletcher and his team want to help reverse that trend. “By planting at the scale we’re looking at,” he says, “we can make a real longterm impact. We hope to do a lot of good in the world.”
(Adapted from https://www.wired.com/brandlab/2015/07/re-planting-forest-one-drone-time/. Access on 22/8/2017)
Re-Planting a Forest, One Drone at a Time
That funny little buzz you hear in the forest may not just be the hum of summer insects. In the near future it could be a small fleet of drones, coming to replant and restore forests that have been stripped of trees by industrial-scale deforestation. It’s all part of an ambitious plan by BioCarbon Engineering, a U.K.-based startup on a global mission to battle widespread clear-cutting, which strips more than 26 billion trees off the planet each year. CEO Lauren Fletcher, who spent 20 years as an engineer with NASA, says the only way to fight industrial-scale deforestation is with industrial-scale reforestation. Their idea: plant 1 billion trees a year. The first targets are in South Africa and the Amazonian jungles, both of which have suffered from widespread forest eradication.
BioCarbon’s reforestation scheme is simple and efficient. Here’s a quick look at how it plans to deploy its drone fleet:
1 Do a 3-D aerial survey. First, drones are sent to fly over a potential planting zone, snapping photos that create 3-D maps of the area to be reforested. The number of drones will vary depending up on the size of the seeding.
2 Create a seeding plan. Once all that terrain data has been analyzed, it then generates a seeding pattern that best suits the terrain.
3 Load the seed pods. The drones, which are equipped with guidance and control software, carry pressurized canisters of seed pods with germinated seeds immersed in a nutrient-rich gel.
4 Hover and plant. Flying at a height of 1 or 2 meters, the drones follow the planting patterns, firing the biodegradable seed pods down to the ground. The pods break open upon impact, allowing the germinated seed a chance to take root.
5 Monitor growth. After planting, the drones do low-level flights to assess the health of the sprouts and saplings.
Such “precision forestry,” as BioCarbon calls it, is extremely efficient. A farmer might hand plant as many as 3,000 seeds a day; Fletcher says his drones can drop up to 36,000 seed pods daily, often in areas where a human can’t reach. Working with local ecologists, BioCarbon will use the drones to spread a variety of tree species, as well as microorganisms and fungi designed to improve the soil quality. “The central focus is ecosystem restoration,” Fletcher says.
On a planetary climatological scale, Morton notes that “tropical deforestation plays a big role in global climate cycles,” claiming the accelerated pace of cutting and burning of forests accounted for 20 percent of greenhouse gas emissions in the 1990s. Fletcher and his team want to help reverse that trend. “By planting at the scale we’re looking at,” he says, “we can make a real longterm impact. We hope to do a lot of good in the world.”
(Adapted from https://www.wired.com/brandlab/2015/07/re-planting-forest-one-drone-time/. Access on 22/8/2017)
( ) The drones can drop seeds in places which are hard to access. ( ) The drones will make a lot of noise, which can pose a risk to nature. ( ) Fletcher and his team expect that the drones will have a positive impact in the long run ( ) The drones can only help spread tree species. ( ) Despite being simple, BioCarbon’s reforestation scheme is efficient.
The correct sequence, from top to bottom is:
Re-Planting a Forest, One Drone at a Time
That funny little buzz you hear in the forest may not just be the hum of summer insects. In the near future it could be a small fleet of drones, coming to replant and restore forests that have been stripped of trees by industrial-scale deforestation. It’s all part of an ambitious plan by BioCarbon Engineering, a U.K.-based startup on a global mission to battle widespread clear-cutting, which strips more than 26 billion trees off the planet each year. CEO Lauren Fletcher, who spent 20 years as an engineer with NASA, says the only way to fight industrial-scale deforestation is with industrial-scale reforestation. Their idea: plant 1 billion trees a year. The first targets are in South Africa and the Amazonian jungles, both of which have suffered from widespread forest eradication.
BioCarbon’s reforestation scheme is simple and efficient. Here’s a quick look at how it plans to deploy its drone fleet:
1 Do a 3-D aerial survey. First, drones are sent to fly over a potential planting zone, snapping photos that create 3-D maps of the area to be reforested. The number of drones will vary depending up on the size of the seeding.
2 Create a seeding plan. Once all that terrain data has been analyzed, it then generates a seeding pattern that best suits the terrain.
3 Load the seed pods. The drones, which are equipped with guidance and control software, carry pressurized canisters of seed pods with germinated seeds immersed in a nutrient-rich gel.
4 Hover and plant. Flying at a height of 1 or 2 meters, the drones follow the planting patterns, firing the biodegradable seed pods down to the ground. The pods break open upon impact, allowing the germinated seed a chance to take root.
5 Monitor growth. After planting, the drones do low-level flights to assess the health of the sprouts and saplings.
Such “precision forestry,” as BioCarbon calls it, is extremely efficient. A farmer might hand plant as many as 3,000 seeds a day; Fletcher says his drones can drop up to 36,000 seed pods daily, often in areas where a human can’t reach. Working with local ecologists, BioCarbon will use the drones to spread a variety of tree species, as well as microorganisms and fungi designed to improve the soil quality. “The central focus is ecosystem restoration,” Fletcher says.
On a planetary climatological scale, Morton notes that “tropical deforestation plays a big role in global climate cycles,” claiming the accelerated pace of cutting and burning of forests accounted for 20 percent of greenhouse gas emissions in the 1990s. Fletcher and his team want to help reverse that trend. “By planting at the scale we’re looking at,” he says, “we can make a real longterm impact. We hope to do a lot of good in the world.”
(Adapted from https://www.wired.com/brandlab/2015/07/re-planting-forest-one-drone-time/. Access on 22/8/2017)
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